Shanghai Huabang Industrial Business Network - thermal relay

[thermal relay]193EX Electronic overload relay

2026-6-11 17:21:10

193EX electronic overload relay

[thermal relay]193TX type thermal relay

2026-6-11 17:21:01

193TX type thermal relay

[thermal relay]CJR3 series thermal overload relay

2026-6-11 17:20:52

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CJR3-105B

CJR3-105

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CJR3-160

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[thermal relay]CJD3 series electronic overload relay

2026-6-11 17:20:43

The CJD3 series electronic overload relay (hereinafter referred to as "relay") is mainly used to protect three-phase AC motors in low-voltage distribution systems with AC50H rated working voltage of 690V and below, and rated working current ranging from 0.8A to 450A. This series of relays is combined with AC contactors to form an electromagnetic starting device, which protects the motor from the hazards caused by overload and phase interruption.

The CJD3 series electronic overload relay does not require an external power supply and is a new type of electrical device based on microprocessor technology. It uses a microprocessor and related electronic circuits to detect the effective value of the current in the motor circuit, and then determines whether the motor is overloaded or disconnected. Based on the magnitude of the current, the delay time is determined, and when it reaches the tripping time, the tripping mechanism is driven to activate the auxiliary contacts and disconnect the main circuit of the contactor to achieve protection. Compared with traditional bimetallic thermal relays, it has the advantages of high detection accuracy, stable operating characteristics, and energy saving.
The product complies with IEC60947-4-1 and GB 14048.4 standards and has obtained the national mandatory product certification "CCC" mark.

[thermal relay]SRMRE1 series electronic overload relay

2026-6-11 17:20:34

The SRMRE1 series electronic overload relay (hereinafter referred to as the relay) is suitable for overload and phase failure protection of three-phase AC motors that operate for a long time or intermittently for a long time with AC 50Hz/60Hz, voltage up to 690V, and current of 0.5-630A.
This relay has functions such as overload and phase failure protection, action indication, and reset. The product complies with standards such as GB14048.6, GB14048.5, IEC60947-5-1, etc. The use of IC components for sampling and processing electrical signals has the characteristics of strong anti-interference ability, reliable operation, and protection accuracy.
This relay adopts an independent installation method and can cooperate with any type of contactor with a set current range.

Normal working and installation conditions

1. Altitude: not exceeding 2000m
2. The ambient air temperature ranges from -5 �� to+40 ��. The average value within 24 hours shall not exceed+35 ��;
3. Altitude: not exceeding 2000m
4. Atmospheric conditions: At+40 ��, the relative humidity of the air does not exceed 50%; At lower temperatures, there can be higher relative humidity, with an average minimum temperature of no more than+25 �� in the wettest month and an average maximum relative humidity of no more than 90% in that month, taking into account condensation that may occur on the product due to temperature changes;
5. Installation conditions: The inclination between the installation surface and the vertical surface shall not exceed 5 °;
6. In non explosive hazardous media, where there are no gases or conductive dust present that can corrode metals or damage insulation.
8. In areas without significant shaking, impact, or vibration.

structural characteristics

1. This product uses a transformer to sample the working current of the main circuit, and at the same time uses electronic circuit signal amplification processing to drive the contact output mechanism.
2. Equipped with a continuously adjustable current setting device.
3. Three action indicator lights; Indicate normal, overload delay, overload action, phase failure delay, and phase failure action respectively.
4. It has a manual reset button.
5. It has electrically separable movable and movable breaking contacts or non separable movable and movable breaking contacts (SRMRE1-160).
The main circuits of SRMRE1-160 and SRMRE1-630 adopt a through core wiring method.

Protection features

project	serial number	Multiple of rated current		Action Time	Test conditions
overload protect	one	one point zero five		Not moving within 2 hours	Cold state begins
	two	one point two		Action within 2 hours	Hot state (after serial number 1) starts
	three	one point five		Action within 2 minutes	Hot state (after serial number 1) starts
	four	seven point two		2s��Tp��10s	Cold state begins
phase failure protect	five	Any two phases	Another phase	Not moving within 2 hours	Cold state begins
	five	one	zero point nine	Not moving within 2 hours	Cold state begins
	six	one point one five	0	Action within 2 hours	Hot state (after number 5) starts

Main technical data

project			SRMRE1-20
project			0.5-2A	1-4A	3-12A	5-20A
Rated working current A			two	four	twelve	twenty
Rated insulation voltage V			six hundred and ninety	six hundred and ninety	six hundred and ninety	six hundred and ninety
phase failure protection			have	have	have	have
Manual and automatic reset			have	have	have	have
Release indication			have	have	have	have
Relay working power supply V			AC380	AC380	AC380	AC380
auxiliary contact (Move in and move out)			separable	separable	separable	separable
Installation method			stand-alone	stand-alone	stand-alone	stand-alone
AC-15 230V Rated current A			two point five	two point five	two point five	two point five
AC-15 400V Rated current A			one point five	one point five	one point five	one point five
AC-13 220V Rated current A			zero point two	zero point two	zero point two	zero point two
conductor cross-sectional area	main circuit	Single core or twisted wire	one	one	one point five	one point five
	main circuit	Installation method	M4 screw	M4 screw	M4 screw	M4 screw
	assistant circuit	Single core or twisted wire	2×��0.5~1��	2×��0.5~1��	2×��0.5~1��	2×��0.5~1��
	assistant circuit	Terminal screw	M3.5	M3.5	M3.5	M3.5

project			SRMRE1-160			SRMRE1-630
project			5-20A	15-60A	40-160A	100-300A	210-630A
Rated working current A			twenty	sixty	one hundred and sixty	three hundred	six hundred and thirty
Rated insulation voltage V			six hundred and ninety	six hundred and ninety	six hundred and ninety	six hundred and ninety	six hundred and ninety
phase failure protection			have	have	have	have	have
Manual and automatic reset			have	have	have	have	have
Release indication			have	have	have	have	have
Relay working power supply V			AC380	AC380	AC380	AC380	AC380
auxiliary contact (Move in and move out)			inseparable	inseparable	inseparable	separable	separable
Installation method			stand-alone	stand-alone	stand-alone	stand-alone	stand-alone
AC-15 230V Rated current A			two point five	two point five	two point five	two point five	two point five
AC-15 400V Rated current A			one point five	one point five	one point five	one point five	one point five
AC-13 220V Rated current A			zero point two	zero point two	zero point two	zero point two	zero point two
conductor cross-sectional area	main circuit	Single core or twisted wire	two point five	sixteen	seventy	one hundred and eighty-five	185×2
	main circuit	Installation method	Wearing core	Wearing core	Wearing core	Wearing core	Wearing core
	assistant circuit	Single core or twisted wire	2×��0.5~1��	2×��0.5~1��	2×��0.5~1��	2×��0.5~1��	2×��0.5~1��
	assistant circuit	Terminal screw	M3.5	M3.5	M3.5	M3.5	M3.5

Selection and ordering data

Product model	Rated current A	Fuse specification (RT16) A		match Contactor model
Product model	Rated current A	Type 1 cooperation	Type 2 cooperation	match Contactor model
SRMRE1-20	0.5-2	one hundred	six	Can be used with the same current level Any model of contact The function of equipment coordination.
	1-4	one hundred	ten
	3-12	one hundred	twenty-five
	5-20	one hundred	fifty
SRMRE1-160	5-20	one hundred	fifty
	15-60	two hundred and fifty	one hundred and twenty-five
	40-160	three hundred and fifteen	two hundred and twenty-four
SRMRE1-630	100-300	five hundred	four hundred
SRMRE1-630	210-630	one thousand	eight hundred and thirty

[thermal relay]LG Thermal Overload Relay

2026-6-11 17:20:25

LG thermal overload relay

[thermal relay]GR1-9~95 series thermal overload relays

2026-6-11 17:20:14

�� Scope of application
The GR1-9~95 series thermal overload relay is mainly used in power systems with AC 50Hz (or 60Hz) and rated voltage up to 660V, for thermal overload and phase failure protection of AC motors. Can be used in conjunction with GC1-9~95: combination installation (directly inserted into the terminal of GC1-9~95) or separate installation with screws.

Technical Specifications

[thermal relay]GR1-160~630 series thermal overload relays

2026-6-11 17:20:04

Scope of application
The GR1-160-630 series thermal overload relay is mainly used in circuits with AC 50Hz or 60Hz, rated working voltage of 660V and below, and current of 160-630A to protect against motor overload, phase failure, and long starting time. It is particularly suitable for protecting motors under heavy loads.
Recommended contactors that match GR1-160-630 are listed in the matching table.

Technical Specifications

[thermal relay]TK series thermal overload relay

2026-6-11 17:19:56

TK series thermal overload relay

[thermal relay]TH-P series thermal overload relay

2026-6-11 17:19:46

Scope of application
The (TH-P) series thermal overload relay (hereinafter referred to as thermal relay) is suitable for overload and phase failure protection of AC motors that operate for a long time or intermittently for a long time with AC 50Hz/60Hz, voltage up to 690V, and current of 0.1-80A.
Thermal relays also have functions such as temperature compensation, action indication, automatic and manual reset, and stop, ensuring stable and reliable product performance.
The thermal relay complies with standards such as GB14048.4 and IEC60947-4-1.

The TH-P series thermal overload relay can be installed in conjunction with a contactor or installed independently.

Normal working conditions
Altitude: not exceeding 2000m
The ambient air temperature ranges from -5 �� to+40 ��; The average value within 24 hours shall not exceed+35 ��
Atmospheric conditions: The relative humidity should not exceed 50% at+40 ��, and higher relative humidity can be achieved at lower temperatures. The monthly average maximum relative humidity in the wettest month is 90%, and the monthly average minimum temperature in that month is+25 ��, taking into account condensation on the surface of the product due to temperature changes.
Pollution level: Level 3
Installation conditions: The inclination angle between the installation surface and the vertical surface shall not exceed ± 5 °
In non explosive hazardous media, where there are no gases or conductive dust present that can corrode metals or damage insulation.
In places with rain and snow protection equipment and not filled with water vapor.
In places without significant shaking, impact, and vibration

structural characteristics
Three phase bimetallic strip, with a trip level of 10A;
Equipped with phase failure protection
Equipped with a continuously adjustable current setting device
Equipped with temperature compensation
Having action indication
Having testing institutions
Equipped with a stop button
Equipped with manual and automatic reset buttons
Having electrically separable normally open and normally closed contacts
Installation method: Insert and install with contactor or install independently

[thermal relay]JRS2-12.5(3UA50) Thermal relay

2026-6-11 17:19:37

JRRS2-12.5 (3UA50) thermal overload relay

[thermal relay]JRS2-25(3UA52) Thermal relay

2026-6-11 17:19:29

JRRS2-25 (3UA52) thermal overload relay

[thermal relay]JRS2-32(3UA54) Thermal relay

2026-6-11 17:19:19

JRRS2-32 (3UA54) thermal overload relay

[thermal relay]JRS2-38(3UA55) Thermal relay

2026-6-11 17:19:06

JRRS2-38 (3UA55) thermal overload relay

[thermal relay]JRS2-85(3UA58) Thermal relay

2026-6-11 17:18:57

JRRS2-85 (3UA58) thermal overload relay

[thermal relay]JRS2-63(3UA59) Thermal relay

2026-6-11 17:18:48

JRRS2-63 (3UA59) thermal overload relay

[thermal relay]JRS2-D13 series thermal relay

2026-6-11 17:18:38

JRS2-D13 series thermal relay

[thermal relay]JRS2-D23 series thermal relay

2026-6-11 17:18:29

JRS2-D23 series thermal relay

[thermal relay]JRS2-D33 series thermal relay

2026-6-11 17:18:18

JRRS-D33 series thermal relay

[thermal relay]XCR8(3RU) Thermal Overload Relay

2026-6-11 17:18:09

XCR8 (3RU) thermal overload relay

Main technical parameters

	Order Number	Suitable for AC motor with P) kw	Set current range A	Fuse specification A
S00 specification, with coil and auxiliary contact lead out terminal XCR8-12	3RU11 16-0AB0	zero point zero four	0.11-0.16	zero point five
	3RU11 16-0BB0	zero point zero six	0.14-0.2	one
	3RU11 16-0CB0	zero point zero six	0.18-0.25	one
	3RU11 16-0DB0	zero point zero nine	0.22-0.32	one point six
	3RU11 16-0EB0	zero point zero nine	0.28-0.4	two
	3RU11 16-0FB0	zero point one two	0.35-0.5	two
	3RU11 16-0GB0	zero point one eight	0.45-0.63	two
	3RU11 16-0HB0	zero point one eight	0.55-0.8	four
	3RU11 16-0JB0	zero point two five	0.7-1	four
	3RU11 16-0KB0	zero point three seven	0.9-1.25	four
	3RU11 16-1AB0	zero point five five	1.1-1.6	six
	3RU11 16-1BB0	zero point seven five	1.4-2	six
	3RU11 16-1CB0	zero point seven five	1.8-2.5	ten
	3RU11 16-1DB0	one point one	2.2-3.2	ten
	3RU11 16-1EB0	one point five	2.8-4	sixteen
	3RU11 16-1FB0	one point five	3.5-5	twenty
	3RU11 16-1GB0	two point two	4.5-6.3	twenty
	1RU11 16-1HB0	three	5.5-8	twenty-five
	1RU11 16-1JB0	four	7-10	thirty-five
	1RU11 16-1KB0	five point five	9-12	thirty-five
S0 specification XCR8-25	3RU11 26-1CB0	zero point seven five	1.8-2.5	ten
	3RU11 26-1DB0	one point one	2.2-3.2	ten
	3RU11 26-1EB0	one point five	2.8-4	sixteen
	3RU11 26-1FB0	one point five	3.5-5	twenty
	3RU11 26-1GB0	two point two	4.5-6.3	twenty
	3RU11 26-1HB0	three	5.5-8	twenty-five
	3RU11 26-1JB0	four	7-10	thirty-five
	3RU11 26-1KB0	five point five	9-12.5	thirty-five
	3RU11 26-4AB0	seven point five	11-16	forty
	3RU11 26-4BB0	seven point five	14-20	fifty
	3RU11 26-4CB0	eleven	17-22	sixty-three
	3RU11 26-4DB0	eleven	20-25	sixty-three
S2 specification XCR8-50	3RU11 36-1HB0	three	5.5-8	twenty-five
	3RU11 36-1JB0	four	7-10	three point five
	3RU11 36-1KB0	five point five	9-12.5	thirty-five
	3RU11 36-4AB0	seven point five	11-16	forty
	3RU11 36-4BB0	seven point five	14-20	fifty
	3RU11 36-4DB0	eleven	18-25	sixty-three
	3RU11 36-4EB0	fifteen	22-32	eighty
	3RU11 36-4FB0	eighteen point five	28-40	eighty
	3RU11 36-4GB0	twenty-two	36-45	one hundred
	3RU11 36-4HB0	twenty-two	40-50	one hundred
S2 specification XCR8-100	3RU11 46-4DB0	three	5.5-8	twenty-five
	3RU11 46-4EB0	four	7-10	three point five
	3RU11 46-4FB0	five point five	9-12.5	thirty-five
	3RU11 46-4HB0	seven point five	11-16	forty
	3RU11 46-4JB0	seven point five	14-20	fifty
	3RU11 46-4KB0	eleven	18-25	sixty-three
	3RU11 46-4LB0	fifteen	22-32	eighty
	3RU11 46-4MB0	eighteen point five	28-40	eighty

1) Pay attention to the maximum rated working current of the product;
2) Under the conditions of 50Hz and 400V communication, the reference value of a four pole standard motor is determined by the actual starting data and rated data of the protected motor for product selection;
3) The largest fuse specification, for overload relays and coordination category 2

XCR8 (3RU) thermal overload relay appearance and installation dimensions

XCR8 (3RU) thermal overload relay

[thermal relay]JRS4-160F, 250F thermal overload relay

2026-6-11 17:18:00

JRRS-160F, 250F thermal overload relay

[thermal relay]JRS4 series thermal overload relay

2026-6-11 17:17:49

JRS4 series thermal overload relay

[thermal relay]JRS4-d series thermal overload relay

2026-6-11 17:17:39

JRRS-d series thermal overload relay

[thermal relay]JRS4_140d Thermal Overload Relay

2026-6-11 17:17:29

JRRS4_140d thermal overload relay

[thermal relay]Electronic thermal overload relay

2026-6-11 17:17:20

GSR1 electronic thermal overload relay

[thermal relay]Electronic overload relay

2026-6-11 17:17:11

GSR1-E electronic overload relay

[thermal relay]Electronic thermal relay

2026-6-11 17:17:02

LR9 electronic thermal relay

[thermal relay]LR2,LR1 Thermal relay

2026-6-11 17:16:53

Applicable:
The LR2 and LR1 thermal relay series are suitable for circuits with 50Hz or 60Hz, rated insulation voltage of 660V, and rated current of 0.1-93A. When the motor is overloaded, the protection phase is disconnected.
Relays have different mechanical structures for temperature compensation and can be used with LC1-D series AC contactors. They are the most advanced thermal relays in the world in the 1990s.

Features:
a�� Basic Parameters
(a) Rated insulation voltage 660V
(b) The rated working currents are 25A, 36A, and 93A, respectively.
(c) Current of thermal element (see table)
b�� auxiliary circuit
(a) There is a pair of N/O and N/C contacts with electronic insulation
(b) The rated insulation voltage is 500V
(c) The rated frequency is 50-60Hz
(d) Use group, rated operating voltage, specified thermal current, and rated current (see table)

Use group	ACLL			DCLL
Rated working voltage V	two hundred and twenty	three hundred and eighty	five hundred	two hundred and twenty	one hundred and ten
Rated working current A	four	three	two	zero point one	zero point two two
Specify the thermal current A	five

Specifications:

model	Amount value	Hot components
model	Amount value	Rated current (A)	Adjustment range of rated current (A)
LR2-D1301	twenty-five	zero point one six	0.10-0.16
LR2-D1302	twenty-five	zero point two five	0.16-0.25
LR2-D1303	twenty-five	zero point four zero	0.25-0.40
LR2-D1304	twenty-five	zero point six three	0.40-0.63
LR2-D1305	twenty-five	one	0.63-1.0
LR2-D1306	twenty-five	one point six	1.0-1.6
LR2-D1307	twenty-five	two point five	1.6-2.5
LR2-D1308	twenty-five	four	2.5-4.0
LR2-D1310	twenty-five	six	4.0-6.0
LR2-D1312	twenty-five	eight	5.5-8.0
LR2-D1314	twenty-five	ten	7.0-10.0
LR2-D1316	twenty-five	thirteen	10.0-13.0
LR2-D1321	twenty-five	eighteen	13.0-18.0
LR2-D1322	twenty-five	twenty-five	18.0-25.0
LR2-D23	thirty-six	thirty-two	23.0-32.0
LR2-D23	thirty-six	thirty-six	28.0-36.0
LR2-D3322	thirty-six	thirty-two	23.0-32.0
LR2-D3353	thirty-six	thirty-six	23-32
LR2-D3355	ninety-three	thirty-two	28-40
LR2-D3357	ninety-three	forty	30.0-40.0
LR2-D3359	ninety-three	fifty	38.0-50.0
LR2-D3361	ninety-three	sixty-five	48-57
LR2-D3363	ninety-three	seventy	57-60
LR2-D3365	ninety-three	eighty	63.0-80.0

[thermal relay]HR1 Series Bimetallic Thermal Overload Relay

2026-6-11 17:16:43

One Overview
The HR1 series bimetallic strip thermal overload relay is designed for overload and phase failure protection of general AC motors that operate continuously or intermittently for a long time at AC 50Hz, voltage 690V, and current 0.1-400A. It can also be used for overload protection of DC electromagnets and DC motors The relay has functions such as phase failure protection, temperature compensation, trip indication, and can automatically and manually reset. Its action is reliable and complies with standards such as IEC947-4 and GB14048.4

II Product features
The HR1 series is a bimetallic overload thermal relay with a trip rating of 10A;
Equipped with differential phase failure protection;
Equipped with adjustable current connection device
Equipped with temperature compensation;
Equipped with a trip indicator;
Equipped with a testing button
Equipped with manual reset and automatic reset buttons;
A normally open and normally closed contact that is electrically insulated from each other;
Installation methods: plug-in and independent with contactor

[thermal relay]LR2-K series thermal relay

2026-6-11 17:16:34

LR2-K series thermal relay

[thermal relay]LRD series thermal relay

2026-6-11 17:16:25

LRD series thermal relay

[thermal relay]3UA(JRS2) series thermal relay

2026-6-11 17:16:16

Applicable:
3UA thermal relay is suitable for power systems with AC 50Hz, rated operating voltage up to 660V and 1000V, and main circuit current ranging from 0.1A to 630A. It can be used to protect AC 3-phase asynchronous motors from overload and open phase hazards.
The current setting value can be adjusted, and the current setting values of many thermal components are arranged for crossover, making it convenient for customers to choose. The suitable air temperature for the product is between -25 �� and 55 ��, as the product is equipped with a temperature balancer. This relay has a disconnect NC contact operation indicator and a - test button, and all models comply with the standards of IEC2921, IEC337-1, and VDE0660.

3UA (JRS2) series thermal relay specifications:

model	Rated operation Current (A)	Rated insulation Voltage (V)	Current setting range (A)
3UA50	twelve point five	six hundred and sixty	0.1-0.16 0.16-0.25 0.25-4 0.32-0.63 0.63-0.1 0.8-1.25 1-1.6 1.25-2.1 1.6-2.5 2-3.2 2.5-4 3.2-5 4-6.3 5-8 6.3-10 8-12.5
3UA52	twenty-five	six hundred and sixty	0.1-0.16 0.16-0.25 0.25-0.4 0.4-0.63 0.63-1 0.8-1.25 1-1.6 1.25-2 1.6-2.5 2-3.2 2.5-4 3.2-5 4-6.3 5-8 6.3-10 8-1.25 10-16 12.5-20 16-25
3UA54	thirty-two	six hundred and sixty	4-6.3 6.3-10 10-16 12.5-20 16-25 20-32
3UA58	eighty	one thousand	6-25 20-32 25-40 32-50 40-57 50-63 57-70 63-80 0.1-0.16 0.16-0.25 0.25-0.4 0.4-0.63 0.63-1 0.8-1.25 1-1.6
3UA59	sixty-three	six hundred	1.25-2 1.6-2.5 2-3.2 2.-5-4 3.2-5 4-6.3 5-8 6.3-10 8-12.5 10-16 12.5-20 16-25 20-32 25-40 32-45 40-57 50-63
3UA62	one hundred and eighty	six hundred and sixty	55-80 63-90 80-110 90-120 110-135 120-150 135-160 150-180
3UA66	four hundred	one thousand	0-125 125-200 180-250 200-320 250-400
3UA68	six hundred and thirty	one thousand	320-500 400-630

[thermal relay]LR2-D(JR28) series thermal relay

2026-6-11 17:16:07

LR2-D (JR28) series thermal relay

[thermal relay]GTH,GTK series thermal relay

2026-6-11 17:15:58

GTH, GTK series thermal relay

[thermal relay]JR36B series thermal overload relay

2026-6-11 17:15:49

The JR36B series thermal relay is suitable for long-term operation or intermittent electrical appliances with AC 50Hz, voltage up to 660V, and current ranging from 0.5 to 630A. It has phase failure protection, temperature compensation, dynamic indication, action activity inspection, manual reset and automatic reset, and a button to manually disconnect normally closed contacts. The thermal relay has reliable action, beautiful appearance and easy installation, and is an ideal replacement for the JR168 series. The product meets standards such as GB14048.4-93.

Product variety and specifications
Types of thermal relays
According to the rated current level, it is divided into 7 levels: 20, 32, 63, 160, 250, 400, and 630.
The specifications for the setting current of the thermal relay and the setting current of the thermal element are shown in Table 1

JR36B series thermal overload relay model and appearance

Thermal relay model	Thermal relay setting current (A)	Hot element part number
Thermal relay model	Thermal relay setting current (A)	Component number	Set current (A)	Current regulation range
JR36B-20	twenty	one	zero point three five	0.25��0.35
		two	zero point five	0.32��0.5
		three	zero point seven two	0.45��0.72
		four	one point one	0.68��1.1
		five	one point six	1��1.6
		six	two point four	1.5��2.4
		seven	three point five	2.2��3.5
		eight	five	3.2��5
		nine	seven point two	4.5��7.2
		ten	eleven	6.8��11
		eleven	sixteen	10~16
		twelve	twenty-two	14~22
JR36B-32	thirty-two	thirteen	sixteen	10~16
		fourteen	twenty-two	14~22
		fifteen	thirty-two	20~32
JR36B-63	sixty-three	sixteen	twenty-two	14~22
		seventeen	thirty-two	20~32
		eighteen	forty-five	28~45
		nineteen	sixty-three	40~63
JR36B-160	one hundred and sixty	twenty	sixty-three	40~63
		twenty-one	eighty-five	53~85
		twenty-two	one hundred and twenty	75~120
		twenty-three	one hundred and sixty	100~160
JR36B-250	two hundred and fifty	twenty-four	two hundred	130��165��200
JR36B-250	two hundred and fifty	twenty-five	two hundred and fifty	160��200��250
JR36B-400	four hundred	twenty-six	three hundred	200��250��300
JR36B-400	four hundred	twenty-seven	four hundred	250��320��400
JR36B-630	six hundred and thirty	twenty-eight	five hundred	320��400��500
JR36B-630	six hundred and thirty	twenty-nine	six hundred and thirty	420��525��630

JR36B series thermal relays can be installed independently and can be used with various contactor ligands. The fixing method can be fixed with screws When connecting the main circuit, the appropriate connecting wire for the thermal element should be selected according to Table 3 and Table 1. The maximum load area of the connecting wire for the auxiliary circuit should not exceed 205mm2. The connecting screw should be tightened and not loose.

serial number	Set current multiple	Action temporality			initial condition	Surrounding air temperature
one	one point zero five	<2h			Cold state begins	20±5��
two	one point two	<2h			Hot state (sequential)
three	one point five	10A	<2min	��32
		ten	<4min	>32
four	seven point two	10A	2s	��32	cold state
		ten	4s	<32

JR36B series thermal overload relay

Setting current upper limit value A	>0��8	>8��12	>12��20	>20��25	>25��32	>30��50	>50��65	>65��85
Connecting wire cross-sectional area mm2	one	one point five	two point five	four	six	ten	sixteen	twenty-five
Setting current upper limit value A	>85��115	>115��150	>150��175	>175��225	>225��250	>250��275	>275��350	>350��400
Connecting wire cross-sectional area mm2	thirty-five	fifty	seventy	ninety-five	one hundred and twenty	one hundred and fifty	one hundred and eighty-five	two hundred and forty

Test current range (A)	copper busbar		copper cable
Test current range (A)	Size mm	quantity	Cross sectional area mm2	quantity
400��I��500	30*5	two	one hundred and fifty	two
500��I630	40*5	two	one hundred and fifty	two

[thermal relay]JRS1D series thermal overload relay

2026-6-11 17:15:40

Scope of application
JRS1D series thermal overload relay is used in circuits with AC 50Hz (or 60Hz), rated insulation voltage of 660V, and rated current of 0.1A~93A, as overload and phase failure protection for electric motors. And it can form a starter with the corresponding AC contactor.

Structural features
The thermal relay has a novel and beautiful design, with functions such as phase failure protection, temperature compensation, adjustable setting current, automatic and manual reset options, action indication signals, etc. The product has normally closed and normally open auxiliary contact insulation separation, small installation area, diverse installation methods, and has testing and stop buttons. It can perform flexibility checks and has a protective cover to prevent finger electric shock, ensuring safe use.

Model and meaning

Main technical parameters
1. The technical parameters of the main circuit are shown in Table 1

Table 1 Technical Parameters of Main Circuit

2. The basic parameters of auxiliary contacts are shown in Table 2
Table 2 Basic parameters of auxiliary contacts

3. The operating characteristics of the thermal relay are shown in Table 3 and Table 4 (+20 ��)
Table 3 Action characteristics during load balancing of each phase

Table 4 Action characteristics when the load of each phase is unbalanced (disconnected)

Appearance and installation dimensions
The external dimensions of the thermal relay are shown in Figures 1-3

Wiring diagram

Figure 4 Schematic diagram of wiring when the load is an electric motor
Ordering Instructions
When placing an order, the model, name, rated current level, setting current range of the thermal element, installation method, and order quantity of the thermal relay should be specified. For example, 20 JRS1D-36/Z type thermal relays with a set current of 7-10A.

[thermal relay]M-Z5C series thermal overload relay

2026-6-11 17:15:31

M-Z5C series thermal overload relay model

Model and appearance	model	Set current range	External dimensions and installation dimensions
M-Z5C	M-Z5C-50 M-Z5C-70 M-Z5C-80 M-Z5C-93 M-Z5C-104	35~50A 55~70A 63~80A 80~93A 80~104A

M-Z5C series thermal overload relay

[thermal relay]M-Z1C series thermal overload relay

2026-6-11 17:15:22

Model and appearance	model	Set current range	External dimensions and installation dimensions
M-Z1C	M-Z1C-25 M-Z1C-32 M-Z1C-40 M-Z1C-50 M-Z1C-65	17-25A 23~32A 30~40A 37-65A 48-65A

M-Z1C series thermal overload relay

[thermal relay]M-Z00C series thermal relay

2026-6-11 17:15:13

Model and meaning
The M-Z00C series thermal relay is used in circuits with AC 50/60Hz, voltage up to 660V, current up to 93A and below, for thermal protection of AC motors. It also has a differential mechanism and temperature compensation link, and can be equipped with M-DIL AC contactors or installed independently.

Model and meaning

Model and appearance	model	Set current range	External dimensions and installation dimensions
M-Z00C	M-Z00C-0.16 M-Z00C-0.25 M-Z00C-0.4 M-Z00C-0.63 M-Z00C-1 M-Z00C-1.6 M-Z00C-2.5 M-Z00C-4 M-Z00C-6 M-Z00C-8 M-Z00C-10 M-Z00C-13 M-Z00C-18 M-Z00C-25	0.1~0.16 0.16~0.25 0.25~0.4 0.4~0.63 0.63~1 1~1.6 1.6~2.5 2.5~4 4~6 5.5~8 7~10 9~13 12~18 17~25

[thermal relay]RHN series thermal overload protection relay

2026-6-11 17:15:04

RHN series thermal overload protection relay

Obtained certifications such as 3C, CE, UL, TUV, CSA, etc.
Compliant with standards such as GB, IEC, BS, JIS, NEMA, etc.
Equipped with overload protection and under phase protection. According to customer protection needs, different protection modes can be selected (K-type: two sets of thermal resistors). M-type: Three sets of thermal resistors. Type A: with under phase protection function)
Newly designed independent auxiliary contacts, 1a1b auxiliary contacts facilitate wiring and make operation more reliable.
The terminal of the thermal overload protection relay has an IP20 safety cover design, which can protect personal safety.
Manual and automatic reset functions.
The control contacts are designed above for easy wiring operations.
The RHN-10 design is smaller than other similar products of the same brand, which can save control cabinet space.

RHN series thermal overload protection relay
model			RHN-5	RHN-10
Rated insulation voltage (Ui) IEC V			six hundred and sixty	six hundred and sixty
Adjustment range of setting current			0.3~0.45 2.4~3.6 0.45~0.67 3.5~5.0 0.67~1.0 4.0~6.0 1.0~1.5 5.5~8.5 1.4~2.1 8.5~12.5 1.8~2.7	0.3~0.45 2.4~3.6 17~24 0.45~0.67 3.5~5.0 22~30 0.67~1.0 4.0~6.0 1.0~1.5 5.5~8.5 1.4~2.1 8.5~12.5 1.8~2.7 12.5~18
Contact capacity (A)	AC15	120V	six	six
		240V	three	three
		380V	one point nine	one point nine
		480V	one point five	one point five
	DC13	125V	zero point five five	zero point five five
	DC13	240V	zero point two seven	zero point two seven
Paired with contactors			CN-6/9A	CN-11/16/18/23/10A/12A/18A/25A/32A
protection method			Overload protection+under phase protection	Overload protection+under phase protection

RHN series thermal overload protection relay
model			RHN-80/��1	RHN-80/��2	RHN-80/��3	RHN-80/��P
Rated insulation voltage (Ui) IEC V			six hundred and sixty	six hundred and sixty	six hundred and sixty	six hundred and sixty
Adjustment range of setting current			17~25 23~32 30~40	17~25 37~50 23~32 48~65 30~40	30~40 63~80 37~50 77~97 48~65	17~25 37~50 77~97 23~32 48~65 30~40 63~80
Contact capacity (A)	AC15	120V	six	six	six	six
		240V	three	three	three	three
		380V	one point nine	one point nine	one point nine	one point nine
		480V	one point five	one point five	one point five	one point five
	DC13	125V	zero point five five	zero point five five	zero point five five	zero point five five
	DC13	240V	zero point two seven	zero point two seven	zero point two seven	zero point two seven
Paired with contactors			CN-18/23/25A/32A	CN-25/35/38A	CN-50/65/80	Directly installed on the guide rail
protection method			Overload protection+under phase protection	Overload protection+under phase protection	Overload protection+under phase protection	Overload protection+under phase protection

[thermal relay]JR36 series thermal overload relay

2026-6-11 17:14:55

JR36 series thermal overload relay, hereinafter referred to as thermal relay. Mainly used for overload protection and phase failure protection of three-phase AC motors with AC 50Hz, rated voltage up to 690V, and current up to 160A. It can also be combined with CJT1, a substitute product for CJ10, to form a magnetic starter.

The JR36 series thermal overload relay is an improved design on JR6B, and its installation method and dimensions are exactly the same as JR6B, making it a substitute product for JR6B.

The JR36 series thermal overload relay not only has overload protection and phase failure protection functions, but also has the following structural characteristics:
4.1 Temperature compensation is available;
4.2 Check the flexibility of movements;
4.3 There is a convertible manual reset or automatic reset;
4.4 There is a button for manually disconnecting normally closed contacts.

5.1 Protection Characteristics
5.1.1 The action characteristics of three-phase load averaging are shown in Table 1

JR36 series thermal overload relay

[thermal relay]TGR36(JR36) series thermal overload relay

2026-6-11 17:14:46

The TGR36 (JR36) series thermal overload relay is suitable for long-term operation or intermittent long-term operation with AC 50Hz/60Hz, voltage up to 690V, and current ranging from 0.25 to 160A ..

[thermal relay]JR29 series thermal overload relay

2026-6-11 17:14:37

The JR29 series thermal overload relay is suitable for long-term operation or intermittent long-term operation with AC 50Hz or 60Hz, voltage up to 690V, and current ranging from 0.1 to 500A ..

[thermal relay]JR28 series thermal overload relay

2026-6-11 17:14:28

JR28 (LR2) series thermal overload relay (hereinafter referred to as thermal relay) is suitable for overload and phase failure protection of AC motors with AC 50Hz or 60Hz, voltage up to 690V, and current ranging from 0.1-630A during long-term operation or intermittent long-term operation.

The thermal relay has functions such as phase failure protection, temperature compensation, action indication, automatic and manual reset, and stop. The product operates reliably.

This product complies with standards such as GB14048.4 and IEC60947-4-1.
The thermal relay can be connected and installed with the contactor, or installed independently. This product forms an electromagnetic starter with the CJX2 series contactor.

[thermal relay]JR20 series thermal overload relay

2026-6-11 17:14:19

JR20 series thermal overload relay is suitable for long-term operation or intermittent long-term operation of AC 50Hz/60Hz, voltage up to 660V, and current 0.1-630A

.

[thermal relay]JRS5 series thermal overload relay

2026-6-11 17:14:09

1�� Scope of application
The JRS5 (TH-K) and JRS6 (TH-N) series thermal overload relays are suitable for overload protection of general AC motors that operate for a long time or intermittently for a long time, with AC 50 or 60Hz, voltage up to 660V, and current up to 105A. This thermal relay has functions such as phase failure protection, temperature compensation, and trip indication, and can automatically and manually switch positions with reliable operation. It is a product manufactured by Mitsubishi Corporation in Japan.

2�� Model and meaning

3�� JRS5 series thermal overload relay action characteristics

serial number	The action current is expressed in multiples of the set current		Action time (TP)	work status	Environmental temperature (��)
one	one		��2h	Cold state begins	+55
	one point zero five				+20. -5
two	one point two		��2h	Hot state begins	+20. +55
	one point three				-5
three	one point five			Hot state begins	+20
four	seven point two zero			Cold state begins	+20
Note: Hot state - start heating with the corresponding current in item 1 until stable
serial number	The action current is expressed in multiples of the set current		Action Time	work status	Environmental temperature (��)
	Any two phases	Third phase			+20
one	one	<��DIV align=center>0.9	��2h	Cold state begins
two	one point one five	0	��2h	Hot state begins

4�� Main technical parameters:

model	Rated current of thermal relay (A)	Thermal element		Electric motor capacity (KW)
model	Rated current of thermal relay (A)	Rated current (A)	Rated current adjustment range (A)	AC380V	AC500V
JRS5-12/Z ��TH-K12��	thirteen	zero point two four	0.2��0.28	zero point zero six	zero point zero nine
		zero point three five	0.28��0.42	zero point zero nine	zero point one two
		zero point five	0.4��0.6	zero point one two	zero point one eight
		zero point seven	0.55��0.85	zero point one eight	zero point two five
		zero point nine	0.7��1.1	zero point two five	zero point three seven
		one point three	1��1.6	zero point three seven	zero point five five
		one point seven	1.4��2	zero point five five	zero point seven five
		two point one	1.7��2.5	zero point seven five	one point one
		two point five	2~3	one point one	one point five
		three point six	2.8��4.4	one point five	two point two
		five	4~6	two point two	three
		six point six	5.2��8	three point seven	three point seven
		nine	7~11	three point seven	five point five
		eleven	9~13	five point five	seven point five
JRS5-20/F ��TH-K20��	forty	fifteen	12~18	7\5\9	nine
		nineteen	16~22	eleven	eleven
		twenty-two	18~26	eleven	fifteen
		twenty-nine	24~34	fifteen	eighteen point five
		thirty-five	30~40	eighteen point five	twenty-two
TH-K60	one hundred and five	forty-two	34~50	twenty-two	3��0
		fifty-four	43~65	thirty	thirty-seven
		sixty-seven	54~80	thirty-seven	forty-five
		eighty-two	65~93	forty-five	fifty-five
		ninety-five	85~105	fifty-five

[thermal relay]JRS2 series thermal overload relay

2026-6-11 17:14:00

JRS2 series thermal overload relay is suitable for long-term operation with AC 50Hz/60Hz, rated voltage of 690V, 1000V, and current of 0.1-630A ..

[thermal relay]JRS1 series thermal overload relay

2026-6-11 17:13:51

JRS1 (LR2-D) series thermal overload relay is used in power systems with AC 50Hz (or 60Hz) and rated voltage up to 660V, as a phase failure protection for overload of AC motors.

JRS1 series thermal overload relay specifications:

Appearance and installation dimensions:

JRS1-25/Z��LR2-D13��

JRS1-40/Z��LR2-D23��

JRS1-93/Z��LR2-D33��

[thermal relay]T(TSA45P) series thermal overload relay

2026-6-11 17:13:42

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0.14-0.21	0.16-0.25	0.35-0.52	22-32	36-52	110-160	160-250	160-250
0.19-0.29	0.25-0.4	0.45-0.63	29-42	45-63	140-200	250-400	250-400
0.27-0.4	0.4-0.63	0.55-0.83	36-52	57-82
0.35-0.52	0.63-1.0	0.7-1.0	45-63	70-105
0.42-0.63	1.0-1.4	0.86-1.3	60-80	80-115
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0.70-1.0	1.7-2.4	1.4-2.1
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2.7-4.0	10-14	7-10
3.0-4.5	13-19	8.6-13
4.0-6.0	18-25	11-16
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6.3-9.0		18-27
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