Shanghai Huabang Industrial Business Network - Ceramic arc extinguishing chamber

[Ceramic arc extinguishing chamber]ZMF-12/630-20 Vacuum arc extinguishing chamber

2026-6-16 14:34:23

Vacuum arc extinguishing chamber for ZMF-12/630-20 vacuum load switch

Model number	ZMF-12/630-20
rated voltage	12KV
rated current	630A
Rated short-time withstand current	20KA
Rated peak withstand current	50KA
Rated peak closing current	50KA
Rated short-circuit duration	4S
Rated short-time (1-minute) power frequency withstand voltage	42KV
Rated lightning impulse withstand voltage	75KV
Rated current breaking times	10000 times
Circuit resistance under rated contact pressure	��35�̦�
mechanical life	10000 times
Contact self closing force	90±20N
Contact reaction force at rated opening distance	150±30N
Allowable wear thickness of contacts	3mm
Allow storage period	20a

[Ceramic arc extinguishing chamber]ZMF-12/630-12.5 Vacuum arc extinguishing chamber

2026-6-16 14:34:15

Vacuum arc extinguishing chamber for ZMF-12/630-12.5 vacuum load switch

Model number	ZMF-12/630-12.5
rated voltage	12KV
rated current	630A
Rated short-time withstand current	12.5KA
Rated peak withstand current	31.5KA
Rated peak closing current	50KA
Rated short-circuit duration	4S
Rated short-time (1-minute) power frequency withstand voltage	42KV
Rated lightning impulse withstand voltage	75KV
Rated current breaking times	10000 times
Circuit resistance under rated contact pressure	��25�̦�
mechanical life	10000 times
Contact self closing force	100±20N
Contact reaction force at rated opening distance	160±30N
Allowable wear thickness of contacts	3mm
Allow storage period	20a

[Ceramic arc extinguishing chamber]ZMF-12/400-20 Vacuum arc extinguishing chamber

2026-6-16 14:34:07

Vacuum arc extinguishing chamber for ZMF-12/400-20 vacuum load switch

Model number	ZMF-12/400-20
rated voltage	2KV
rated current	400A
Rated operating frequency	50HZ
Vacuum self closing force	90±20N
Maximum opening distance of contacts	4mm
Tensile force at a contact opening distance of 4mm	120±20N
Contact resistance when the contact naturally closes	��200�̦�
Power frequency withstand voltage at a contact distance of 4mm (1min)	20KV
Maximum closing current

[Ceramic arc extinguishing chamber]ZMF-12/400-16 Vacuum arc extinguishing chamber

2026-6-16 14:33:58

Vacuum arc extinguishing chamber for ZMF-12/400-16 vacuum load switch

Model number	ZMF-12/400-16
rated voltage	12KV
rated current	400A
Rated operating frequency	50HZ
Vacuum self closing force	90±20N
Maximum opening distance of contacts	6mm
Tensile force at a contact opening distance of 4mm	10±15N
Contact resistance when the contact naturally closes	��70�̦�
Power frequency withstand voltage at a contact distance of 4mm (1min)	38-42KV
Maximum closing current	16KA

[Ceramic arc extinguishing chamber]TD32-12/630-12.5 Vacuum arc extinguishing chamber

2026-6-16 14:33:49

The vacuum arc extinguishing chamber for TD32-12/630-12.5 vacuum circuit breaker is made of ceramic shell and is used for mining switches.

[Ceramic arc extinguishing chamber]TD32-7.2/630-12.5 Vacuum arc extinguishing chamber

2026-6-16 14:33:38

TD32-7.2/630-12.5 Vacuum arc extinguishing chamber for vacuum circuit breakers

[Ceramic arc extinguishing chamber]TD25-12/1250-20 Vacuum arc extinguishing chamber

2026-6-16 14:33:28

Vacuum arc extinguishing chamber for TD25-12/1250-20 vacuum circuit breaker

[Ceramic arc extinguishing chamber]TD25-12/630 series Vacuum arc extinguishing chamber

2026-6-16 14:33:20

The vacuum arc extinguishing chamber for TD25-12/630 series vacuum circuit breakers is made of ceramic shell and is used for ZW33-12/D630-20 (recloser) and other applications.

TD25-12/630-20
TD25-12/630-20C
TD25-12/630-20A
TD25-12/630-16
TD25-12/630-20

[Ceramic arc extinguishing chamber]TD34-12/1000-25 (TD4803A) Vacuum arc extinguishing chamber

2026-6-16 14:33:11

The vacuum arc extinguishing chamber for TD34-12/1000-25 (TD4803A) vacuum circuit breaker is made of ceramic shell and is used for ZN96-12 circuit breaker.

[Ceramic arc extinguishing chamber]TD34-12/1250-31.5R (TD34-12/1250-31.5B) Vacuum arc extinguishing chamber

2026-6-16 14:33:03

The vacuum arc extinguishing chamber for TD34-12/1250-31.5R (TD34-12/1250-31.5B) vacuum circuit breaker is made of ceramic shell and is used for ZN96-12 vacuum circuit breaker.

[Ceramic arc extinguishing chamber]TD34-12/3150-40 Vacuum arc extinguishing chamber

2026-6-16 14:32:55

The vacuum arc extinguishing chamber for TD34-12/3150-40 vacuum circuit breaker is made of ceramic shell and is used for ZN96-12 with long service life KYN96-12��AMS1��

[Ceramic arc extinguishing chamber]TD34-12/3150-40A Vacuum arc extinguishing chamber

2026-6-16 14:32:46

The vacuum arc extinguishing chamber for TD34-12/3150-40A vacuum circuit breaker is a ceramic insulated shell used for ZN63-12 solid sealed vacuum circuit breaker.

[Ceramic arc extinguishing chamber]TD14A-12/2000-31.5F ceramic vacuum arc extinguishing chamber

2026-6-16 14:32:38

TD14A-12/2000-31.5F ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD14A-12/2500-31.5F Vacuum arc extinguishing chamber

2026-6-16 14:32:29

The vacuum interrupter for TD14A-12/2500-31.5F vacuum circuit breaker is a ceramic vacuum interrupter used in vacuum circuit breakers such as ZN63, ZN65, ZN68-12, etc.

[Ceramic arc extinguishing chamber]TD14A-12/630 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:32:21

The TD14A-12/630 vacuum circuit breaker is equipped with ceramic vacuum arc extinguishing chambers for ZN28, ZN22, ZN33, ZN58, ZN63, ZN65, and ZN68 circuit breakers.

TD14A-12/630-20
TD14A-12/630-25

[Ceramic arc extinguishing chamber]TD14A-12/1000 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:32:12

The ceramic vacuum arc extinguishing chamber for TD14A-12/1000 vacuum circuit breaker is used for circuit breakers ZN28, ZN22, ZN33, ZN58, ZN63, ZN65, and ZN68.

TD14A-12/1000-20
TD14A-12/1000-25

[Ceramic arc extinguishing chamber]TD14A-12/1250-20 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:32:04

TD14A-12/1250-20 ceramic vacuum interrupter is used for high-voltage vacuum circuit breakers such as ZN28, ZN22, ZN33, ZN58, ZN63, ZN65, ZN68, etc.

[Ceramic arc extinguishing chamber]TD14A-12/1250-31.5J Ceramic vacuum arc extinguishing chamber

2026-6-16 14:31:55

TD14A-12/1250-31.5J ceramic vacuum arc extinguishing chamber for vacuum circuit breakers, suitable for ZN28, ZN22, ZN33, ZN58, ZN63, ZN65, ZN68.

[Ceramic arc extinguishing chamber]TD14A-12/1600-31.5L Ceramic vacuum arc extinguishing chamber

2026-6-16 14:31:47

TD14A-12/1600-31.5L ceramic vacuum arc extinguishing chamber is used for ZN168 (VBG) -12, ZN63, ZN65 and other circuit breakers, with a long life of 100000 cycles.

[Ceramic arc extinguishing chamber]TD14A-12/1600-25 ceramic insulated shell vacuum arc extinguishing chamber

2026-6-16 14:31:38

TD14A-12/1600-25 ceramic insulated shell vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD14A-12/1250-25 Vacuum arc extinguishing chamber

2026-6-16 14:31:30

The vacuum arc extinguishing chamber for TD14A-12/1250-25 vacuum circuit breaker is a ceramic insulated shell, used for ZN28, ZN22, ZN33, ZN58, ZN63, ZN65, ZN68 vacuum circuit breakers

[Ceramic arc extinguishing chamber]TD14A-12/1600-31.5B Vacuum arc extinguishing chamber

2026-6-16 14:31:22

The vacuum arc extinguishing chamber for TD14A-12/1600-31.5B vacuum circuit breaker is a ceramic insulated shell, used for ZN28��ZN22��ZN33��ZN58��ZN63��ZN65��ZN68��

[Ceramic arc extinguishing chamber]TD14-12/1250-31.5B/Z Vacuum arc extinguishing chamber

2026-6-16 14:31:13

The vacuum arc extinguishing chamber for TD14-12/1250-31.5B/Z vacuum circuit breaker is a ceramic insulated shell arc extinguishing chamber, used for ZN28, ZN22, ZN33, ZN63, ZN68, altitude �� 4300m.

[Ceramic arc extinguishing chamber]TD14-12/1600-31.5B/Z (TD14-12/1600-31.5D)Vacuum arc extinguishing chamber

2026-6-16 14:31:05

The vacuum arc extinguishing chamber for TD14-12/1600-31.5B/Z (TD14-12/1600-31.5D) vacuum circuit breaker is a ceramic insulated shell. Used for ZN28, ZN22, ZN33, ZN63, ZN68, altitude �� 4300m.

[Ceramic arc extinguishing chamber]TD14-12/1250-25A Vacuum arc extinguishing chamber

2026-6-16 14:30:56

The vacuum arc extinguishing chamber (TD303A) for TD14-12/1250-25A vacuum circuit breaker is a ceramic insulated housing used for ZN63

[Ceramic arc extinguishing chamber]TD��7-12/6300-80A Vacuum arc extinguishing chamber

2026-6-16 14:30:48

The vacuum arc extinguishing chamber for TD��7-12/6300-80A vacuum circuit breaker is a ceramic insulated shell vacuum arc extinguishing chamber used for generator protection of the circuit breaker

[Ceramic arc extinguishing chamber]TD0132A Low voltage vacuum arc extinguishing chamber

2026-6-16 14:30:39

TD0132A Low pressure vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]ZMD12/630-20 ceramic vacuum arc extinguishing chamber

2026-6-16 14:30:31

ZMD12/630-20 ceramic vacuum arc extinguishing chamber

Model number	ZMD12/630-20 ZMD12/630-20(I)
rated voltage	12KV
rated current	630A
Rated short-circuit breaking current	20KA
Rated short-circuit closing current (peak)	50KA
Rated peak withstand current	50KA
Rated short-time withstand current	20KA
Rated short-circuit duration	4S
Rated short-time (lmin) power frequency withstand voltage	42KV
Rated lightning impulse voltage	75KV
Circuit resistance under rated contact pressure	��25�̦�
Rated short-circuit breaking current breaking times	50 times
Rated current breaking times	10000 times
mechanical life	10000 times
Contact self closing force	150±50N
Contact reaction force under contact opening distance	210±60N
Allowable thickness for electrical wear of contacts	3mm
quality	3.5kg

[Ceramic arc extinguishing chamber]ZMD12/800-25 ceramic vacuum arc extinguishing chamber

2026-6-16 14:30:23

ZMD12/800-25 ceramic vacuum arc extinguishing chamber

Model number	ZMD12/800-25
rated voltage	12KV
rated current	800A
Rated short-circuit breaking current	25KA
Rated short-circuit closing current (peak)	63KA
Rated peak withstand current	63KA
Rated short-time withstand current	25KA
Rated short-circuit duration	4S
Rated short-time (lmin) power frequency withstand voltage	42KV
Rated lightning impulse voltage	75KV
Circuit resistance under rated contact pressure	��40�̦�
Rated short-circuit breaking current breaking times	50 times
Rated current breaking times	10000 times
mechanical life	10000 times
Contact self closing force	150±50N
Contact reaction force under contact opening distance	210±60N
Allowable thickness for electrical wear of contacts	3mm
quality	3.3kg

[Ceramic arc extinguishing chamber]ZMD14-1250, 1600/10-31.5 ceramic vacuum arc extinguishing chamber

2026-6-16 14:30:14

ZMD14-1250, 1600/10-31.5 ceramic vacuum arc extinguishing chamber

model	ZMD14-1250/10-31.5 ZMD14-1600/10-31.5
rated voltage	12KV
rated frequency	50~60Hz
rated current	1250��1600A
Rated short-circuit breaking current	31.5KA
Rated short-circuit closing current (peak)	80KA
Rated peak withstand current	80KA
Rated short-time withstand current	31.5KA
Rated short-circuit duration	4S
Rated breaking current of a single capacitor bank	630A
Rated back-to-back capacitor bank breaking current	400A
Rated short-time (1-minute) power frequency withstand voltage	42KV
Rated lightning impulse withstand voltage	75KV
Circuit resistance under rated contact pressure	��25�̦�
Rated short-circuit breaking current breaking times	30/50 times
Rated current breaking times	10000 times
mechanical life	10000 times
Allowable wear thickness of contacts	3mm
Contact self closing force	160±60N
Contact reaction force	210±60N
Quality of the sports section	1.18kg
quality	4.1kg
Allow storage period	20a
Mechanical parameters that the matching vacuum circuit breaker should meet
contact gap	11±1mm
Contact stroke of contacts	4±1mm
Average opening speed	1.1±0.2m/s
Average closing speed	0.6±0.2m/s
Rated contact pressure	3350±320N
Contact closing bounce time	��2ms
Contact closing and opening at different periods	��1ms

[Ceramic arc extinguishing chamber]ZMD14-1250, 1600/10-20 ceramic vacuum arc extinguishing chamber

2026-6-16 14:30:06

ZMD14-1250, 1600/10-20 ceramic vacuum arc extinguishing chamber

model	ZMD14-1250/10-20 ZMD14-1600/10-20
rated voltage	12KV
rated frequency	50~60Hz
rated current	1250��1600A
Rated short-circuit breaking current	20KA
Rated short-circuit closing current (peak)	50KA
Rated peak withstand current	50KA
Rated short-time withstand current	20KA
Rated short-circuit duration	4S
Rated breaking current of a single capacitor bank	630A
Rated back-to-back capacitor bank breaking current	400A
Rated short-time (1-minute) power frequency withstand voltage	42KV
Rated lightning impulse withstand voltage	75KV
Circuit resistance under rated contact pressure	��25�̦�
Rated short-circuit breaking current breaking times	30/50 times
Rated current breaking times	10000 times
mechanical life	10000 times
Allowable wear thickness of contacts	3mm
Contact self closing force	160±60N
Contact reaction force	210±60N
Quality of the sports section	1.05kg
quality	4.kg
Allow storage period	20a
Mechanical parameters that the matching vacuum circuit breaker should meet
contact gap	11±1.5/0 mm
Contact stroke of contacts	4±1mm
Average opening speed	1±0.3m/s
Average closing speed	0.55±0.15m/s
Rated contact pressure	2000±200N
Contact closing bounce time	��2ms
Contact closing and opening at different periods	��1ms

[Ceramic arc extinguishing chamber]ZKTJ-160/1.14 ceramic vacuum switch tube

2026-6-16 14:29:57

ZKTJ-160/1.14 ceramic vacuum switch tube

Model number	ZKTJ-160/1.14
Rated voltage (V)	one thousand one hundred and forty
Rated current (A)	ten
Ultimate Breaking Capacity (A)	three thousand
Electrical lifespan (AC4 times)	6x104
Contact resistance (�� )	��200
Vacuum self closing force (N)	17.6±4.9
Mass (Kg)	zero point two three
Dimensions (mm)	98±0.5
Dimensions (mm)	��35.3

ZKTJ-160/1.14 ceramic vacuum switch tube

[Ceramic arc extinguishing chamber]ZKTJ-80/0.66 ceramic vacuum switch tube

2026-6-16 14:29:49

ZKTJ-80/0.66 ceramic vacuum switch tube

Rated voltage 660V, rated current 80A, ultimate breaking capacity 1600A, contact resistance �� 300, mass 0.11kg.

Model number	ZKTJ-80/0.66
Rated voltage (V)	six hundred and sixty
Rated current (A)	eighty
Ultimate Breaking Capacity (A)	one thousand and six hundred
Electrical lifespan (AC4 times)	6x104
Contact resistance (�� )	��300
Vacuum self closing force (N)	17±4
Mass (Kg)	zero point one one
Dimensions (mm)	68.5±1
Dimensions (mm)	��30±0.5

ZKTJ-80/0.66 ceramic vacuum switch tube

[Ceramic arc extinguishing chamber]TD21-40.5/2000-31.5 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:29:40

TD21-40.5/2000-31.5 Ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD12-40.5/2500-31.5 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:29:32

TD12-40.5/2500-31.5 Ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD27-40.5/1600-31.5 Ceramic Vacuum Arc Extinguisher Chamber

2026-6-16 14:29:23

TD27-40.5/1600-31.5 Ceramic Vacuum Arc Extinguisher Chamber

[Ceramic arc extinguishing chamber]TD27-40.5/2000-31.5 Ceramic Vacuum Arc Extinguisher Chamber

2026-6-16 14:29:15

TD27-40.5/2000-31.5 Ceramic Vacuum Arc Extinguisher Chamber

[Ceramic arc extinguishing chamber]TD24-40.5/1250-16 ceramic vacuum arc extinguishing chamber

2026-6-16 14:29:05

TD24-40.5/1250-16 ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD24-40.5/630-12.5 ceramic vacuum arc extinguishing chamber

2026-6-16 14:28:56

TD24-40.5/630-12.5 ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD34-24/3150-31.5C ceramic vacuum arc extinguishing chamber

2026-6-16 14:28:48

TD34-24/3150-31.5C ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD34-24/1600-25A/R ceramic vacuum arc extinguishing chamber

2026-6-16 14:28:40

TD34-24/1600-25A/R ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD34-24/630-25A/R ceramic vacuum arc extinguishing chamber

2026-6-16 14:28:31

TD34-24/630-25A/R ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD27-36/2000-31.5A/R ceramic vacuum arc extinguishing chamber

2026-6-16 14:28:23

TD27-36/2000-31.5A/R ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD17-38/1250-20 ceramic vacuum arc extinguishing chamber

2026-6-16 14:28:13

TD17-38/1250-20 ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD17-38/630-16 ceramic vacuum arc extinguishing chamber

2026-6-16 14:28:05

TD17-38/630-16 ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD27-36/2000-25A ceramic vacuum arc extinguishing chamber

2026-6-16 14:27:57

TD27-36/2000-25A ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD34-24/1250-20A/R ceramic vacuum arc extinguishing chamber

2026-6-16 14:27:48

TD34-24/1250-20A/R ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD-12/6300-80A ceramic vacuum arc extinguishing chamber

2026-6-16 14:27:40

TD-12/6300-80A ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD24-12/630-20C ceramic vacuum arc extinguishing chamber

2026-6-16 14:27:28

TD24-12/630-20C ceramic vacuum arc extinguishing chamber (TD3738AF1)

[Ceramic arc extinguishing chamber]TD34-12/1250-31.5A/R ceramic vacuum arc extinguishing chamber

2026-6-16 14:27:19

TD34-12/1250-31.5A/R ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD34-12/1600-31.5A/R ceramic vacuum arc extinguishing chamber

2026-6-16 14:27:11

TD34-12/1600-31.5A/R ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD34-12/1250-25A/R ceramic vacuum arc extinguishing chamber

2026-6-16 14:27:03

TD34-12/1250-25A/R ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD34-12/630-25A/R ceramic vacuum arc extinguishing chamber

2026-6-16 14:26:53

TD34-12/630-25A/R ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD34-12/3150-40C/R ceramic vacuum arc extinguishing chamber

2026-6-16 14:26:44

TD34-12/3150-40C/R ceramic vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD34-12/4000-40C/R Ceramic vacuum arc extinguishing chamber

2026-6-16 14:26:36

Ceramic vacuum arc extinguishing chamber for TD34-12/4000-40C/R vacuum circuit breaker

[Ceramic arc extinguishing chamber]TD31-12/630-20B/R Ceramic vacuum arc extinguishing chamber

2026-6-16 14:26:28

Ceramic vacuum arc extinguishing chamber for TD31-12/630-20B/R vacuum circuit breaker

[Ceramic arc extinguishing chamber]TD31-12/630-20B Ceramic vacuum arc extinguishing chamber

2026-6-16 14:26:19

Ceramic vacuum arc extinguishing chamber for TD31-12/630-20B vacuum circuit breaker

[Ceramic arc extinguishing chamber]TD32-12/800-13.1 Vacuum arc extinguishing chamber

2026-6-16 14:26:11

TD32-12/800-13.1 Vacuum arc extinguishing chamber for vacuum circuit breakers

[Ceramic arc extinguishing chamber]TD-1.14/5000-12.5 Vacuum arc extinguishing chamber

2026-6-16 14:26:02

TD-1.14/5000-12.5 Vacuum arc extinguishing chamber for vacuum circuit breakers

[Ceramic arc extinguishing chamber]TD-1.14/450-10 Vacuum arc extinguishing chamber

2026-6-16 14:25:54

Vacuum arc extinguishing chamber for TD-1.14/450-10 vacuum circuit breaker

[Ceramic arc extinguishing chamber]TD-1.14/400-8 Vacuum arc extinguishing chamber

2026-6-16 14:25:45

Vacuum arc extinguishing chamber for TD-1.14/400-8 vacuum circuit breaker

[Ceramic arc extinguishing chamber]ZKTJ-7.2/400 Vacuum arc extinguishing chamber

2026-6-16 14:25:37

Vacuum arc extinguishing chamber for ZKTJ-7.2/400 vacuum contactor

[Ceramic arc extinguishing chamber]ZKTJ-7.2/250 vacuum interrupter for vacuum contactor

2026-6-16 14:25:28

ZKTJ-7.2/250 vacuum interrupter for vacuum contactor

[Ceramic arc extinguishing chamber]TJ-12/160 Vacuum arc extinguishing chamber

2026-6-16 14:25:20

Vacuum arc extinguishing chamber for TJ-12/160 vacuum contactor

[Ceramic arc extinguishing chamber]TJ-7.2/630 Vacuum arc extinguishing chamber

2026-6-16 14:25:11

Vacuum arc extinguishing chamber for TJ-7.2/630 vacuum contactor

[Ceramic arc extinguishing chamber]TJ-7.2/160 Vacuum arc extinguishing chamber

2026-6-16 14:25:03

Vacuum arc extinguishing chamber for TJ-7.2/160 vacuum contactor

[Ceramic arc extinguishing chamber]TJ-1.14/1000 Vacuum arc extinguishing chamber

2026-6-16 14:24:54

Vacuum arc extinguishing chamber for TJ-1.14/1000 vacuum contactor

[Ceramic arc extinguishing chamber]TJ-1.14/630 Vacuum arc extinguishing chamber

2026-6-16 14:24:46

Vacuum arc extinguishing chamber for TJ-1.14/630 vacuum contactor

[Ceramic arc extinguishing chamber]TJ-1.14/400 Vacuum arc extinguishing chamber

2026-6-16 14:24:37

Vacuum arc extinguishing chamber for TJ-1.14/400 vacuum contactor

[Ceramic arc extinguishing chamber]TJ-1.14/300 Vacuum arc extinguishing chamber

2026-6-16 14:24:29

Vacuum arc extinguishing chamber for TJ-1.14/300 vacuum contactor

[Ceramic arc extinguishing chamber]TJ-1.14-250 Vacuum arc extinguishing chamber

2026-6-16 14:24:21

Vacuum arc extinguishing chamber for TJ-1.14-250 vacuum contactor

[Ceramic arc extinguishing chamber]TJ-1.14/200 Vacuum arc extinguishing chamber

2026-6-16 14:24:12

Vacuum arc extinguishing chamber for TJ-1.14/200 vacuum contactor

[Ceramic arc extinguishing chamber]TJ-1.14/125(B) Vacuum arc extinguishing chamber

2026-6-16 14:24:04

TJ-1.14/125 (B) Vacuum arc extinguishing chamber for vacuum contactor

[Ceramic arc extinguishing chamber]TJ-1.14/125 (A) Vacuum arc extinguishing chamber

2026-6-16 14:23:55

TJ-1.14/125 (A) Vacuum arc extinguishing chamber for vacuum contactor

[Ceramic arc extinguishing chamber]TD-12/3150-40(310mm) Solid sealed pole arc extinguishing chamber

2026-6-16 14:23:47

TD-12/3150-40 (310mm) Solid Sealing Pole Arc Extinguishing Chamber Solid Sealing Pole 3150-40 Dimensions and Technical Parameters Table

Main technical parameters
serial number	name	unit	Numerical value
one	rated voltage	kV	twelve
two	rated current	A	three thousand one hundred and fifty
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	kV	forty-eight
five	Lightning impulse withstand voltage (peak value)	kV	eighty-five
six	Rated short-circuit breaking current	kA	forty
seven	Rated peak withstand current	kA	one hundred
eight	Rated short-circuit closing current	kA	one hundred
nine	Rated short-time withstand current (4 seconds)	kA	forty
ten	Rated breaking current of a single capacitor bank	A	six hundred and thirty
eleven	Rated back-to-back capacitor bank breaking current	A	four hundred
twelve	Rated short-circuit breaking current breaking times	time	thirty
thirteen	mechanical life	time	ten thousand
fourteen	Circuit resistance under rated contact pressure	�̦�	��10
fifteen	Contact self closing force	N	200±60
sixteen	Contact reaction force at rated opening distance	N	300±60
seventeen	Allowable wear thickness of contacts	mm	three
eighteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10^-3
nineteen	Quality of the sports section	kg
twenty	Allowable storage period	year	twenty
twenty-one	Rated operating sequence	O-180s-CO-180s-CO
Mechanical parameters that the supporting vacuum switch equipment should meet
one	contact gap	mm	11±1
two	Contact stroke of contacts	mm	3.5±0.5
three	Rated contact pressure	N	4200±300
four	Average opening speed	m/s	1.1±0.2
five	Average closing speed	m/s	0.6±0.2
six	Contact closing bounce time	ms	��2
seven	Contact rebound amplitude	mm	��2
eight	Contact closing and opening at different periods	ms	��1

TD-12/3150-40 (310mm) solid sealed pole arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD-12/2000-31.5(275mm) Solid sealed pole arc extinguishing chamber

2026-6-16 14:23:38

Technical parameter table for TD-12/2000-31.5 (275mm) solid sealed pole arc extinguishing chamber

Main technical parameters
serial number	name	unit	Numerical value
one	rated voltage	kV	twelve
two	rated current	A	two thousand
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	kV	forty-eight
five	Lightning impulse withstand voltage (peak value)	kV	eighty-five
six	Rated short-circuit breaking current	kA	thirty-one point five
seven	Rated peak withstand current	kA	eighty
eight	Rated short-circuit closing current	kA	eighty
nine	Rated short-time withstand current (4 seconds)	kA	thirty-one point five
ten	Rated breaking current of a single capacitor bank	A	six hundred and thirty
eleven	Rated back-to-back capacitor bank breaking current	A	four hundred
twelve	Rated short-circuit breaking current breaking times	time	thirty
thirteen	mechanical life	time	ten thousand
fourteen	Circuit resistance under rated contact pressure	�̦�	��12
fifteen	Contact self closing force	N	100±50
sixteen	Contact reaction force at rated opening distance	N	200±50
seventeen	Allowable wear thickness of contacts	mm	three
eighteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10^-3
nineteen	Quality of the sports section	kg
twenty	Allowable storage period	year	twenty
twenty-one	Rated operating sequence	O-0.3s-CO-180s-CO
Mechanical parameters that the supporting vacuum switch equipment should meet
one	contact gap	mm	11±1
two	Contact stroke of contacts	mm	3.5±0.5
three	Rated contact pressure	N	3100±200
four	Average opening speed	m/s	1.1±0.2
five	Average closing speed	m/s	0.6±0.2
six	Contact closing bounce time	ms	��2
seven	Contact rebound amplitude	mm	��2
eight	Contact closing and opening at different periods	ms	��1

TD-12/2000-31.5 (275mm) solid sealed pole arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD-12/1250-31.5(275mm) Solid sealed pole arc extinguishing chamber

2026-6-16 14:23:30

Main technical parameters of TD-12/1250-31.5 (275mm) solid sealed pole arc extinguishing chamber

serial number	parameter name	unit	numerical value
one	rated voltage	KV	twelve
two	rated current	A	one thousand two hundred and fifty
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	KV	forty-two
five	Lightning impulse withstand voltage	KV	seventy-five
six	Rated short-circuit breaking current	KA	thirty-one point five
seven	Rated peak withstand current	KA	eighty
eight	Rated short-circuit closing current	KA	eighty
nine	Rated short-time withstand current	KA	thirty-one point five
ten	Rated short-circuit duration	S	four
eleven	Rated breaking current of a single capacitor bank	A	six hundred and thirty
twelve	Rated back-to-back capacitor bank breaking current	A	four hundred
thirteen	Rated short-circuit breaking current breaking times	time	fifty
fourteen	mechanical life	time	ten thousand
fifteen	Contact self closing force	N	100±50
sixteen	Contact reaction force at rated opening distance	N	200±50
seventeen	Circuit resistance at lower limit of rated contact pressure	��	��25
eighteen	Allowable wear thickness of contacts	mm	three
nineteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10-3
twenty	Quality of the sports section	Kg	<1.2
twenty-one	Quality of vacuum arc extinguishing chamber	Kg	<4

Mechanical characteristics and parameters of vacuum switch equipment for product matching

one	contact gap	mm	11±1
two	Average opening speed	m/s	1.1±0.2
three	Average closing speed	m/s	0.6±0.2
four	Rated contact pressure	N	3100±200
five	Contact closing bounce time	ms	��2
six	Non synchronous closing and opening of contacts	ms	��1
seven	Rebound amplitude of the opening contact	mm	��1.5
eight	Contact stroke of contacts	mm	3+10

TD-12/1250-31.5 (275mm) solid sealed pole arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD-24/3150-40 Solid sealed pole arc extinguishing chamber

2026-6-16 14:23:21

TD-24/3150-40 Solid Sealed Pole Arc Extinguishing Chamber Dimensions and Technical Parameters Table

Main technical parameters
serial number	name	unit	Numerical value
one	rated voltage	kV	twelve
two	rated current	A	three thousand one hundred and fifty
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	kV	forty-eight
five	Lightning impulse withstand voltage (peak value)	kV	eighty-five
six	Rated short-circuit breaking current	kA	forty
seven	Rated peak withstand current	kA	one hundred
eight	Rated short-circuit closing current	kA	one hundred
nine	Rated short-time withstand current (4 seconds)	kA	forty
ten	Rated breaking current of a single capacitor bank	A	six hundred and thirty
eleven	Rated back-to-back capacitor bank breaking current	A	four hundred
twelve	Rated short-circuit breaking current breaking times	time	thirty
thirteen	mechanical life	time	ten thousand
fourteen	Circuit resistance under rated contact pressure	�̦�	��10
fifteen	Contact self closing force	N	200±60
sixteen	Contact reaction force at rated opening distance	N	300±60
seventeen	Allowable wear thickness of contacts	mm	three
eighteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10-3
nineteen	Quality of the sports section	kg
twenty	Allowable storage period	year	twenty
twenty-one	Rated operating sequence	O-180s-CO-180s-CO
Mechanical parameters that the supporting vacuum switch equipment should meet
one	contact gap	mm	11±1
two	Contact stroke of contacts	mm	3.5±0.5
three	Rated contact pressure	N	4200±300
four	Average opening speed	m/s	1.1±0.2
five	Average closing speed	m/s	0.6±0.2
six	Contact closing bounce time	ms	��2
seven	Contact rebound amplitude	mm	��2
eight	Contact closing and opening at different periods	ms	��1

TD-24/3150-40 solid sealed pole arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD-24/2500-31.5(310mm) Solid sealed pole arc extinguishing chamber

2026-6-16 14:23:12

Table of Dimensions and Technical Parameters for Solid Sealed Pole 24kV/2500-31.5KA

Main technical parameters
serial number	name	unit	Numerical value
one	rated voltage	kV	twenty-four
two	rated current	A	two thousand and five hundred
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	kV	forty-eight
five	Lightning impulse withstand voltage (peak value)	kV	eighty-five
six	Rated short-circuit breaking current	kA	thirty-one point five
seven	Rated peak withstand current	kA	eighty
eight	Rated short-circuit closing current	kA	eighty
nine	Rated short-time withstand current (4 seconds)	kA	thirty-one point five
ten	Rated breaking current of a single capacitor bank	A	six hundred and thirty
eleven	Rated back-to-back capacitor bank breaking current	A	four hundred
twelve	Rated short-circuit breaking current breaking times	time	thirty
thirteen	mechanical life	time	ten thousand
fourteen	Circuit resistance under rated contact pressure	�̦�	��10
fifteen	Contact self closing force	N	100±50
sixteen	Contact reaction force at rated opening distance	N	200±50
seventeen	Allowable wear thickness of contacts	mm	three
eighteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10-3
nineteen	Quality of the sports section	kg
twenty	Allowable storage period	year	twenty
twenty-one	Rated operating sequence	O-0.3s-CO-180s-CO
Mechanical parameters that the supporting vacuum switch equipment should meet
one	contact gap	mm	11±1
two	Contact stroke of contacts	mm	3.5±0.5
three	Rated contact pressure	N	3100±200
four	Average opening speed	m/s	1.1±0.2
five	Average closing speed	m/s	0.6±0.2
six	Contact closing bounce time	ms	��2
seven	Contact rebound amplitude	mm	��2
eight	Contact closing and opening at different periods	ms	��1

TD-24/2500-31.5 (310mm) solid sealed pole arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD-24/2000-31.5(310mm) Solid sealed pole arc extinguishing chamber

2026-6-16 14:23:04

Table of Dimensions and Technical Parameters for Sealed Pole 2000-31.5KA

Main technical parameters
serial number	name	unit	Numerical value	Remarks
one	rated voltage	kV	twelve
two	rated current	A	two thousand
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	kV	forty-eight
five	Lightning impulse withstand voltage (peak value)	kV	eighty-five
six	Rated short-circuit breaking current	kA	thirty-one point five
seven	Rated peak withstand current	kA	eighty
eight	Rated short-circuit closing current	kA	eighty
nine	Rated short-time withstand current (4 seconds)	kA	thirty-one point five
ten	Rated breaking current of a single capacitor bank	A	six hundred and thirty
eleven	Rated back-to-back capacitor bank breaking current	A	four hundred
twelve	Rated short-circuit breaking current breaking times	time	thirty
thirteen	mechanical life	time	ten thousand
fourteen	Circuit resistance under rated contact pressure	�̦�	��12
fifteen	Contact self closing force	N	100±50
sixteen	Contact reaction force at rated opening distance	N	200±50
seventeen	Allowable wear thickness of contacts	mm	three
eighteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10-3
nineteen	Quality of the sports section	kg
twenty	Allowable storage period	year	twenty
twenty-one	Rated operating sequence	O-0.3s-CO-180s-CO
Mechanical parameters that the supporting vacuum switch equipment should meet
one	contact gap	mm	11±1
two	Contact stroke of contacts	mm	3.5±0.5
three	Rated contact pressure	N	3100±200
four	Average opening speed	m/s	1.1±0.2
five	Average closing speed	m/s	0.6±0.2
six	Contact closing bounce time	ms	��2
seven	Contact rebound amplitude	mm	��2
eight	Contact closing and opening at different periods	ms	��1

TD-24/2000-31.5 (310mm) solid sealed pole arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD-24/1600-31.5(310mm) Solid sealed pole arc extinguishing chamber

2026-6-16 14:22:55

TD-24/1600-31.5 (310mm) solid sealed pole arc extinguishing chamber

Table of Dimensions and Technical Parameters for Solid Sealed Pole 24kV/1600-31.5KA

Main technical parameters
serial number	name	unit	Numerical value	Remarks
one	rated voltage	kV	twenty-four
two	rated current	A	one thousand and six hundred
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	kV	forty-eight
five	Lightning impulse withstand voltage (peak value)	kV	eighty-five
six	Rated short-circuit breaking current	kA	thirty-one point five
seven	Rated peak withstand current	kA	eighty
eight	Rated short-circuit closing current	kA	eighty
nine	Rated short-time withstand current (4 seconds)	kA	thirty-one point five
ten	Rated breaking current of a single capacitor bank	A	six hundred and thirty
eleven	Rated back-to-back capacitor bank breaking current	A	four hundred
twelve	Rated short-circuit breaking current breaking times	time	thirty
thirteen	mechanical life	time	ten thousand
fourteen	Circuit resistance under rated contact pressure	�̦�	��16
fifteen	Contact self closing force	N	100±50
sixteen	Contact reaction force at rated opening distance	N	200±50
seventeen	Allowable wear thickness of contacts	mm	three
eighteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10-3
nineteen	Quality of the sports section	kg
twenty	Allowable storage period	year	twenty
twenty-one	Rated operating sequence	O-0.3s-CO-180s-CO
Mechanical parameters that the supporting vacuum switch equipment should meet
one	contact gap	mm	11±1
two	Contact stroke of contacts	mm	3.5±0.5
three	Rated contact pressure	N	3100±200
four	Average opening speed	m/s	1.1±0.2
five	Average closing speed	m/s	0.6±0.2
six	Contact closing bounce time	ms	��2
seven	Contact rebound amplitude	mm	��2
eight	Contact closing and opening at different periods	ms	��1

TD-24/1600-31.5 (310mm) solid sealed pole arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD-12/1250-31.5(205mm) Solid sealed pole arc extinguishing chamber

2026-6-16 14:22:46

Main technical parameters of TD-12/1250-31.5 (205mm) solid sealed pole arc extinguishing chamber

serial number	parameter name	unit	numerical value
one	rated voltage	KV	twelve
two	rated current	A	one thousand two hundred and fifty
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	KV	forty-two
five	Lightning impulse withstand voltage	KV	seventy-five
six	Rated short-circuit breaking current	KA	thirty-one point five
seven	Rated peak withstand current	KA	eighty
eight	Rated short-circuit closing current	KA	eighty
nine	Rated short-time withstand current	KA	thirty-one point five
ten	Rated short-circuit duration	S	four
eleven	Rated breaking current of a single capacitor bank	A	six hundred and thirty
twelve	Rated back-to-back capacitor bank breaking current	A	four hundred
thirteen	Rated short-circuit breaking current breaking times	time	fifty
fourteen	mechanical life	time	ten thousand
fifteen	Contact self closing force	N	100±50
sixteen	Contact reaction force at rated opening distance	N	200±50
seventeen	Circuit resistance at lower limit of rated contact pressure	��	��25
eighteen	Allowable wear thickness of contacts	mm	three
nineteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10^-3
twenty	Quality of the sports section	Kg	<1.2
twenty-one	Quality of vacuum arc extinguishing chamber	Kg	<4

Mechanical characteristics and parameters of vacuum switch equipment for TD-12/1250-31.5 (205mm) solid sealed pole arc extinguishing chamber

one	contact gap	mm	11±1
two	Average opening speed	m/s	1.1±0.2
three	Average closing speed	m/s	0.6±0.2
four	Rated contact pressure	N	3100±200
five	Contact closing bounce time	ms	��2
six	Non synchronous closing and opening of contacts	ms	��1
seven	Rebound amplitude of the opening contact	mm	��1.5
eight	Contact stroke of contacts	mm	three⁺¹₀

TD-12/1250-31.5 (205mm) solid sealed pole arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD-24/1250-31.5 Vacuum arc extinguishing chamber

2026-6-16 14:22:37

Main technical parameters of vacuum arc extinguishing chamber for TD-24/1250-31.5 circuit breaker

serial number	name	unit	Numerical value
one	rated voltage	kV	twenty-four
two	rated current	A	one thousand two hundred and fifty
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	kV	seventy-nine
five	Lightning impulse withstand voltage (peak value)	kV	one hundred and forty-five
six	Rated short-circuit breaking current	kA	thirty-one point five
seven	Rated peak withstand current	kA	eighty
eight	Rated short-circuit closing current	kA	eighty
nine	Rated short-time withstand current (4 seconds)	kA	thirty-one point five
ten	Rated short-circuit duration	s	four
eleven	Rated short-circuit breaking current breaking times	time	thirty
twelve	mechanical life	time	ten thousand
thirteen	Contact self closing force	N	110±40
fourteen	Contact reaction force at rated opening distance	N	190±40
fifteen	Allowable wear thickness of contacts	mm	three
sixteen	Circuit resistance under rated contact pressure	�̦�	��20
seventeen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10^-3
eighteen	Quality of the sports section	kg	one point two nine

Mechanical parameters of supporting vacuum switch

one	contact gap	mm	13±1
two	Average opening speed	m/s	1.4±0.2
three	Average closing speed	m/s	0.8±0.2
four	Contact closing bounce time	ms	��2
five	Rated contact pressure	N	3000±200
six	Contact closing and opening at different periods	ms	��1
seven	Contact rebound amplitude	mm	��1.5

Vacuum arc extinguishing chamber for TD-24/1250-31.5 circuit breaker

[Ceramic arc extinguishing chamber]TD-24/1600-31.5 Vacuum arc extinguishing chamber

2026-6-16 14:22:29

Main technical parameters of vacuum arc extinguishing chamber for TD-24/1600-31.5 circuit breaker

serial number	name	unit	Numerical value
one	rated voltage	kV	twenty-four
two	rated current	A	one thousand and six hundred
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	kV	seventy-nine
five	Lightning impulse withstand voltage (peak value)	kV	one hundred and forty-five
six	Rated short-circuit breaking current	kA	thirty-one point five
seven	Rated peak withstand current	kA	eighty
eight	Rated short-circuit closing current	kA	eighty
nine	Rated short-time withstand current (4 seconds)	kA	thirty-one point five
ten	Rated short-circuit duration	s	four
eleven	Rated short-circuit breaking current breaking times	time	thirty
twelve	mechanical life	time	ten thousand
thirteen	Contact self closing force	N	110±40
fourteen	Contact reaction force at rated opening distance	N	190±40
fifteen	Allowable wear thickness of contacts	mm	three
sixteen	Circuit resistance under rated contact pressure	�̦�	��20
seventeen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10^-3
eighteen	Quality of the sports section	kg	one point two nine

Mechanical parameters of supporting vacuum switch

one	contact gap	mm	13±1
two	Average opening speed	m/s	1.4±0.2
three	Average closing speed	m/s	0.8±0.2
four	Contact closing bounce time	ms	��2
five	Rated contact pressure	N	3000±200
six	Contact closing and opening at different periods	ms	��1
seven	Contact rebound amplitude	mm	��1.5

Vacuum arc extinguishing chamber for TD-24/1600-31.5 circuit breaker

[Ceramic arc extinguishing chamber]TD-24/2000, TD-24/2500-31.5 Vacuum arc extinguishing chamber

2026-6-16 14:22:20

Main technical parameters of vacuum arc extinguishing chambers for TD-24/2000, TD-24/2500-31.5 circuit breakers

serial number	name	unit	Numerical value
one	rated voltage	kV	twenty-four
two	rated current	A	2000/2500
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	kV	sixty-five
five	Lightning impulse withstand voltage (peak value)	kV	eighty-five
six	Rated short-circuit breaking current	kA	forty
seven	Rated peak withstand current	kA	eighty
eight	Rated short-circuit closing current	kA	eighty
nine	Rated short-time withstand current (4 seconds)	kA	thirty-one point five
ten	Rated short-circuit duration	s	four
eleven	Rated breaking current of a single capacitor bank	A	six hundred and thirty
twelve	Rated back-to-back capacitor bank breaking current	A	four hundred
thirteen	Rated short-circuit breaking current breaking times	time	thirty
fourteen	mechanical life	time	ten thousand
fifteen	Circuit resistance under rated contact pressure	�̦�	��15
sixteen	Contact self closing force	N	200±60
seventeen	Contact reaction force at rated opening distance	N	300±60
eighteen	Allowable wear thickness of contacts	mm	three
nineteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10^-3
twenty	Quality of the sports section	kg	one point two

Mechanical parameters of supporting vacuum switch

one	contact gap	mm	10±1.0
two	Average opening speed	m/s	1.2±0.2
three	Average closing speed	m/s	0.7±0.2
four	Contact closing bounce time	ms	��2
five	Rated contact pressure	N	4200±200
six	Contact closing and opening at different periods	ms	��1
seven	Contact rebound amplitude	mm	��1.5
eight	Contact stroke of contacts	mm	3+^one₀

Vacuum arc extinguishing chamber for circuit breakers TD-24/2000, TD-24/2500-31.5

[Ceramic arc extinguishing chamber]TD-40.5/2000,TD-40.5/1600-31.5 Vacuum arc extinguishing chamber

2026-6-16 14:22:12

Main technical parameters

serial number	parameter name	unit	numerical value
one	rated voltage	KV	forty point five
two	rated current	A	1600/2000
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	KV	ninety-five
five	Lightning impulse withstand voltage	KV	one hundred and eighty-five
six	Rated short-time withstand current	KA	thirty-one point five
seven	Rated peak withstand current	KA	eighty
eight	Rated short-circuit closing current	KA	eighty
nine	Rated short-time withstand current	KA	thirty-one point five
ten	Rated short-circuit duration	S	four
eleven	Rated Active load breaking current	A	six hundred and thirty
twelve	Rated back-to-back capacitor bank breaking current	A	four hundred
thirteen	Rated short-circuit breaking current breaking times	time	twenty
fourteen	mechanical life	time	ten thousand
fifteen	Contact self closing force	N	200±60
sixteen	Contact reaction force at rated opening distance	N	300±60
seventeen	Circuit resistance at lower limit of rated contact pressure	��	��25
eighteen	Allowable wear thickness of contacts	mm	three
nineteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10^-3
twenty	Quality of the sports section	Kg	three point six

Mechanical characteristics and parameters of vacuum switch equipment for product matching

one	contact gap	mm	20±1
two	Average opening speed	m/s	1.7±0.2
three	Average closing speed	m/s	0.75±0.2
four	Rated contact pressure	N	3000±200
five	Contact closing bounce time	ms	��3
six	Non synchronous closing and opening of contacts	ms	��2
seven	Rebound amplitude of the opening contact	mm	��1

TD-40.5/2000-31.5 vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TF-12/630-20 Vacuum arc extinguishing chamber

2026-6-16 14:22:03

Main technical parameters of vacuum arc extinguishing chamber for TF-12/630-20 load switch

serial number	parameter name	unit	numerical value
one	rated voltage	KV	twelve
two	rated current	A	six hundred and thirty
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	KV	forty-two
five	Lightning impulse withstand voltage	KV	seventy-five
six	Rated short-time withstand current	KA	twenty
seven	Rated short-circuit duration	S	four
eight	Rated peak withstand current	KA	fifty
nine	Rated short-circuit closing current	KA	fifty
ten	Rated Active load breaking current	A	six hundred and thirty
eleven	Transfer current (AC current)	KA	three point one five
twelve	Rated closed-loop breaking current	A	six hundred and thirty
thirteen	Rated cable charging breaking current	A	ten
fourteen	Rated no-load transformer breaking current	A	one hundred
fifteen	Rated breaking current of a single capacitor bank	A	five hundred
sixteen	Rated back-to-back capacitor bank breaking current	A	four hundred
seventeen	mechanical life	time	ten thousand
eighteen	Contact self closing force	N	80±30
nineteen	Contact reaction force at rated opening distance	N	140±40
twenty	Circuit resistance at lower limit of rated contact pressure	��	��35
twenty-one	Allowable wear thickness of contacts	mm	three
twenty-two	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10^-3
twenty-three	Quality of the sports section	Kg	zero point six
twenty-four	Quality of vacuum arc extinguishing chamber	Kg	two point one

Mechanical characteristics and parameters of vacuum switch equipment for product matching

one	contact gap	mm	10±1
two	Average opening speed	m/s	1.0±0.2
three	Average closing speed	m/s	0.6±0.2
four	Rated contact pressure	N	1000±200
five	Contact closing bounce time	ms	��2
six	Non synchronous closing and opening of contacts	ms	��1
seven	Rebound amplitude of the opening contact	mm	��1.5
eight	Contact stroke of contacts	mm	three⁺¹₀

Vacuum arc extinguishing chamber for TF-12/630-20 load switch

[Ceramic arc extinguishing chamber]TJC-7.2/630-6 Vacuum arc extinguishing chamber

2026-6-16 14:21:55

Main technical parameters

serial number	parameter name	unit	numerical value
one	rated voltage	KV	seven point two
two	rated current	A	six hundred and thirty
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	KV	thirty-two
five	Rated breaking current (maximum/minimum)	KA	5.0/0.12
six	Maximum breaking current	KA	six point three
seven	Rated turn-on current	KA	six point three
eight	Withstand overload current	KA	six point three
nine	electrical life	ten thousand times	25 (AC-3 category)
nine	electrical life	ten thousand times	1 (AC-4 category)
ten	mechanical life	ten thousand times	thirty
eleven	Contact self closing force	N	85±20
twelve	Contact reaction force at rated opening distance	N	130±20
thirteen	Circuit resistance under self isolation	��	��100
fourteen	Allowable wear thickness of contacts	mm	two
fifteen	Internal gas pressure	Pa	��1.33×10^-3
sixteen	Quality of the sports section	Kg	zero point four

Mechanical characteristics and parameters of vacuum switch equipment for product matching

one	contact gap	mm	4±0.5
two	Average opening speed	m/s	0.45±0.05
three	Average closing speed	m/s	0.25±0.05
four	Rated contact pressure	N	100±20
five	Contact closing bounce time	ms	��2
six	Three phase synchronicity	ms	��1
seven	Contact stroke of contacts	mm	one point five^+0.5₀

TJC-7.2/630-6 vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]TD-7.2/630-12.5 Vacuum arc extinguishing chamber

2026-6-16 14:21:46

Main technical parameters of TD-7.2/630-12.5 vacuum arc extinguishing chamber

serial number	parameter name	unit	numerical value
one	rated voltage	KV	seven point two
two	rated current	A	six hundred and thirty
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	KV	thirty-two
five	Lightning impulse withstand voltage (peak value)	KV	sixty
six	Rated short-circuit breaking current	KA	twelve point five
seven	Rated short-time withstand current	KA	twelve point five eight
eight	Rated short-circuit duration	S	four
nine	Rated peak withstand current	KA	thirty-one point five
ten	Rated short-circuit closing current	KA	thirty-one point five
eleven	Rated breaking current of a single capacitor bank	A	six hundred and thirty
twelve	Rated back-to-back capacitor bank breaking current	A	four hundred
thirteen	Rated short-circuit breaking current breaking times	time	thirty
fourteen	mechanical life	time	ten thousand
fifteen	Contact self closing force	N	80±20
sixteen	Contact reaction force	N	100±40
seventeen	Circuit resistance at lower limit of rated contact pressure	��	��100
eighteen	Allowable wear thickness of contacts	mm	three
nineteen	Internal gas pressure	Pa	��1.33×10-3
twenty	Quality of moving parts	kg	zero point six

Mechanical characteristics and parameters of vacuum switch equipment for TD-7.2/630-12.5 vacuum arc extinguishing chamber

one	contact gap	mm	8±1.0
two	Average opening speed	m/s	1.0±0.2
three	Average closing speed	m/s	0.7±0.2
four	Contact closing bounce time	N	��2
five	Non synchronous closing and opening of contacts	ms	��1
six	Rebound amplitude of the opening contact	ms	��1.5
seven	Rated contact pressure	mm	1500±200
eight	Contact stroke of contacts	mm	2+10

[Ceramic arc extinguishing chamber]TD-7.2/400-10 Vacuum arc extinguishing chamber for circuit breakers (mining)

2026-6-16 14:21:38

Main technical parameters of vacuum arc extinguishing chamber for TD-7.2-400-10 circuit breaker (mining)

serial number	parameter name	unit	numerical value
one	rated voltage	KV	seven point two
two	rated current	A	four hundred
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	KV	thirty-two
five	Lightning impulse withstand voltage (peak value)	KV	sixty
six	Rated short-circuit breaking current	KA	ten
seven	Rated short-time withstand current	KA	ten
eight	Rated short-circuit duration	S	four
nine	Rated peak withstand current	KA	twenty-five
ten	Rated short-circuit closing current	KA	twenty-five
eleven	Rated breaking current of a single capacitor bank	A	six hundred and thirty
twelve	Rated back-to-back capacitor bank breaking current	A	four hundred
thirteen	Rated short-circuit breaking current breaking times	time	thirty
fourteen	mechanical life	time	ten thousand
fifteen	Contact self closing force	N	85±20
sixteen	Contact reaction force	N	100±40
seventeen	Circuit resistance at lower limit of rated contact pressure	��	��30
eighteen	Allowable wear thickness of contacts	mm	three
nineteen	Internal gas pressure	Pa	��1.33×10^-3
twenty	Quality of moving parts	kg	zero point six

Mechanical characteristics and parameters of vacuum switch equipment for product matching

one	contact gap	mm	8±1.0
two	Average opening speed	m/s	1.0±0.2
three	Average closing speed	m/s	0.8±0.2
four	Rated contact pressure	N	650±50
five	Contact closing bounce time	ms	��2
six	Rebound amplitude of the opening contact	ms	��1.5
seven	Contact stroke of contacts	mm	two^+0.5₀

TD-7.2-400-10 vacuum arc extinguishing chamber for circuit breakers (mining)

[Ceramic arc extinguishing chamber]TD-12/4000-40 Vacuum arc extinguishing chamber

2026-6-16 14:21:29

Main technical parameters of vacuum arc extinguishing chamber for TD-12/4000-40 circuit breaker (ZN63, ZN28)

serial number	parameter name	unit	numerical value
one	rated voltage	KV	twelve
two	rated current	A	4000
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	KV	forty-eight
five	Lightning impulse withstand voltage	KV	eighty-five
six	Rated short-circuit breaking current	KA	forty
seven	Rated peak withstand current	KA	one hundred
eight	Rated short-circuit closing current	KA	one hundred
nine	Rated short-time withstand current	KA	forty
ten	Rated short-circuit duration	S	four
eleven	Rated breaking current of a single capacitor bank	A	six hundred and thirty
twelve	Rated back-to-back capacitor bank breaking current	A	four hundred
thirteen	Rated short-circuit breaking current breaking times	time	thirty
fourteen	mechanical life	time	ten thousand
fifteen	Contact self closing force	N	200±60
sixteen	Contact reaction force at rated opening distance	N	300±60
seventeen	Circuit resistance at lower limit of rated contact pressure	��	��15
eighteen	Allowable wear thickness of contacts	mm	three
nineteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10-3
twenty	Quality of the sports section	Kg	one point two

Mechanical characteristics and parameters of vacuum switchgear equipment for vacuum arc extinguishing chambers (ZN63, ZN28) used in TD-12/4000-40 circuit breakers

one	contact gap	mm	10±1.0
two	Average opening speed	m/s	1.2±0.2
three	Average closing speed	m/s	0.7±0.2
four	Rated contact pressure	N	4200±200
five	Contact closing bounce time	ms	��2
six	Non synchronous closing and opening of contacts	ms	��1
seven	Rebound amplitude of the opening contact	mm	��1.5
eight	Contact stroke of contacts	mm	3+1 0

Vacuum arc extinguishing chamber for TD-12/4000-40 circuit breaker (ZN63, ZN28)

[Ceramic arc extinguishing chamber]ZN63,ZN28) Vacuum arc extinguishing chamber for circuit breakers

2026-6-16 14:21:21

Main technical parameters of vacuum arc extinguishing chamber for TD-12/3150-40 circuit breaker (ZN63, ZN28)

serial number	parameter name	unit	numerical value
one	rated voltage	KV	twelve
two	rated current	A	2500/3150
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	KV	forty-eight
five	Lightning impulse withstand voltage	KV	eighty-five
six	Rated short-circuit breaking current	KA	forty
seven	Rated peak withstand current	KA	one hundred
eight	Rated short-circuit closing current	KA	one hundred
nine	Rated short-time withstand current	KA	forty
ten	Rated short-circuit duration	S	four
eleven	Rated breaking current of a single capacitor bank	A	six hundred and thirty
twelve	Rated back-to-back capacitor bank breaking current	A	four hundred
thirteen	Rated short-circuit breaking current breaking times	time	thirty
fourteen	mechanical life	time	ten thousand
fifteen	Contact self closing force	N	200±60
sixteen	Contact reaction force at rated opening distance	N	300±60
seventeen	Circuit resistance at lower limit of rated contact pressure	��	��15
eighteen	Allowable wear thickness of contacts	mm	three
nineteen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10^-3
twenty	Quality of the sports section	Kg	one point two

Mechanical characteristics and parameters of vacuum switchgear equipment for vacuum arc extinguishing chambers (ZN63, ZN28) used in TD-12/3150-40 circuit breakers

one	contact gap	mm	10±1.0
two	Average opening speed	m/s	1.2±0.2
three	Average closing speed	m/s	0.7±0.2
four	Rated contact pressure	N	4200±200
five	Contact closing bounce time	ms	��2
six	Non synchronous closing and opening of contacts	ms	��1
seven	Rebound amplitude of the opening contact	mm	��1.5
eight	Contact stroke of contacts	mm	three⁺¹₀

Vacuum arc extinguishing chamber for TD-12/3150-40 circuit breaker (ZN63, ZN28)

[Ceramic arc extinguishing chamber]TD-12/1250-40, TD-12/1600-40 Vacuum arc extinguishing chamber

2026-6-16 14:21:12

Main technical parameters of vacuum arc extinguishing chambers for circuit breakers TD-12/1250-40 and TD-12/1600-40

serial number	name	unit	Numerical value
one	rated voltage	kV	twelve
two	rated current	A	1250/1600
three	rated frequency	HZ	fifty
four	Short term (1-minute) power frequency withstand voltage	kV	forty-eight
five	Lightning impulse withstand voltage (peak value)	kV	eighty-five
six	Rated short-circuit breaking current	kA	forty
seven	Rated peak withstand current	kA	one hundred
eight	Rated short-circuit closing current	kA	one hundred
nine	Rated short-time withstand current (4 seconds)	kA	forty
ten	Rated short-circuit duration	s	four
eleven	Rated short-circuit breaking current breaking times	time	thirty
twelve	mechanical life	time	ten thousand
thirteen	Circuit resistance under rated contact pressure	�̦�	��15
fourteen	Contact self closing force	N	100±50
fifteen	Contact reaction force at rated opening distance	N	200±50
sixteen	Allowable wear thickness of contacts	mm	three
seventeen	Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1.33×10^-3
eighteen	Quality of the sports section	kg	one point two

Mechanical parameters of supporting vacuum switch

contact gap	mm	10±1
two	Average opening speed	m/s	1.1±0.2
three	Average closing speed	m/s	0.6±0.2
four	Contact closing bounce time	ms	��2
five	Rated contact pressure	N	4300±300
six	Contact closing and opening at different periods	ms	��1
seven	Contact rebound amplitude	mm	��1.5

Vacuum arc extinguishing chamber for circuit breakers TD-12/1250-40, TD-12/1600-40

[Ceramic arc extinguishing chamber]TJC-12/630 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:21:04

Overview
The arc extinguishing chamber adopts corrugated ceramic as the insulation shell, and the contacts are made of copper tungsten carbide alloy material. It adopts advanced one-time sealing and discharging technology, which has the advantages of small volume, high insulation level, low current cutoff value, long service life, simple maintenance, no explosion hazard, no pollution, and low noise. The contactor assembled with it can frequently operate various electrical equipment, and when combined with fuses, it can form an F-C cabinet. Product Description

Main technical parameters

Parameter name	Unit Unit	Numerical Value
Rated voltage	kV	twelve
Rated normal current	A	six hundred and thirty
Rated frequency	Hz	fifty
Rated put through current	kA	six point three
Rated breaking current	kA	five point zero four
Limiting breaking current	kA	six point three
Rated short-time withstand current voltage	kA	six point three
Rated short-time (1min) power frequency withstand voltage Rated short time power frequency withstand voltage (1min)	kV	forty-two
Rated lightning impulse voltage Rated lighting impulse voltage	kV	seventy-five
Circuit resistance under contact self closing force Contact automatic blocking ability loop electrical resistance	�̦�	��100
Electricity life	Ten thousand times	twenty-five
Mechanical endurance	Ten thousand times	fifty
Closing force due to bellows and atmosphere	N	70±30
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke	N	100±40
Contact wear allowance thickness	mm	three
Internal gas pressure	Pa	��1.33×10��^three
Allow storage period	Year of Year	twenty

Cooperate with the mechanical parameters of the contactor

Project	Unit Unit	Numerical Value
Contact stroke distance	mm	6±1
Contact travel	mm	2±0.5
Average closing speed Average closing speed	m/s	0.3±0.1
Average opening speed	m/s	0.6±0.2
Rated contact pressure Rated contact pressure	N	100±20
Contact closing bounce time Contact closeting bounce time	ms	��2
Synchronization of closing Closing same period	ms	��1

Ceramic vacuum arc extinguishing chamber for TJC-12/630 contactor

[Ceramic arc extinguishing chamber]TD-12/630-12.5 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:20:55

Overview
The ceramic vacuum arc extinguishing chamber for TD-12/630-12.5 circuit breaker adopts corrugated ceramic as the insulation shell, with CuCr50 alloy contacts and cup-shaped longitudinal magnetic structure. It has the characteristics of large current interruption, high insulation level, strong arc extinguishing ability, long service life, small size, simple maintenance, no explosion hazard, no pollution, low noise, etc. The outdoor vacuum circuit breaker assembled with it is used for control and protection in the transmission and distribution systems of power, machinery, chemical, metallurgical, mining, railway and other departments, and is suitable for places with frequent operations.

Explanation of Ceramic Vacuum Arc Extinguishing Chamber for TD-12/630-12.5 Circuit Breaker

parameter name Parameter name	unit Unit	numerical value Value
Rated voltage	kV	twelve
Rated current	A	six hundred and thirty
Rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage Short time power frequency withstand voltage (1min)	kV	forty-two
Lightning impulse withstand voltage	kV	seventy-five
Rated short circuit breaking current	kA	twelve point five
Rated peak withstand current	kA	thirty-one point five
Rated short circuit making current	kA	thirty-one point five
Rated short time withstand current	kA	twelve point five
Rated duration of short circuit	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current Rated breaking current of back to back capacitor bank	A	four hundred
Rated short circuit breaking current times	Next time	thirty
Mechanical endurance	time	ten thousand
Closing force due to bellows and atmosphere	N	60±30
Force required to hold contacts open at full stroke at rated opening distance	N	160±30
Circuit resistance at lower limit of rated contact force	�̦�	��35
Contact limit abrasion	mm	three
Gas pressure inside vacuum interrupter	Pa	��1.33×10��^three
Weight of moving parts	kg	zero point three five
Weight of vacuum interrupter	kg	one point two

Mechanical parameters for using circuit breakers

Clearance between open contacts	mm	8±1
Average opening speed	m/s	1.2±0.2
Average closing speed	m/s	0.8±0.2
Rated contact force	N	1200±200
Contact bounce duration at closing operation	ms	��2
Out of simultaneity of contact closing and opening	ms	��2
Bouncing back amplitude of opening contact	mm	��2

Ceramic vacuum arc extinguishing chamber for TD-12/630-12.5 circuit breaker

[Ceramic arc extinguishing chamber]TD-40.5/1600-25 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:20:47

The ceramic vacuum arc extinguishing chamber for TD-40.5/1600-25 circuit breaker adopts corrugated ceramic as the insulation shell, with CuCr50 alloy contacts and cup-shaped longitudinal magnetic structure. It has the characteristics of large current interruption, high insulation level, strong arc extinguishing ability, long service life, small size, simple maintenance, no explosion hazard, no pollution, and low noise. Indoor vacuum circuit breakers assembled with it are used for control and protection in power transmission and distribution systems such as industrial and mining, enterprises, and substations. Product Description

Main technical parameters of ceramic vacuum arc extinguishing chamber for TD-40.5/1600-25 circuit breaker

Parameter Name Parameter name	unit Unit	numerical value Value
rated voltage Rated voltage	kV	forty point five
rated current Rated normal current	A	one thousand and six hundred
Rated short-circuit breaking current Rated short-circuit breaking current	kA	twenty-five
Rated short-circuit closing current Rated short-circuit making current	kA	sixty-three
Rated peak withstand current Rated peak withstand current	kA	sixty-three
Rated short-time withstand current Rated short-time withstand current	kA	twenty-five
Rated short-circuit duration Rated duration of short circuit	S	four
Rated breaking current of a single capacitor bank Rated single capacitor unit breaking current	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current Rated back to back capacitor unit breaking current	A	four hundred
Rated short-time (1min) power frequency withstand voltage Rated short time power frequency withstand voltage (1min)	kV	ninety-five
Circuit resistance under rated contact pressure Circuit resistance at lower limit of rated contact pressure	�̦�	��25
Rated short-circuit breaking current breaking times Rated short circuit breaking current breaking times	time Time	thirty
Rated lightning impulse withstand voltage Rated lightning impulse withstand voltage	kV	one hundred and eighty-five
mechanical life Mechanical endurance	time Time	ten thousand
Contact self closing force Closing force due to bellow and atmosphere	N	200±50
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke	N	300±50
Allowable wear thickness of contacts Contact-wear allowance thickness	mm	three
Internal gas pressure Internal gas pressure	Pa	��1.33×10��^three
Allowable storage period Storage period	year Year	twenty

Mechanical parameters for using circuit breakers

project Project	unit Unit	numerical value Value
contact gap Contact stroke	mm	22±1
Contact stroke of contacts Contact travel	mm	8±1
Average closing speed Average closing speed	m/s	0.6±0.2
Average opening speed Average opening speed	m/s	1.4±0.2
Rated contact pressure Rated contact pressure	N	2800±200
Contact closing bounce time Contact closing bounce time	ms	��5
Non synchronous closing and opening of contacts Out of simultaneity of contact closing and opening	ms	��2
Rebound amplitude of the opening contact Bouncing back amplitude of opening contact	mm	��2

Ceramic vacuum arc extinguishing chamber for TD-40.5/1600-25 circuit breaker

[Ceramic arc extinguishing chamber]TD-12/630-25 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:20:38

Overview
The arc extinguishing chamber adopts corrugated ceramic as the insulation shell, with CuCr50 alloy contacts and cup-shaped longitudinal magnetic structure. It has the characteristics of large current interruption, high insulation level, strong arc extinguishing ability, long service life, small volume, simple maintenance, no explosion hazard, no pollution, and low noise. The outdoor vacuum circuit breaker assembled with it is used for control and protection in the transmission and distribution systems of power, machinery, chemical, metallurgical, mining, railway and other departments, and is suitable for places with frequent operations. Product Description

Main technical parameters

Parameter name	Unit Unit	Numerical Value
Rated voltage	kV	twelve
Rated current	A	six hundred and thirty
Rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage Short time power frequency withstand voltage (1min)	kV	forty-two
Lightning impulse withstand voltage	kV	seventy-five
Rated short circuit breaking current	kA	twenty-five
Rated peak withstand current	kA	sixty-three
Rated short circuit making current	kA	sixty-three
Rated short time withstand current	kA	twenty-five
Rated duration of short circuit	S	four
Rated breaking current of a single capacitor bank Rated breaking current of single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current Rated breaking current of back to back capacitor bank	A	four hundred
Rated short-circuit breaking current times Rated short circuit breaking current	Next time	thirty
mechanical life Mechanical endurance	Next time	ten thousand
Contact self closing force Closing force due to bellow and atmosphere	N	140±50
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke	N	230±50
Circuit resistance at lower limit of rated contact pressure Circuit resistance at lower limit of rated contact force	�̦�	��25
Allowable wear thickness of contacts Contact limit erosion	mm	three
Gas pressure inside the vacuum arc extinguishing chamber Gas pressure inside vacuum interrupter	Pa	��1.33×10��^three
Quality of the sports section Weight of moving parts	kg	one point three
Quality of vacuum arc extinguishing chamber Weight of vacuum interrupter	kg	four point two

Mechanical parameters for using circuit breakers

Clearance between open contacts	mm	11±1
Average opening speed	m/s	1.1±0.2
Average closing speed	m/s	0.6±0.2
Rated contact force	N	2000±200
Contact closing bounce time Contact bouncing duration at closing operation	ms	��2
Non synchronous closing and opening of contacts Out of simultaneity of contact closing and opening	ms	��2
Rebound amplitude of the opening contact Bouncing back amplitude of opening contact	mm	��3

Ceramic vacuum arc extinguishing chamber for TD-12/630-25 circuit breaker

[Ceramic arc extinguishing chamber]TJC-7.2/630B Ceramic vacuum arc extinguishing chamber

2026-6-16 14:20:30

Overview
The TJC-7.2/630B contactor uses a ceramic vacuum arc extinguishing chamber with a corrugated ceramic insulation shell and copper tungsten carbide alloy contacts. It adopts advanced one-time sealing technology and has the advantages of small volume, high insulation level, low current cutoff value, long service life, simple maintenance, no explosion hazard, no pollution, and low noise. The contactor assembled with it can frequently operate various electrical equipment, and when combined with fuses, it can form an F-C cabinet.

Main technical parameters of ceramic vacuum arc extinguishing chamber for TJC-7.2/630B contactor

Parameter name	Unit Unit	Numerical Value
Rated voltage	kV	seven point two
Rated normal current	A	six hundred and thirty
Rated frequency	Hz	fifty
Rated put through current	kA	six point three
Rated breaking current	kA	five point zero four
Limiting breaking current	kA	six point three
Rated short-time withstand current Rated short-time withstand current	kA	six point three
Rated short-time (1min) power frequency withstand voltage Rated short time power frequency withstand voltage (1min)	kV	thirty-two
Rated lightning impulse voltage Rated lighting impulse voltage	kV	sixty
Circuit resistance under contact self closing force Contact automatic blocking ability loop electrical resistance	�̦�	��100
Electricity life	Ten thousand times	twenty-five
Mechanical endurance	Ten thousand times	fifty
Closing force due to bellows and atmosphere	N	70±20
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke	N	100±20
Allowable wear thickness of contacts Contact -wear allowance thickness	mm	three
Internal gas pressure	Pa	��1.33×10��^three
Allow storage period	Year of Year	twenty

Cooperate with the mechanical parameters of the contactor

Project	Unit Unit	Numerical Value
Contact stroke distance	mm	6±1
Contact travel	mm	2±0.5
Average closing speed	m/s	0.3±0.1
Average opening speed Average opening speed	m/s	0.6±0.2
Rated contact pressure Rated contact pressure	N	100±20
Contact closing bounce time Contact closeting bounce time	ms	��2
Closing Same Period	ms	��1

Ceramic vacuum arc extinguishing chamber for TJC-7.2/630B contactor

[Ceramic arc extinguishing chamber]TJC-7.2/630A Ceramic vacuum arc extinguishing chamber

2026-6-16 14:20:21

The TJC-7.2/630A contactor uses a ceramic vacuum arc extinguishing chamber with a corrugated ceramic insulation shell and copper tungsten carbide alloy contacts. It adopts advanced one-time sealing technology and has the advantages of small volume, high insulation level, low current cutoff value, long service life, simple maintenance, no explosion hazard, no pollution, and low noise. The contactor assembled with it can frequently operate various electrical equipment, and when combined with fuses, it can form an F-C cabinet. Product Description

Main technical parameters of ceramic vacuum arc extinguishing chamber for TJC-7.2/630A contactor

Parameter name	Unit Unit	Numerical Value
Rated voltage	kV	seven point two
Rated normal current	A	six hundred and thirty
Rated frequency	Hz	fifty
Rated put through current	kA	six point three
Rated breaking current	kA	five point zero four
Limiting breaking current	kA	six point three
Rated short-time withstand current	kA	six point three
Rated short-time (1min) power frequency withstand voltage Rated short time power frequency withstand voltage (1min)	kV	thirty-two
Rated lightning impulse voltage	kV	sixty
Circuit resistance under contact self closing force Contact automatic blocking ability loop electrical resistance	�̦�	��100
Electricity life	ten thousand times Ten thousand	twenty-five
Mechanical endurance	ten thousand times Ten thousand	fifty
Closing force due to bellows and atmosphere	N	70±20
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke	N	100±20
Contact wear allowance thickness	mm	three
Internal gas pressure	Pa	��1.33×10��^three
Allow storage period	Year of Year	twenty

Cooperate with the mechanical parameters of the contactor

Project	unit Unit	numerical value Value
Contact stroke distance	mm	6±1
Contact travel	mm	2±0.5
Average closing speed	m/s	0.3±0.1
Average opening speed	m/s	0.6±0.2
Rated contact pressure Rated contact pressure	N	100±20
Contact closing bounce time Contact closeting bounce time	ms	��2

Ceramic vacuum arc extinguishing chamber for TJC-7.2/630A contactor

[Ceramic arc extinguishing chamber]TJC-1.14/600 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:20:13

Overview
TJC-1.14/600 low-voltage contactor uses ceramic vacuum arc extinguishing chamber with ceramic insulation shell and WCCu alloy contacts. It adopts advanced one-time sealing and discharging technology, which has the advantages of small volume, strong breaking ability, long service life, simple maintenance, no explosion hazard, no pollution, and low noise. Widely used in coal mines, chemical industry, petroleum metallurgy and other sectors, it is more suitable for use in places with frequent operations and harsh environments. Product Description

Main technical parameters of ceramic vacuum arc extinguishing chamber for TJC-1.14/600 low-voltage contactor

Parameter name		Unit Unit	Numerical Value
Rated voltage		kV	one point one four
Rated normal current		A	six hundred
Rated frequency		Hz	fifty
Rated put through current		A	six thousand
Rated breaking current		A	four thousand and eight hundred
Limiting breaking current		A	six thousand
Rated short-time withstand current Rated short-time withstand current		A	four thousand and eight hundred
Mechanical endurance		Ten thousand times	one hundred
Rated breaking frequency Rated breaking time	AC3 category	Ten thousand times	fifteen
	AC4 category	Ten thousand times	zero point six
Contact self closing force Closing force due to bellow and atmosphere		N	60±20
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke		N	90±20
Circuit resistance under contact self closing force Contact automatic blocking ability loop electrical resistance		�̦�	��100
Allowable wear thickness of contacts Contact-wear allowance thickness		mm	two
shelf life Storage period		Year of Year	twenty
Internal gas pressure		Pa	��1.33×10��^three

Mechanical parameters for using contactors

Project	Unit Unit	Numerical Value
Contact stroke distance	mm	2±0.2
Contact travel	mm	1±0.2
Average opening speed	m/s	0.6±0.2
Average closing speed	m/s	0.3±0.1
Rated contact pressure	N	100±20
Contact closing bounce time Contact closing bounce time	ms	��2
Closing Same Period	ms	��2

TJC-1.14/600 Ceramic Vacuum Arc Extinguishing Chamber for Low Voltage Contactors

[Ceramic arc extinguishing chamber]TJC-1.14-400 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:20:04

Overview
TJC-1.14-400 low-voltage contactor uses ceramic vacuum arc extinguishing chamber with ceramic insulation shell and WCCu alloy contacts. It adopts advanced one-time sealing and discharging technology, which has the advantages of small volume, strong breaking ability, long service life, simple maintenance, no explosion hazard, no pollution, and low noise. Widely used in coal mines, chemical industry, petroleum metallurgy and other sectors, it is more suitable for use in places with frequent operations and harsh environments. Product Description

Main technical parameters

Parameter name		Unit Unit	Numerical Value
Rated voltage		kV	one point one four
Rated normal current		A	four hundred
Rated frequency		Hz	fifty
Rated put through current		A	four thousand
Rated breaking current		A	three thousand and two hundred
Limiting breaking current		A	four thousand
Rated short-time withstand current Rated short-time withstand current		A	three thousand and two hundred
Mechanical endurance		Ten thousand times	one hundred
Rated breaking frequency Rated breaking time	AC3 category	Ten thousand times	fifteen
	AC4 category	Ten thousand times	zero point six
Contact self closing force Closing force due to bellow and atmosphere		N	60±20
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke		N	90±20
Circuit resistance under contact self closing force Contact automatic blocking ability loop electrical resistance		�̦�	��100
Allowable wear thickness of contacts Contact-wear allowance thickness		mm	two
Storage period		Year of Year	twenty
Internal gas pressure		Pa	��1.33×10��^three

TJC-1.14-400 Mechanical parameters of ceramic vacuum arc extinguishing chamber for low-voltage contactors

Project	Unit Unit	Numerical Value
Contact stroke distance	mm	2±0.2
Contact travel	mm	1±0.2
Average opening speed	m/s	0.6±0.2
Average closing speed	m/s	0.3±0.2
Rated contact pressure	N	100±20
Contact closing bounce time Contact closing bounce time	ms	��2
Closing Same Period	ms	��2

Ceramic vacuum arc extinguishing chamber for TJC-1.14-400 low-voltage contactor

[Ceramic arc extinguishing chamber]TJC-1.14/250A Ceramic vacuum arc extinguishing chamber

2026-6-16 14:19:56

Overview
TJC-1.14/250A low-voltage contactor uses ceramic vacuum arc extinguishing chamber with ceramic insulation shell and WCCu alloy contacts. It adopts advanced one-time sealing and discharging technology, which has the advantages of small volume, strong breaking ability, long service life, simple maintenance, no explosion hazard, no pollution, and low noise. Widely used in coal mines, chemical industry, petroleum metallurgy and other sectors, it is more suitable for use in places with frequent operations and harsh environments. Product Description

Main technical parameters of ceramic vacuum arc extinguishing chamber for TJC-1.14/250A low-voltage contactor

Parameter name		Unit Unit	Numerical Value
Rated voltage		kV	one point one four
Rated normal current		A	two hundred and fifty
Rated frequency		Hz	fifty
Rated put through current		A	two thousand and five hundred
Rated breaking current		A	two thousand
Limiting breaking current		A	two thousand and five hundred
Rated short-time withstand current		A	two thousand
Mechanical endurance		Ten thousand times	one hundred
Rated breaking frequency Rated breaking time	AC3 category	Ten thousand times	fifteen
	AC4 category	Ten thousand times	zero point six
Contact self closing force Closing force due to bellow and atmosphere		N	50±10
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke		N	70±10
Circuit resistance under contact self closing force Contact automatic blocking ability loop electrical resistance		�̦�	��120
Contact wear allowance thickness		mm	two
Storage period		Year of Year	twenty
Internal gas pressure		Pa	��1.33×10��^three

Mechanical parameters for using contactors

Project	Unit Unit	Numerical Value
Contact stroke distance	mm	2±0.2
Contact travel	mm	1±0.2
Average opening speed	m/s	0.6±0.1
Average closing speed	m/s	0.3±0.1
Rated contact pressure	N	100±20
Contact closing bounce time Contact closing bounce time	ms	��2
Closing Same Period	ms	��2

Ceramic vacuum arc extinguishing chamber for TJC-1.14/250A low-voltage contactor

[Ceramic arc extinguishing chamber]TJC-1.14/125 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:19:47

Overview
TJC-1.14/125 low-voltage contactor uses ceramic vacuum arc extinguishing chamber with ceramic insulation shell and WCCu alloy contacts. It adopts advanced one-time sealing and discharging technology, which has the advantages of small volume, strong breaking ability, long service life, simple maintenance, no explosion hazard, no pollution, and low noise. Widely used in coal mines, chemical industry, petroleum metallurgy and other sectors, it is more suitable for use in places with frequent operations and harsh environments. Product Description

Main technical parameters

Parameter name		Unit Unit	Numerical Value
Rated voltage		kV	one point one four
Rated normal current		A	one hundred and twenty-five
Rated frequency		Hz	fifty
Rated put through current		A	one thousand two hundred and fifty
Rated breaking current		A	one thousand
Limiting breaking current		A	one thousand two hundred and fifty
Rated short-time withstand current		A	one thousand
Mechanical endurance		ten thousand times Ten thousand	one hundred
Rated breaking frequency Rated breaking time	AC3 category	ten thousand times Ten thousand	fifteen
	AC4 category	ten thousand times Ten thousand	zero point six
Closing force due to bellows and atmosphere		N	20±10
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke		N	50±20
Circuit resistance under contact self closing force Contact automatic blocking ability loop electrical resistance		�̦�	��120
Contact wear allowance thickness		mm	two
shelf life Storage period		Year of Year	twenty
Internal gas pressure		Pa	��1.33×10��^three

TJC-1.14/125 Mechanical parameters of ceramic vacuum arc extinguishing chamber for low-voltage contactors

Project	Unit Unit	Numerical Value
Contact stroke distance	mm	1.8±0.2
Contact travel	mm	1±0.2
Average opening speed	m/s	0.6±0.1
Average closing speed	m/s	0.3±0.1
Rated contact pressure	N	35±5
Contact closing bounce time Contact closing bounce time	ms	��2
Closing Same Period	ms	��2

TJC-1.14/125 Ceramic vacuum arc extinguishing chamber for low-voltage contactors

[Ceramic arc extinguishing chamber]TF-40.5/1250-20 Ceramic arc extinguishing chamber

2026-6-16 14:19:39

Overview
The ceramic arc extinguishing chamber for TF-40.5/1250-20 load switch adopts a ceramic insulation shell, low current cutoff value, and long-life Wcu contact material, which has the advantages of strong arc extinguishing ability, reliable performance, long life, small size, no explosion hazard, and no environmental pollution The corresponding vacuum automatic switch can be used for control and protection of transmission and distribution systems in power, metallurgy, mining, chemical and other departments, especially suitable for places that require frequent operation. Product Description

Main technical parameters of ceramic arc extinguishing chamber for TF-40.5/1250-20 load switch

Parameter name	Unit Unit	Parameter Value
Rated voltage	kV	forty point five
Rated current	A	one thousand two hundred and fifty
Rated frequency	Hz	50/60
Short term (1-minute) power frequency withstand voltage Short time power frequency withstand voltage (1min)	kV	seventy
Lightning impulse withstand voltage Lightning impulse withstand voltage	kV	one hundred and seventy
Rated short-circuit breaking current Rated short circuit breaking current	kA	twenty
Rated peak withstand current Rated peak withstand current	kA	fifty
Rated short-circuit closing current Rated short circuit making current	kA	fifty
Rated short-time withstand current Rated short time withstand current	kA	twenty
Rated short-circuit duration Rated duration of short circuit	S	four
Rated breaking current of a single capacitor bank Rated breaking current of single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current Rated breaking current of back to back capacitor bank	A	four hundred
mechanical life Mechanical endurance	Next time	ten thousand
Contact self closing force Closing force due to bellow and atmosphere	N	60±20
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke	N	145±20
Contact limit abrasion thickness allowed for contacts	mm	three
Gas pressure inside the vacuum arc extinguishing chamber Gas pressure inside vacuum interrupter	Pa	��1.33×10��^three
Weight of moving parts	kg	zero point four five
Quality of vacuum arc extinguishing chamber Weight of vacuum interrupter	kg	one point two

Mechanical parameters of load switch

Clearance between open contacts	mm	15±1
Average opening speed	m/s	1.6±0.2
Average closing speed	m/s	0.8±0.2
Rated contact force	N	700±100
Contact closing bounce time Contact bouncing duration at closing operation	ms	��2
Non synchronous closing and opening of contacts Out of simultaneity of contact closing and opening	ms	��2
Rebound amplitude of the opening contact Bouncing back amplitude of opening contact	mm	��2

Ceramic arc extinguishing chamber for TF-40.5/1250-20 load switch

[Ceramic arc extinguishing chamber]TF-12/630-12.5 Ceramic arc extinguishing chamber

2026-6-16 14:19:30

The ceramic arc extinguishing chamber for TF-12/630-12.5 load switch adopts a ceramic insulation shell, low current cutoff value, long-life Wcu contact material, which has the advantages of strong arc extinguishing ability, reliable performance, long life, small size, no explosion hazard, and no environmental pollution The corresponding vacuum automatic switch can be used for control and protection of transmission and distribution systems in power, metallurgy, mining, chemical and other departments, especially suitable for places that require frequent operation.

Product Description

parameter name Parameter name	unit Unit	numerical value Value
Rated voltage	kV	twelve
Rated current	A	six hundred and thirty
Rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage Short time power frequency withstand voltage (1min)	kV	forty-two
Lightning impulse withstand voltage Lightning impulse withstand voltage	kV	seventy-five
Rated short-circuit breaking current Rated short circuit breaking current	kA	twelve point five
Rated peak withstand current Rated peak withstand current	kA	thirty-one point five
Rated short-circuit closing current Rated short circuit making current	kA	thirty-one point five
Rated short-time withstand current Rated short time withstand current	kA	twelve point five
Rated short-circuit duration Rated duration of short circuit	s	three
Rated breaking current of a single capacitor bank Rated breaking current of single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current Rated breaking current of back to back capacitor bank	A	six hundred and thirty
Rated short-circuit breaking current times Rated short circuit breaking current	time time	ten
mechanical life Mechanical endurance	time time	thirty thousand
Contact self closing force Closing force due to bellow and atmosphere	N	65±20
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke	N	175±35
Circuit resistance at lower limit of rated contact pressure Circuit resistance at lower limit of rated contact force	�̦�	��35
Allowable wear thickness of contacts Contact limit erosion	mm	three
Gas pressure inside the vacuum arc extinguishing chamber Gas pressure inside vacuum interrupter	Pa	��1.33×10��^three
Quality of the sports section Weight of moving parts	kg	zero point five
Quality of vacuum arc extinguishing chamber Weight of vacuum interrupte	kg	one point seven five

Mechanical parameters of load switch

contact gap Clearance between open contacts	mm	9±1
Average opening speed Average opening speed	m/s	0.8±0.3
Average closing speed Average closing speed	m/s	0.5±0.1
Rated contact pressure Rated contact force	N	700±100
Contact closing bounce time Contact bouncing duration at closing operation	ms	��3
Non synchronous closing and opening of contacts Out of simultaneity of contact closing and opening	ms	��2
Rebound amplitude of the opening contact Bouncing back amplitude of opening contact	mm	��

Ceramic arc extinguishing chamber for TF-12/630-12.5 load switch

[Ceramic arc extinguishing chamber]TD-12/1250-20 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:19:22

Overview
The ceramic vacuum arc extinguishing chamber for TD-12/1250-20 circuit breaker adopts corrugated ceramic as the insulation shell, with CuCr50 alloy contacts and cup-shaped longitudinal magnetic structure. It has the characteristics of large current interruption, high insulation level, strong arc extinguishing ability, long service life, small volume, simple maintenance, no explosion hazard, no pollution, and low noise. The indoor vacuum circuit breaker assembled with it is used for control and protection in the transmission and distribution systems of power, machinery, chemical, metallurgical, mining, railway and other departments, and is suitable for places with frequent operations. Product Description

Main technical parameters

Parameter Name Parameter name	Unit Unit	Numerical Value
Rated voltage	kV	twelve
Rated normal current	A	one thousand two hundred and fifty
Rated short circuit breaking current	kA	twenty
Rated short circuit making current	kA	fifty
Rated peak withstand current	kA	fifty
Rated short-time withstand current	kA	twenty
Rated duration of short circuit	S	four
Rated breaking current of a single capacitor bank Rated single capacitor unit breaking current	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current Rated back to back capacitor unit breaking current	A	four hundred
Rated short-time (1min) power frequency withstand voltage Rated short time power frequency withstand voltage (1min)	kV	forty-two
Circuit resistance under rated contact pressure Circuit resistance at lower limit of rated contact pressure	�̦�	��30
Rated short-circuit breaking current breaking times Rated short circuit breaking current breaking times	time Time	thirty
Rated lightning impulse withstand voltage Rated lightning impulse withstand voltage	kV	seventy-five
Mechanical endurance	Next Time	ten thousand
Contact self closing force Closing force due to bellow and atmosphere	N	120±50
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke	N	200±50
Allowable wear thickness of contacts Contact-wear allowance thickness	mm	three
Internal gas pressure	Pa	��1.33×10��^three
Allow storage period	Year of Year	twenty

Mechanical parameters for using circuit breakers

Project	Unit Unit	Numerical Value
Contact stroke distance	mm	11±1
Contact travel	mm	3.5±0.5
Average closing speed	m/s	0.6±0.2
Average opening speed	m/s	1.1±0.2
Rated contact pressure	N	2000±200
Contact closing bounce time	ms	��2
Non synchronous closing and opening of contacts Out of simultaneity of contact closing and opening	ms	��2
Rebound amplitude of the opening contact Bouncing back amplitude of opening contact	mm	��3

Ceramic vacuum arc extinguishing chamber for TD-12/1250-20 circuit breaker

[Ceramic arc extinguishing chamber]TD-12/1600-31.5 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:19:13

Overview

The ceramic vacuum arc extinguishing chamber for TD-12/1600-31.5 circuit breaker adopts corrugated ceramic as the insulation shell, with CuCr50 alloy contacts and cup-shaped longitudinal magnetic structure. It has the characteristics of large current interruption, high insulation level, strong arc extinguishing ability, long service life, small size, simple maintenance, no explosion hazard, no pollution, and low noise. The indoor vacuum circuit breaker assembled with it is used for control and protection in the transmission and distribution systems of power, machinery, chemical, metallurgical, mining, railway and other departments, and is suitable for places with frequent operations.

Main technical parameters of ceramic vacuum arc extinguishing chamber for TD-12/1600-31.5 circuit breaker

Parameter name	Unit Unit	Numerical Value
Rated voltage	kV	twelve
Rated normal current	A	one thousand and six hundred
Rated short-circuit breaking current Rated short-circuit breaking current	kA	thirty-one point five
Rated short circuit making current	kA	eighty
Rated peak withstand current	kA	eighty
Rated short-time withstand current	kA	thirty-one point five
Rated duration of short circuit	S	four
Rated breaking current of a single capacitor bank Rated single capacitor unit breaking current	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current Rated back to back capacitor unit breaking current	A	four hundred
Rated short-time (1min) power frequency withstand voltage Rated short time power frequency withstand voltage (1min)	kV	forty-two
Circuit resistance under rated contact pressure Circuit resistance at lower limit of rated contact pressure	�̦�	��30
Rated short-circuit breaking current breaking times Rated short circuit breaking current breaking times	time Time	thirty
Rated lightning impulse withstand voltage Rated lightning impulse withstand voltage	kV	seventy-five
mechanical life Mechanical endurance	Next Time	ten thousand
Closing force due to bellows and atmosphere	N	120±50
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke	N	200±50
Contact wear allowance thickness	mm	three
Internal gas pressure	Pa	��1.33×10��^three
Allow storage period	Year of Year	twenty

Mechanical parameters for using circuit breakers

Project	Unit Unit	Numerical Value
Contact stroke distance	mm	11±1
Contact travel	mm	3±^one₀
Average closing speed	m/s	0.6±0.2
Average opening speed	m/s	1.1±0.2
Rated contact pressure	N	3100±200
Contact closing bounce time	ms	��2
Out of simultaneity of contact closing and opening	ms	��2
Bouncing back amplitude of opening contact	mm	��2

Ceramic vacuum arc extinguishing chamber for TD-12/1600-31.5 circuit breaker

[Ceramic arc extinguishing chamber]TD-12/2500-40 Ceramic vacuum arc extinguishing chamber

2026-6-16 14:19:04

Overview
The ceramic vacuum arc extinguishing chamber for TD-12/2500-40 circuit breaker adopts corrugated ceramic as the insulation shell, with CuCr50 alloy contacts and cup-shaped longitudinal magnetic structure. It has the characteristics of large current interruption, high insulation level, strong arc extinguishing ability, long service life, small size, simple maintenance, no explosion hazard, no pollution, and low noise. The indoor vacuum circuit breaker assembled with it is used for control and protection in the transmission and distribution systems of power, machinery, chemical, metallurgical, mining, railway and other departments, and is suitable for places with frequent operations. Product Description

Main technical parameters
Main technique parameter

Parameter name	unit Unit	numerical value Value
rated voltage Rated voltage	kV	twelve
rated current Rated normal current	A	two thousand and five hundred
Rated short-circuit breaking current Rated short-circuit breaking current	kA	forty
Rated short-circuit closing current Rated short-circuit making current	kA	one hundred
Rated peak withstand current Rated peak withstand current	kA	one hundred
Rated short-time withstand current Rated short-time withstand current	kA	forty
Rated short-circuit duration Rated duration of short circuit	S	four
Rated breaking current of a single capacitor bank Rated single capacitor unit breaking current	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current Rated back to back capacitor unit breaking current	A	four hundred
Rated short-time (1min) power frequency withstand voltage Rated short time power frequency withstand voltage (1min)	kV	forty-two
Circuit resistance under rated contact pressure Circuit resistance at lower limit of rated contact pressure	�̦�	��25
Rated short-circuit breaking current breaking times Rated short circuit breaking current breaking times	time Time	thirty
Rated lightning impulse withstand voltage Rated lightning impulse withstand voltage	kV	seventy-five
mechanical life Mechanical endurance	time Time	ten thousand
Contact self closing force Closing force due to bellow and atmosphere	N	120±50
Contact reaction force at rated opening distance Force required to hold contacts open at full stroke	N	200±50
Allowable wear thickness of contacts Contact-wear allowance thickness	mm	three
Internal gas pressure Internal gas pressure	Pa	��1.33×10��^three
Allow storage period	year Year	twenty

Mechanical parameters for using circuit breakers

project Project	unit Unit	numerical value Value
contact gap Contact stroke	mm	11±1
Contact stroke of contacts Contact travel	mm	3±^one₀
Average closing speed Average closing speed	m/s	0.6±0.2
Average opening speed Average opening speed	m/s	1.1±0.2
Rated contact pressure Rated contact pressure	N	4000±300
Contact closing bounce time Contact closing bounce time	ms	��2
Non synchronous closing and opening of contacts Out of simultaneity of contact closing and opening	ms	��2
Rebound amplitude of the opening contact Bouncing back amplitude of opening contact	mm	��2

Ceramic vacuum arc extinguishing chamber for TD-12/2500-40 circuit breaker

[Ceramic arc extinguishing chamber]TD-40.5/1600-31.5 Vacuum arc extinguishing chamber

2026-6-16 14:18:56

Product Overview:

TD-40.5/1600-31.5 vacuum arc extinguishing chamber adopts copper chromium contact material, cup-shaped longitudinal magnetic field structure, stainless steel corrugated tube, ceramic shell and exposed shielding tube. The product has the characteristics of large breaking capacity, good insulation performance, and long mechanical life. Paired with corresponding vacuum circuit breakers, it can be widely used in power systems as a control and protection device for circuits, especially suitable for places with frequent operation.

Main technical parameters of vacuum arc extinguishing chamber

parameter item	unit	parameter
rated voltage	kV0	forty point five
rated current	A	one thousand and six hundred
rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage	kV	ninety-five
Lightning impulse withstand voltage	kV	one hundred and eighty-five
Rated short-circuit breaking current	kA	thirty-one point five
Rated peak withstand current	kA	eighty
Rated short-circuit closing current	kA	eighty
Rated short-time withstand current	kA	thirty-one point five
Rated short-circuit duration	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current	A	four hundred
Rated operating sequence		Fen-0.3S-180S-Fen
Rated short-circuit breaking current breaking times	time	twenty
mechanical life	time	ten thousand
Contact self closing force	N	170±30
Contact reaction force	N	320±30
Circuit resistance at lower limit of rated contact pressure	u��	��30
Thickness of allowable wear of contacts	mm	three
Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1×10
Quality of the sports section	kg	four point one
Quality of vacuum arc extinguishing chamber	kg	twelve point eight

Mechanism characteristics and parameters of vacuum switch equipment for TD-40.5/1600-31.5 vacuum arc extinguishing chamber

parameter item	unit	parameter
contact gap	mm	25±2
Average opening speed	m/s	2.0±0.3
Average closing speed	m/s	0.8±0.2
Rated contact pressure	N	3100±200
Contact closing bounce time	ms	��3
Non synchronous closing and opening of contacts	ms	��2
Rebound amplitude of the opening contact	mm	��2

[Ceramic arc extinguishing chamber]TD-40.5/1250-31.5 Vacuum arc extinguishing chamber

2026-6-16 14:18:47

Product Overview:

TD-40.5/1250-31.5 vacuum arc extinguishing chamber adopts copper chromium contact material, cup-shaped longitudinal magnetic field structure, stainless steel corrugated tube, ceramic shell and exposed shielding tube. The product has the characteristics of large breaking capacity, good insulation performance, and long mechanical life. Paired with corresponding vacuum circuit breakers, it can be widely used in power systems as a control and protection device for circuits, especially suitable for places with frequent operation.

Main technical parameters of TD-40.5/1250-31.5 vacuum arc extinguishing chamber

parameter item	unit	parameter
rated voltage	kV0	forty point five
rated current	A	one thousand two hundred and fifty
rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage	kV	ninety-five
Lightning impulse withstand voltage	kV	one hundred and eighty-five
Rated short-circuit breaking current	kA	thirty-one point five
Rated peak withstand current	kA	eighty
Rated short-circuit closing current	kA	eighty
Rated short-time withstand current	kA	thirty-one point five
Rated short-circuit duration	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current	A	four hundred
Rated operating sequence		Fen-0.3S-180S-Fen
Rated short-circuit breaking current breaking times	time	twenty
mechanical life	time	ten thousand
Contact self closing force	N	170±30
Contact reaction force	N	320±30
Circuit resistance at lower limit of rated contact pressure	u��	��30
Thickness of allowable wear of contacts	mm	three
Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1×10
Quality of the sports section	kg	four point one
Quality of vacuum arc extinguishing chamber	kg	twelve point eight

The mechanism characteristics and parameters of the vacuum switch equipment matched with the product

parameter item	unit	parameter
contact gap	mm	25±2
Average opening speed	m/s	2.0±0.3
Average closing speed	m/s	0.8±2
Rated contact pressure	N	3100±200
Contact closing bounce time	ms	��3
Non synchronous closing and opening of contacts	ms	��2
Rebound amplitude of the opening contact	mm	��2

[Ceramic arc extinguishing chamber]TD-12/2000-40 Vacuum arc extinguishing chamber

2026-6-16 14:18:38

Overview:
TD-12/2000-40 vacuum arc extinguishing chamber is a miniaturized product, using copper chromium contact material, cup-shaped longitudinal magnetic field structure, and large creepage distance ceramic insulation shell. The product has the characteristics of small size, large breaking capacity, and high insulation level. Paired with corresponding vacuum circuit breakers, it is particularly suitable for power distribution systems and frequently operated places in departments such as electricity, machinery, chemical engineering, metallurgy, and mining.

Main technical parameters of vacuum arc extinguishing chamber

parameter item	unit	parameter
rated voltage	kV	twelve
rated current	A	two thousand
rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage	kV	forty-two
Lightning impulse withstand voltage	kV	seventy-five
Rated short-circuit breaking current	kA	forty
Rated peak withstand current	kA	one hundred
Rated short-circuit closing current	kA	one hundred
Rated short-time withstand current	kA	forty
Rated short-circuit duration	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current	A	four hundred
Rated operating sequence		Fen-180S-HeFen-180S-HeFen
Rated short-circuit breaking current breaking times	time	thirty
mechanical life	time	ten thousand
Contact self closing force	N	210±30
Contact reaction force	N	300±70
Circuit resistance at lower limit of rated contact pressure	u��	��15
Thickness of allowable wear of contacts	mm	three
Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1×10
Quality of the sports section	kg	two point two
Quality of vacuum arc extinguishing chamber	kg	six point six

The mechanism characteristics and parameters of the vacuum switch equipment matched with the product

parameter item	unit	parameter
contact gap	mm	11±1
Average opening speed	m/s	1.1±0.2
Average closing speed	m/s	0.6±0.2
Rated contact pressure	N	5000±300
Contact closing bounce time	ms	��2
Non synchronous closing and opening of contacts	ms	��2
Rebound amplitude of the opening contact	mm	��2

[Ceramic arc extinguishing chamber]TD-12/2000-31.5 Vacuum arc extinguishing chamber

2026-6-16 14:18:30

Product Overview:

TD-12/2000-31.5 vacuum arc extinguishing chamber is a miniaturized product, using copper chromium contact material, cup-shaped longitudinal magnetic field structure, and large creepage distance ceramic insulation shell. The product has the characteristics of small size, large breaking capacity, and high insulation level. Matched with corresponding vacuum circuit breakers or vacuum distribution devices, it is particularly suitable for places where circuits are frequently operated in all working conditions of departments such as power, machinery, chemical, metallurgical, mining, etc.

TD-12/2000-31.5 Main technical parameters of vacuum arc extinguishing chamber

parameter item	unit	parameter
rated voltage	kV	twelve
rated current	A	two thousand
rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage	kV	forty-two
Lightning impulse withstand voltage	kV	seventy-five
Rated short-circuit breaking current	kA	thirty-one point five
Rated peak withstand current	kA	eighty
Rated short-circuit closing current	kA	eighty
Rated short-time withstand current	kA	thirty-one point five
Rated short-circuit duration	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current	A	four hundred
Rated operating sequence		Fen-0.3 (0.5) S-HeFen-180S-HeFen
Rated short-circuit breaking current breaking times	time	thirty
mechanical life	time	ten thousand
Contact self closing force	N	210±30
Contact reaction force	N	300±70
Circuit resistance at lower limit of rated contact pressure	u��	��15
Thickness of allowable wear of contacts	mm	three
Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1×10
Quality of the sports section	kg	two point two
Quality of vacuum arc extinguishing chamber	kg	six point six

The mechanism characteristics and parameters of the vacuum switch equipment matched with the product

parameter item	unit	parameter
contact gap	mm	11±1
Average opening speed	m/s	1.1±0.2
Average closing speed	m/s	0.6±0.2
Rated contact pressure	N	3100±200
Contact closing bounce time	ms	��2
Non synchronous closing and opening of contacts	ms	��1
Rebound amplitude of the opening contact	mm	��2

[Ceramic arc extinguishing chamber]TD-12/1250-31.5 Vacuum arc extinguishing chamber

2026-6-16 14:18:21

Product Overview:
The TD-12/1250-31.5 vacuum arc extinguishing chamber adopts a corrugated ceramic shell, with copper chromium contacts and a cup-shaped longitudinal magnetic field structure. It has the advantages of large interruption capacity, high insulation level, strong arc extinguishing ability, long service life, small size, simple maintenance, no explosion hazard, no pollution, and low noise. The indoor vacuum circuit breaker assembled with it is used for control and protection in the transmission and distribution systems of power, machinery, chemical, metallurgical, mining, railway and other departments. Especially suitable for places with frequent operations.

Main technical parameters of vacuum arc extinguishing chamber

parameter item	unit	parameter
rated voltage	kV	twelve
rated current	A	one thousand two hundred and fifty
rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage	kV	forty-two
Lightning impulse withstand voltage	kV	seventy-five
Rated short-circuit breaking current	kA	thirty-one point five
Rated peak withstand current	kA	eighty
Rated short-circuit closing current	kA	eighty
Rated short-time withstand current	kA	thirty-one point five
Rated short-circuit duration	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current	A	four hundred
Rated operating sequence		Fen-0.3S-180S-Fen
Rated short-circuit breaking current breaking times	time	fifty
mechanical life	time	ten thousand
Contact self closing force	N	140±50
Contact reaction force	N	230±50
Circuit resistance at lower limit of rated contact pressure	u��	��20
Thickness of allowable wear of contacts	mm	three
Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1×10
Quality of the sports section	kg	one point two six
Quality of vacuum arc extinguishing chamber	kg	four point six five

Mechanism characteristics and parameters of vacuum switch equipment for TD-12/1250-31.5 vacuum arc extinguishing chamber

parameter item	unit	parameter
contact gap	mm	11±
Average opening speed	m/s	1.1±0.2
Average closing speed	m/s	0.85±0.85
Rated contact pressure	N	3100±200
Contact closing bounce time	ms	��3
Non synchronous closing and opening of contacts	ms	��1
Rebound amplitude of the opening contact	mm	��2

[Ceramic arc extinguishing chamber]TD-12/1250-25, TD-12/1250-25N vacuum arc extinguishing chamber

2026-6-16 14:18:13

Product Overview:

TD-12/1250-25 and TD-12/1250-25N vacuum arc extinguishing chambers are equipped with corrugated ceramic shells, copper chromium contacts, and cup-shaped longitudinal magnetic field structures. It has the advantages of large interruption capacity, high insulation level, strong arc extinguishing ability, long service life, small size, simple maintenance, no explosion hazard, no pollution, and low noise. The indoor vacuum circuit breaker assembled with it is used for control and protection in the transmission and distribution systems of power, machinery, chemical, metallurgical, mining, railway and other departments. Especially suitable for places with frequent operations.

Main technical parameters of vacuum arc extinguishing chamber

parameter item	unit	parameter
rated voltage	kV	twelve
rated current	A	one thousand two hundred and fifty
rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage	kV	forty-two
Lightning impulse withstand voltage	kV	seventy-five
Rated short-circuit breaking current	kA	twenty-five
Rated peak withstand current	kA	sixty-three
Rated short-circuit closing current	kA	sixty-three
Rated short-time withstand current	kA	twenty-five
Rated short-circuit duration	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current	A	four hundred
Rated operating sequence		Fen-0.3S-180S-Fen
Rated short-circuit breaking current breaking times	time	thirty
mechanical life	time	ten thousand
Contact self closing force	N	140±50
Contact reaction force	N	240±50
Circuit resistance at lower limit of rated contact pressure	u��	��25
Thickness of allowable wear of contacts	mm	three
Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1×10
Quality of the sports section	kg	one point one five
Quality of vacuum arc extinguishing chamber	kg	four

Mechanism characteristics and parameters of vacuum switch equipment for TD-12/1250-25 and TD-12/1250-25N vacuum arc extinguishing chambers

parameter item	unit	parameter
contact gap	mm	11±1
Average opening speed	m/s	1.1±0.2
Average closing speed	m/s	0.6±0.2
Rated contact pressure	N	2500±200
Contact closing bounce time	ms	��2
Non synchronous closing and opening of contacts	ms	��2
Rebound amplitude of the opening contact	mm	��2

[Ceramic arc extinguishing chamber]TD-12/630-20B Vacuum arc extinguishing chamber

2026-6-16 14:18:04

Overview:

TD-12/630-20B vacuum arc extinguishing chamber is a miniaturized product, using copper chromium contact material, cup-shaped longitudinal magnetic field structure, and large creepage distance ceramic insulation shell. The product has the characteristics of small size, large breaking capacity, and high insulation level. Paired with corresponding indoor and outdoor vacuum circuit breakers, it is suitable for accompanying power systems in industrial sectors such as power, machinery, chemical, metallurgical, and mining, especially in places with frequent operations.

Main technical parameters of vacuum arc extinguishing chamber

parameter item	unit	parameter
rated voltage	kV	twelve
rated current	A	six hundred and thirty
rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage	kV	forty-two
Lightning impulse withstand voltage	kV	seventy-five
Rated short-circuit breaking current	kA	twenty
Rated peak withstand current	kA	fifty
Rated short-circuit closing current	kA	fifty
Rated short-time withstand current	kA	twenty
Rated short-circuit duration	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current	A	four hundred
Rated operating sequence		Fen-0.3S-180S-Fen
Rated short-circuit breaking current breaking times	time	thirty
mechanical life	time	ten thousand
Contact self closing force	N	140±50
Contact reaction force	N	240±50
Circuit resistance at lower limit of rated contact pressure	u��	��25
Thickness of allowable wear of contacts	mm	three
Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1×10
Quality of the sports section	kg	one point one five
Quality of vacuum arc extinguishing chamber	kg	four

Mechanism characteristics and parameters of vacuum switch equipment for TD-12/630-20B vacuum arc extinguishing chamber

parameter item	unit	parameter
contact gap	mm	11±1
Average opening speed	m/s	1.1±0.2
Average closing speed	m/s	0.6±0.2
Rated contact pressure	N	2000±200
Contact closing bounce time	ms	��2
Non synchronous closing and opening of contacts	ms	��2
Rebound amplitude of the opening contact	mm	��2

[Ceramic arc extinguishing chamber]ZW8 Vacuum arc extinguishing chamber (ZW8 dedicated)

2026-6-16 14:17:56

Overview:
BD-12/630-20, TD-12/630-20W vacuum arc extinguishing chamber (ZW8 specific) is a miniaturized product, using copper chromium contact material, cup-shaped longitudinal magnetic field structure, and glass or ceramic as insulation shell. The product has the characteristics of small size, large breaking capacity, and high pressure resistance. Paired with corresponding outdoor vacuum circuit breakers or vacuum distribution devices, it can be widely used in places where circuits are frequently operated in industrial sectors such as power, machinery, chemical, metallurgical, mining, etc.

BD-12/630-20, TD-12/630-20W vacuum arc extinguishing chamber (ZW8 specific) main technical parameters

parameter item	unit	parameter
rated voltage	kV	twelve
rated current	A	six hundred and thirty
rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage	kV	forty-two
Lightning impulse withstand voltage	kV	seventy-five
Rated short-circuit breaking current	kA	twenty
Rated peak withstand current	kA	fifty
Rated short-circuit closing current	kA	fifty
Rated short-time withstand current	kA	twenty
Rated short-circuit duration	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current	A	four hundred
Rated operating sequence		Fen-0.3S-180S-Fen
Rated short-circuit breaking current breaking times	time	thirty
mechanical life	time	ten thousand
Contact self closing force	N	95±35
Contact reaction force	N	215±40
Circuit resistance at lower limit of rated contact pressure	u��	��30
Thickness of allowable wear of contacts	mm	three
Gas pressure inside the vacuum arc extinguishing chamber	Pa	��1×10
Quality of the sports section	kg	one
Quality of vacuum arc extinguishing chamber	kg	three

The mechanism characteristics and parameters of the vacuum switch equipment matched with the product

parameter item	unit	parameter
contact gap	mm	8±
Average opening speed	m/s	1.1±0.2
Average closing speed	m/s	0.6±0.2
Rated contact pressure	N	2000±200
Contact closing bounce time	ms	��2
Non synchronous closing and opening of contacts	ms	��2
Rebound amplitude of the opening contact	mm	��2

[Ceramic arc extinguishing chamber]TD14A-12/1250-31.5B Vacuum arc extinguishing chamber

2026-6-16 14:17:47

Introduction to TD14A-12/1250-31.5B vacuum arc extinguishing chamber:
Overall Dimension Drawing

parameter name	parameter value	unit
rated voltage	twelve	kV
rated current	one thousand two hundred and fifty	A
rated frequency	fifty	Hz
Short term (1-minute) power frequency withstand voltage	forty-two	kV
Lightning impulse withstand voltage	seventy-five	kV
Rated short-circuit breaking current	thirty-one point five	kA
Rated peak withstand current	eighty	kA
Rated short-circuit closing current	eighty	kA
Rated short-time withstand current	thirty-one point five	kA
Rated short-circuit duration	four	s
Rated breaking current of a single capacitor bank	six hundred and thirty	A
Rated back-to-back capacitor bank breaking current	four hundred	A
Rated operating sequence	O-0.3(0.5)s-CO-180s-CO
Rated short-circuit breaking current times	fifty	time
mechanical life	twenty thousand	time
Contact self closing force	140±50	N
Contact reaction force at rated opening distance	230±50	N
Circuit resistance at lower limit of rated contact pressure	twenty	�̦�
Allowable wear thickness of contacts	three	mm
Gas pressure inside the vacuum arc extinguishing chamber	zero point zero zero one	Pa
Quality of the sports section	one point four	kg
Quality of vacuum arc extinguishing chamber	four point seven	kg
contact gap	11±1	mm
Average opening speed	1.1±0.2	m/s
Average closing speed	0.6±0.2	m/s
Rated contact pressure	3100±200	N
Contact closing bounce time	two	ms
Non synchronous closing and opening of contacts	two	ms
Rebound amplitude of the opening contact	two	mm
outer diameter	one hundred and six	mm
installation height	two hundred and twenty-five	mm
appearance	Umbrella skirt, climbing distance �� 240

[Ceramic arc extinguishing chamber]TD21-40.5/1600-20 Vacuum arc extinguishing chamber

2026-6-16 14:17:39

TD21-40.5/1600-20 vacuum arc extinguishing chamber

Product Introduction:
Overall Dimension Drawing

parameter name	parameter value	unit
rated voltage	forty point five	kV
rated current	one thousand and six hundred	A
rated frequency	fifty	Hz
Short term (1-minute) power frequency withstand voltage	ninety-five	kV
Lightning impulse withstand voltage	one hundred and eighty-five	kV
Rated short-circuit breaking current	twenty	kA
Rated peak withstand current	fifty	kA
Rated short-circuit closing current	fifty	kA
Rated short-time withstand current	twenty	kA
Rated short-circuit duration	four	s
Rated breaking current of a single capacitor bank	six hundred and thirty	A
Rated back-to-back capacitor bank breaking current	four hundred	A
Rated operating sequence	O-0.3s-CO-180s-CO
Rated short-circuit breaking current times	twenty	time
mechanical life	ten thousand	time
Contact self closing force	180±50	N
Contact reaction force at rated opening distance	300±50	N
Circuit resistance at lower limit of rated contact pressure	twenty-five	�̦�
Allowable wear thickness of contacts	three	mm
Gas pressure inside the vacuum arc extinguishing chamber	zero point zero zero one	Pa
Quality of the sports section	three point six seven	kg
Quality of vacuum arc extinguishing chamber	twelve	kg
contact gap	22±2	mm
Average opening speed	1.6±0.2	m/s
Average closing speed	0.6±0.2	m/s
Rated contact pressure	2500±200	N
Contact closing bounce time	two	ms
Non synchronous closing and opening of contacts	two	ms
Rebound amplitude of the opening contact	two	mm
outer diameter	one hundred and thirty-eight	mm
installation height	four hundred and fourteen	mm
appearance	Shielding tube exposed

TD21-40.5/1600-20 vacuum arc extinguishing chamber

[Ceramic arc extinguishing chamber]ZKBF-12/630-20 type vacuum switch tube

2026-6-16 14:17:30

purpose
The ZKBF type vacuum switch tube uses high alumina glass as the insulating shell and high vacuum as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require maintenance of the contacts. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industries such as coal, electricity, chemical, metallurgical, textile, and high-rise buildings.

This product is equipped with a suitable operating mechanism and can be assembled into an AC high-voltage vacuum load switch, serving as protection and control for electrical facilities. Used for dividing and combining load current, closed-loop current, no-load transformer, and cable charging current.
technical parameters

Rated voltage 12KV	Rated peak withstand current 50KA	Contact resistance under rated contact pressure �� 30 ��
Rated current 630A	Rated short-time withstand time 4S	The allowable wear thickness of the contact is 3mm
Rated active load breaking current 630A	Rated short-circuit closing current 50KA	Storage period of 20 years
Rated closed-loop breaking current 630A	Rated power frequency withstand voltage 42KV	Equipped with load switch FZN21-12D/T630-20 type
Rated cable charging breaking current 10A	Contact self closing force 190 ± 20N
Rated breaking no-load transformer capacity 1250KVA	Contact reaction force at rated torque of 240 ± 24N

External dimensions and installation dimensions:

[Ceramic arc extinguishing chamber]ZKTDW-630/12-20 type vacuum switch tube

2026-6-16 14:17:22

The ZKTD vacuum switch tube adopts high alumina ceramic as the insulation shell, and is covered with high-strength corrugated insulation material on the outside. The tube uses high vacuum as the medium, so it is resistant to high voltage, has strong breaking ability, long service life, and does not require maintenance of the contacts. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industries such as coal, electricity, chemical, metallurgy, textile, and high-rise buildings.
This product, equipped with a suitable operating mechanism, can be assembled into an AC circuit breaker, used as a distribution device in three-phase AC power generation and supply systems, and as a centralized control device for electric motors.

technical parameters

Rated working voltage 10KV	Rated short-time withstand time 4S
Rated working current 630A	Rated power frequency withstand voltage 42KV
Rated short-circuit breaking current 20KA	Impulse withstand voltage 75KV
Rated short-circuit breaking frequency 30 times	Contact self closing force 100 ± 10N
Rated closing current (peak) 50KA	Contact reaction force at rated opening distance of 140 ± 14N
Rated current breaking times 1000 times	Rated contact pressure and contact resistance �� 100 ��
Mechanical lifespan of 100 million cycles	Equipped with circuit breaker ZW8-12 type
Rated short-time withstand current 20KA

External dimensions and installation dimensions

[Ceramic arc extinguishing chamber]ZKTD-630/10KV-I,II type ceramic vacuum switch tube

2026-6-16 14:17:13

purpose
The ZKTD ceramic vacuum switch tube adopts high alumina ceramic as the insulation shell, and high vacuum as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require maintenance of the contacts. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industrial sectors such as coal, power, chemical, metallurgy, and petroleum.
This product is equipped with a suitable operating mechanism and can be assembled into an AC circuit breaker for use in power distribution control devices, for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

technical parameters
Rated working voltage 10KV
Rated working current 400, 630A
Rated short-circuit breaking current 12.5KA
Rated short-circuit breaking frequency 16 times
Rated current breaking frequency 3000 times
Mechanical lifespan of 15000 cycles
Rated short-time withstand current 12.5KA
Rated short-time withstand time 4S
Rated power frequency withstand voltage 42KV
Rated opening torque 8 ± 1mm
Contact self closing force 115 ± 11N
Contact reaction force at rated opening moment 140 ± 14N
Contact resistance under rated contact pressure �� 100 ��
Type I is equipped with Jiyuan Circuit Breaker Type A
Type II equipped with Jiyuan Circuit Breaker Type A

External dimensions and installation dimensions

ZKTD-630/10KV-I, II type ceramic vacuum switch tube

[Ceramic arc extinguishing chamber]ZKTD-400(630)/6KV type ceramic vacuum switch tube

2026-6-16 14:17:04

purpose

The ZKTD ceramic vacuum switch tube adopts high alumina ceramic as the insulation shell, and high vacuum as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require maintenance of the contacts. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industrial sectors such as coal, power, chemical, metallurgy, and petroleum.

This product is equipped with a suitable operating mechanism and can be assembled into an AC circuit breaker for use in power distribution control devices, for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

technical parameters

Rated working voltage 6KV
Rated working current 400, 630A
Rated short-circuit breaking current 12.5KA
Rated short-circuit breaking frequency 16 times
Rated current breaking frequency 3000 times
Mechanical lifespan of 15000 cycles
Rated short-time withstand current 12.5KA
Rated short-time withstand time 4S
Rated power frequency withstand voltage 32KV
Rated opening torque 4 ± 0.4mm, contact self closing force 115 ± 11N
Contact reaction force at rated opening moment 140 ± 14N
Contact resistance under rated contact pressure �� 100 ��

External dimensions and installation dimensions

[Ceramic arc extinguishing chamber]ZKTD-630/1140 type ceramic vacuum switch tube

2026-6-16 14:16:56

purpose
The ZKTD-630/1140 ceramic vacuum switch tube uses high alumina ceramic as the insulation shell and high vacuum as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require maintenance of the contacts. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.
This product is equipped with a suitable operating mechanism and can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors. It is used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.
technical parameters
Rated working voltage 1140V; rated working current 630A; rated short-circuit breaking current 12.5KA
Rated short-circuit breaking frequency 16 times; Rated current breaking frequency 3000 times; Mechanical lifespan of 15000 cycles;
Rated short-time withstand current 12.5KA; rated short-time withstand time 4S; rated power frequency withstand voltage 10KV
The rated opening distance of the contact is 4 ± 0.4mm; the self closing force of the contact is 115 ± 11N;
The reaction force at the rated opening distance of the contact is 140 ± 14N;
The contact resistance under the self closing force of the contact is �� 100 �� ;
Equipped with circuit breakers ZK1-630.

ZKTD-630/1140 Ceramic Vacuum Switch Tube Dimensions and Installation Dimensions

[Ceramic arc extinguishing chamber]ZKTD-500/1140 type ceramic vacuum switch tube

2026-6-16 14:16:47

purpose

The ZKTD-500/1140 ceramic vacuum switch tube uses high alumina ceramic as the insulation shell and high vacuum as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require maintenance of the contacts. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.
ZKTD-500/1140 ceramic vacuum switch tube, equipped with a suitable operating mechanism, can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors, used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

technical parameters

Rated working voltage 1140V;	Rated working current 500A;	Rated short-circuit breaking current 9KA
Rated short-circuit breaking frequency 16 times;	Rated current breaking frequency 3000 times;	Mechanical lifespan of 15000 cycles;
Rated short-time withstand current 9KA;	Rated short-time withstand time of 4S;	Rated power frequency withstand voltage 10KV
The rated opening distance of the contact is 4 ± 0.4mm;	Contact self closing force 100 ± 10N;
The reaction force at the rated opening distance of the contact is 140 ± 14N;
The contact resistance under the self closing force of the contact is �� 100 �� ;
Equipped with circuit breaker ZN20-500 type.

External dimensions and installation dimensions

[Ceramic arc extinguishing chamber]ZKTD-400/1140 type ceramic vacuum switch tube

2026-6-16 14:16:39

purpose
ZKTJ and ZKTD ceramic vacuum switch tubes use high alumina ceramics as the insulation shell and high vacuum as the medium inside the tube. Therefore, they have small volume, high voltage resistance, strong breaking ability, long service life, and do not require maintenance of the contacts. Especially due to their advantages of not exposing the arc and being safe and reliable, they are widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.

This product is equipped with a suitable operating mechanism and can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors. It is used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

Technical parameters of ZKTD-400/1140 ceramic vacuum switch tube

Rated working voltage 1140V;	Rated working current 400A;	Rated short-circuit breaking current 8KA
Rated short-circuit breaking frequency 16 times;	Rated current breaking frequency 3000 times;	Mechanical lifespan of 20000 cycles;
Rated short-time withstand current 8KA;	Rated short-time withstand time of 4S;	Rated power frequency withstand voltage 10KV
The rated opening distance of the contact is 4 ± 0.4mm;	Contact self closing force 115 ± 11N;
The reaction force at the rated opening distance of the contact is 140 ± 14N;
The contact resistance under the self closing force of the contact is �� 100 �� ;
Equipped with circuit breaker ZN7-400 type.

External dimensions and installation dimensions

[Ceramic arc extinguishing chamber]ZKTJ-160-630/10KV( �� type ceramic vacuum switch tube

2026-6-16 14:16:30

purpose
ZKTJ-160-630/10KV (I) ceramic vacuum switch tube adopts high alumina ceramic as the insulation shell and high vacuum as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require maintenance of the contacts. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industrial sectors such as coal, power, chemical, metallurgy, and petroleum.
ZKTJ-160-630/10KV (I) ceramic vacuum switch tube, equipped with a suitable operating mechanism, can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors, used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

technical parameters

Rated working voltage 10KV;	Rated working current of 160, 250, 400, 630A;
Rated connection capacity 1.6, 2.5, 4, 6.3KA, 100 times	Rated breaking capacity 1.28, 2, 3.2, 5.04KA, 25 times
Ultimate breaking capacity 160-400A 4.5KA 3 times	Rated short-time withstand current 1.28, 2, 3.2, 5.04KA;
Rated short-circuit duration 10S	Power frequency withstand voltage 32KV;
Electric lifespan 100000 times	Mechanical lifespan of 1 million cycles
The rated opening distance of the contact is 4 ± 0.4mm;	Contact self closing force 85-125N;
The reaction force at the rated opening distance of the contact is 100-130N;	The contact resistance under the self closing force of the contact is less than 120 ��
The allowable wear thickness of the contact is 1mm;	Equipped with contactor CKG3-160-630A/10 type

External dimensions and installation dimensions

ZKTJ-160-630/10KV (��) type ceramic vacuum switch tube

[Ceramic arc extinguishing chamber]ZKTJ-630/6KV( ��) type ceramic vacuum switch tube

2026-6-16 14:16:21

Rated working voltage 6KV;	Rated working current 630A;	Rated connection capacity 6.3KA, 100 times
Rated breaking capacity 5.04KA, 3 times;	Rated short-time withstand current 5.04KA;	Rated short-term duration of 4S;
Power frequency withstand voltage 23KV;	Electric lifespan 100000 times	Mechanical lifespan of 1 million cycles;
The rated opening distance of the contact is 3 ± 0.3mm;	Contact self closing force 120 ± 12N;
The reaction force at the rated opening distance of the contact is 130 ± 13N;
The contact resistance under the self closing force of the contact is �� 120 �� ;
The allowable wear thickness of the contact is 1mm;
Equipped with contactor ZN6-600 type.

ZKTJ-630/6KV (II) ceramic vacuum switch tube external dimensions and installation dimensions

[Ceramic arc extinguishing chamber]ZKTJ-160/6KV( ��) type ceramic vacuum switch tube

2026-6-16 14:16:13

ZKTJ and ZKTD ceramic vacuum switch tubes use high alumina ceramics as the insulation shell and high vacuum as the medium inside the tube. Therefore, they have small volume, high voltage resistance, strong breaking ability, long service life, and do not require maintenance of the contacts. Especially due to their advantages of not exposing the arc and being safe and reliable, they are widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.

This product is equipped with a suitable operating mechanism and can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors. It is used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

Technical parameters
Rated working voltage 6KV; rated working current 160A; rated connection capacity 1.6KA, 100 times
Rated breaking capacity of 1.28KA, 25 times; Ultimate breaking capacity of 4.5KA, rated short-time withstand current of 1.28KA for 3 times;
Rated short-circuit duration of 10 seconds; power frequency withstand voltage of 23KV; electrical life of 100000 times
Mechanical lifespan of 1 million cycles; The rated opening distance of the contact is 3 ± 0.3mm; the self closing force of the contact is 85 ± 100N;
The reaction force at the rated opening distance of the contact is 100 ± 10N
The contact resistance under the self closing force of the contact is �� 120 ��
The allowable wear thickness of the contact is 1mm
Equipped with CZG1-160 contactor.

External dimensions and installation dimensions

[Ceramic arc extinguishing chamber]ZKTJ-630/6KV(1) type ceramic vacuum switch tube

2026-6-16 14:16:04

Purpose:
ZKTJ and ZKTD ceramic vacuum switch tubes use high alumina ceramics as the insulation shell and high vacuum as the medium inside the tube. Therefore, they have small volume, high voltage resistance, strong breaking ability, long service life, and do not require maintenance of the contacts. Especially due to their advantages of not exposing the arc and being safe and reliable, they are widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.

This product is equipped with a suitable operating mechanism and can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors. It is used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.
Technical parameters
Rated working voltage 6KV; rated working current 630A; rated connection capacity 6.3KA, 100 times
Rated breaking capacity 5.04KA, 25 times; Rated short-time withstand current 5.04KA; Rated short-circuit duration 10S;;
Power frequency withstand voltage 23KV; electrical life 100000 times; Mechanical lifespan of 1 million cycles
The rated opening distance of the contact is 3 ± 0.3mm; the self closing force of the contact is 125 ± 12.5mm; the reaction force at the rated opening distance of the contact is 130 ± 13N;
The contact resistance under the self closing force of the contact is �� 120 ��
The allowable wear thickness of the contact is 1mm
Equipped with contactor CKG3-630 type.

External dimensions and installation dimensions:

ZKTJ-630/6KV (1) type ceramic vacuum switch tube

[Ceramic arc extinguishing chamber]ZKTJ-160-400A/6KV(1) type ceramic vacuum switch tube

2026-6-16 14:15:56

Purpose:
ZKTJ-160-400A/6KV (1) ceramic vacuum switch tube adopts high alumina ceramic as the insulation shell, and high vacuum is used as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require contact maintenance. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industrial sectors such as coal, power, chemical, metallurgy, and petroleum.

ZKTJ-160-400A/6KV (1) ceramic vacuum switch tube, equipped with a suitable operating mechanism, can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors, used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

technical parameters

Rated working voltage 6KV;	Rated working current 160-400A;	Rated connection capacity 1.6~4KA, 100 times
Rated breaking capacity of 1.28-3.2KA, 25 times;	Ultimate breaking capacity 4.5KA, 3 times	Rated short-time withstand current 1.28-3.2KA;
Rated short-circuit duration of 10S;	Power frequency withstand voltage 23KV;	Electric lifespan 100000 times
Mechanical lifespan of 1 million cycles;	The rated opening distance of the contact is 3 ± 0.3mm;	Contact self closing force 85-100N;
The reaction force at the rated opening distance of the contact is 100 ± 120N;
The contact resistance under the self closing force of the contact is �� 120 �� ;
The allowable wear thickness of the contact is 1mm;
The maximum mass of the switch tube is 1kg;
Equipped with contactor CKG3-160-400A type.

External dimensions and installation dimensions

[Ceramic arc extinguishing chamber]ZKTJ-600/1140 type ceramic vacuum switch tube

2026-6-16 14:15:47

purpose

The ZKTJ-600/1140 ceramic vacuum switch tube uses high alumina ceramic as the insulation shell and high vacuum as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require maintenance of the contacts. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.
This product is equipped with a suitable operating mechanism and can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors. It is used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters. Single pole contactors will be particularly suitable for the renovation of street lamps and airport lighting control power departments.

Technical parameters of ZKTJ-600/1140 ceramic vacuum switch tube

Rated working voltage 1140V;	Rated working current 600A;	Rated connection capacity 6kA, 100 times
Rated breaking capacity of 4.8KA, 25 times;	Ultimate breaking capacity 6KA, 3 times	Rated short-time withstand current 4.8KA;
Rated short-circuit duration of 10S;	Power frequency withstand voltage 10KV;	Electrical lifespan AC4 5000 times
Mechanical lifespan of 1 million cycles;	The rated opening distance of the contact is 2.1 ± 0.2mm;	Contact self closing force 115 ± 11N;
The reaction force at the rated opening distance of the contact is 140 ± 14N;
The contact resistance under the self closing force of the contact is �� 100 �� ;
The allowable wear thickness of the contact is 1mm;
The maximum mass of the switch tube is 1kg;
Equipped with contactor CKJ5-600 type.

External dimensions and installation dimensions

[Ceramic arc extinguishing chamber]ZKTJ-315 and 500/1140 ceramic vacuum switch tubes

2026-6-16 14:15:39

purpose
ZKTJ and ZKTD ceramic vacuum switch tubes use high alumina ceramics as the insulation shell and high vacuum as the medium inside the tube. Therefore, they have small volume, high voltage resistance, strong breaking ability, long service life, and do not require maintenance of the contacts. Especially due to their advantages of not exposing the arc and being safe and reliable, they are widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.

This product is equipped with a suitable operating mechanism and can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors. It is used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

ZKTJ-315�� Technical parameters of 500/1140 ceramic vacuum switch tube

Rated working voltage 1140V;	Rated working current 315, 500A;	Rated connection capacity 3.15, 5kA, 100 times
Rated breaking capacity 2.52KA, 4KA, 25 times;	Ultimate breaking capacity 5KA, 3 times	Rated short-time withstand current 3.15,5KA;
Rated short-circuit duration of 10S;	Power frequency withstand voltage 10KV;	Electrical lifespan AC4 100000 times
Mechanical lifespan of 3 million cycles;	The rated opening distance of the contact is 2.0 ± 0.2mm;	Contact self closing force 50 ± 5N;
The reaction force at the rated opening distance of the contact is 65 ± 6.5N;
The contact resistance under the self closing force of the contact is �� 120 �� ;
The allowable wear thickness of the contact is 1mm;
Equipped with contactors VS317 and 507.

ZKTJ-315�� 500/1140 ceramic vacuum switch tube external dimensions and installation dimensions

[Ceramic arc extinguishing chamber]ZKTJ-400/1140 type ceramic vacuum switch tube

2026-6-16 14:15:30

purpose
The ZKTJ-400/1140 ceramic vacuum switch tube uses high alumina ceramic as the insulation shell and high vacuum as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require maintenance of the contacts. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.

This product is equipped with a suitable operating mechanism and can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors. It is used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

Technical parameters of ZKTJ-400/1140 ceramic vacuum switch tube

Rated working voltage 1140V;	Rated working current 400A;	Rated connection capacity 4KA, 100 times
Rated breaking capacity of 3.2KA, 25 times;	Ultimate breaking capacity 4.5KA, 3 times	Rated short-time withstand current 3.2KA;
Rated short-circuit duration of 10S;	Power frequency withstand voltage 10KV;	Electrical lifespan AC4 60000 times
Mechanical lifespan of 1 million cycles;	The rated opening distance of the contact is 2.0 ± 0.2mm;	Contact self closing force 100 ± 10N;
The reaction force at the rated opening distance of the contact is 125 ± 12N;
The contact resistance under the self closing force of the contact is �� 100 �� ;
The allowable wear thickness of the contact is 1mm;
The maximum mass of the switch tube is 0.75kg;
Equipped with contactor CKJ5-400 type.

External dimensions and installation dimensions:

ZKTJ-400/1140 ceramic vacuum switch tube

[Ceramic arc extinguishing chamber]ZKTJ-300/1140 type ceramic vacuum switch tube

2026-6-16 14:15:22

purpose
The ZKTJ-300/1140 ceramic vacuum switch tube uses high alumina ceramic as the insulation shell and high vacuum as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require maintenance of the contacts. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.
The ZKTJ-300/1140 ceramic vacuum switch tube, equipped with a suitable operating mechanism, can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors, used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

technical parameters
Rated working voltage 1140V; rated working current 300A; rated connection capacity 3KA, 100 times
Rated breaking capacity 2.4KA, 25 times; Ultimate breaking capacity of 4.5KA, rated short-time withstand current of 2.4KA for 3 times;
Rated short-circuit duration of 10 seconds; power frequency withstand voltage of 10KV; electrical life of AC46000 times
Mechanical lifespan of 1 million cycles; The rated opening distance of the contact is 2.0 ± 0.2mm; the self closing force of the contact is 50 ± 5N;
The reaction force at the rated opening distance of the contact is 65 ± 6.5N;
The contact resistance under the self closing force of the contact is �� 120 �� ;
The allowable wear thickness of the contact is 1mm;
The maximum mass of the switch tube is 0.5Kg;
Equipped with CJZ 300 contactor.

External dimensions and installation dimensions

[Ceramic arc extinguishing chamber]ZKTJ-250/1140 type ceramic vacuum switch tube

2026-6-16 14:15:13

Rated working voltage 1140V;	Rated working current 250A;	Rated connection capacity 2.5KA, 100 times
Rated breaking capacity of 2KA, 25 times;	Ultimate breaking capacity 4.5KA, 3 times	Rated short-time withstand current of 2KA;
Rated short-circuit duration of 10S;	Power frequency withstand voltage 10KV;	Electrical lifespan AC4 60000 times
Mechanical lifespan of 1 million cycles;	The rated opening distance of the contact is 2.0 ± 0.2mm;	Contact self closing force 50 ± 5N;
The reaction force at the rated opening distance of the contact is 65 ± 6.5N;
The contact resistance under the self closing force of the contact is �� 120 �� ;
The allowable wear thickness of the contact is 1mm;
The maximum mass of the switch tube is 0.5Kg;
Equipped with contactor CKJ5-250 type.

ZKTJ-250/1140 Ceramic Vacuum Switch Tube Dimensions and Installation Dimensions

ZKTJ-250/1140 Ceramic Vacuum Switch Tube

[Ceramic arc extinguishing chamber]ZKTJ-200/1140 type ceramic vacuum switch tube

2026-6-16 14:15:05

Purpose:
ZKTJ and ZKTD ceramic vacuum switch tubes use high alumina ceramics as the insulation shell and high vacuum as the medium inside the tube. Therefore, they have small volume, high voltage resistance, strong breaking ability, long service life, and do not require maintenance of the contacts. Especially due to their advantages of not exposing the arc and being safe and reliable, they are widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.
This product is equipped with a suitable operating mechanism and can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors. It is used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.
Technical parameters
Rated working voltage 1140V; rated working current 200A; rated connection capacity 2KA, 100 times
Rated breaking capacity 1.6KA, 25 times; Ultimate breaking capacity of 4.5KA, rated short-time withstand current of 1.6KA for 3 times;
Rated short-circuit duration of 10 seconds; power frequency withstand voltage of 10KV; electrical life of AC46000 times
Mechanical lifespan of 1 million cycles; The rated opening distance of the contact is 2.0 ± 0.2mm; the self closing force of the contact is 50 ± 5N;
The reaction force at the rated opening distance of the contact is 65 ± 6.5N
The contact resistance under the self closing force of the contact is �� 120 ��
The allowable wear thickness of the contact is 1mm
The maximum mass of the switch tube is 0.5Kg
Equipped with CJZ-200 contactor.

ZKTJ-200/1140 ceramic vacuum switch tube external dimensions and installation dimensions:

[Ceramic arc extinguishing chamber]ZKTJ-125/1140( ��) type ceramic vacuum switch tube

2026-6-16 14:14:56

purpose
ZKTJ and ZKTD ceramic vacuum switch tubes use high alumina ceramics as the insulation shell and high vacuum as the medium inside the tube. Therefore, they have small volume, high voltage resistance, strong breaking ability, long service life, and do not require maintenance of the contacts. Especially due to their advantages of not exposing the arc and being safe and reliable, they are widely used in industries such as coal, electricity, chemical, metallurgy, and petroleum.

ZKTJ-125/1140 (II) ceramic vacuum switch tube, equipped with a suitable operating mechanism, can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors, used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

technical parameters

Rated working voltage 1140V;	Rated working current 125A;	Rated connection capacity 1.25KA, 100 times
Rated breaking capacity 1KA. 25 times;	Ultimate breaking capacity 2.5KA, 3 times	Rated short-time withstand current 1KA;
Rated short-circuit duration of 10S;	Power frequency withstand voltage 10KV;	Electrical lifespan: 46000 cycles per AC
Mechanical lifespan of 1 million cycles;	The rated opening distance of the contact is 1.8 ± 0.2mm;	Contact self closing force 20 ± 3N;
The reaction force at the rated opening distance of the contact is 45 ± 5N;
The contact resistance under the self closing force of the contact is �� 120 �� ;
The allowable wear thickness of the contact is 1mm;
The maximum mass of the switch tube is 0.3KG;
Equipped with contactor CKj5-125 (ii) type;

[Ceramic arc extinguishing chamber]ZKTJ-125/1140(I) type ceramic vacuum switch tube

2026-6-16 14:14:47

Rated working voltage 1140V;	Rated working current 125A;	Rated connection capacity 1.25KA, 100 times
Rated breaking capacity 1KA. 25 times;	Ultimate breaking capacity 2. 5KA�� 3 times	Rated short-time withstand current 1KA;
Rated short-circuit duration of 10S;	Power frequency withstand voltage 10KV;	Electrical lifespan: 46000 cycles per AC
Mechanical lifespan of 1 million cycles;	The rated opening distance of the contact is 1.8 ± 0.2mm;	Contact self closing force 20 ± 3N;
The reaction force at the rated opening distance of the contact is 45 ± 5N;
Contact resistance under contact self closing force �� 120;
The allowable wear thickness of the contact is 1mm;
The maximum mass of the switch tube is 0. 3KG��
Equipped with contactor CKj5-125 (I) type;

External dimensions and installation dimensions:

ZKTJ-125/1140 (I) type ceramic vacuum switch tube

[Ceramic arc extinguishing chamber]TD34-12/2500-40C/R Ceramic vacuum arc extinguishing chamber

2026-6-16 14:14:38

Ceramic vacuum arc extinguishing chamber for TD34-12/2500-40C/R vacuum circuit breaker