Shanghai Huabang Industrial Business Network - Miniature transformer

[Miniature transformer]CT600 type current transformer

2026-6-15 20:46:12

Length mm

two hundred and eighty

three hundred and seventy

four hundred and fifty

Specification A/mv

two hundred

/30

three hundred and fifteen

/50

four hundred

/60

six hundred and thirty

/100

eight hundred

/100

one thousand

/200

one thousand two hundred and fifty

/200

one thousand and six hundred

/200

two thousand

/200

two thousand and five hundred

/200

three thousand one hundred and fifty

/200

three thousand and two hundred

/200

three thousand and nine hundred

/250

four thousand

/250

five thousand

/250

five thousand and nine hundred

/250

six thousand and three hundred

CT600 type current transformer

[Miniature transformer]VHL series miniature precision current transformer

2026-6-15 20:46:04

VHL series miniature precision current transformer

[Miniature transformer]CTS100A,CTS200A Miniature current transformer

2026-6-15 20:45:54

Characteristics of CTS100A and CTS200A miniature current transformers:

1. Active type, customizable input/output current
2. Compact and lightweight, easy to install
3. High electromagnetic isolation, high precision, and no drift
4. ABS flame retardant shell, fully resin sealed, high pressure resistance, high reliability

model	CTS100A	CTS200A
Application scenarios	Fixed terminal output type	Fixed terminal output type
Rated input	1.5(6A)	100A
rated output	5(20mA)	20mA
accuracy class	0.1%	0.1%
Maximum phase shift	10��	5��
load resistor	5/10/20/100��	5/10/20/100��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	20A	120A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram
Kind reminder	The input current of the primary side is 1-20A (specified when ordering), and the output current of the secondary side is 1-20mA (specified when ordering). The secondary side can be directly sampled by resistance	Primary input current 1~120A (specified when ordering) Secondary output current 10~40mA��

CTS100A, CTS200A miniature current transformers

[Miniature transformer]CTY500,CTY600 Miniature anti DC shunt current transformer

2026-6-15 20:45:45

Technical features of CTY500 and CTY600 miniature anti DC shunt current transformers:

Active type, customizable input/output current
Compact and lightweight, easy to solder directly onto printed circuit boards
High electromagnetic isolation, high precision, and no drift
ABS flame retardant shell, fully resin sealed, high pressure resistance, high reliability

Model number	CTY500	CTY600
Physical appearance picture
Application scenarios	Lead output type	Lead output type
Rated input	100A	200A
rated output	20mA	40mA
accuracy class	0.1%	0.1%
Maximum phase shift	10 ��	5 ��
load resistor	5/10/20/100 ��	5/10/20/100 ��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	100A	200A
Normal working environment	Environmental temperature: -25~60�� Humidity: 5%~95% Atmospheric pressure: altitude 2000M and below(For applications in high-altitude areas, please specify when placing an order))
Appearance and installation diagram
Appearance and installation diagram
Reminder	Primary input current 1~100A(Specify when ordering)��Secondary output current of 1-20mA(Specify when ordering)��Secondary direct resistance sampling	Primary input current 1-200A(Specify when ordering)��Secondary output current 1~40mA(Specify when ordering)��Secondary direct resistance sampling

[Miniature transformer]CTY105A,CTY205A Miniature current transformer

2026-6-15 20:45:36

Characteristics of CTY105A and CTY205A miniature current transformers:

1. Active type, customizable input/output current
2. Compact and lightweight, easy to solder directly onto printed circuit boards
3. High electromagnetic isolation, high precision, and no drift
4. ABS flame retardant shell, fully resin sealed, high pressure resistance, high reliability

model	CTY105A	CTY205A
Application scenarios	Printed circuit board direct soldering type	Printed circuit board direct soldering type
Rated input	5A	5A
rated output	2.5mA	2.5mA
accuracy class	0.1%	0.1%
Maximum phase shift	10��	5��
load resistor	5/10/20/100��	5/10/20/500��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	50A	120A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram

CTY105A, CTY205A miniature current transformers

[Miniature transformer]CTY4120A Miniature anti DC shunt current transformer

2026-6-15 20:45:27

CTY4120A miniature anti DC shunt current transformer

Model number	CTY>4120A
Application scenarios	Printed circuit board direct soldering type
Rated input	5-120A
rated output	2-25mA
accuracy class	0.1%
Maximum phase shift	5��
load resistor	5/10/20/100��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	160A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram
Kind reminder	Primary input current 1-10A (specified when ordering) Secondary output current 1-25mA (specified when ordering)

Technical features:

Active type, customizable input/output current
Compact and lightweight, easy to solder directly onto printed circuit boards
High electromagnetic isolation, high precision, and no drift
ABS flame retardant shell, fully resin sealed, high pressure resistance, high reliability

[Miniature transformer]CTY3100A Miniature anti DC shunt current transformer

2026-6-15 20:45:17

Model number	CTY3100A
Application scenarios	Printed circuit board direct soldering type
Rated input	5-100A
rated output	2-20mA
accuracy class	0.1%
Maximum phase shift	10��
load resistor	5/10/20/100��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	120A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram
Kind reminder	Primary input current 1-100A (specified when ordering) Secondary output current 1-20mA (specified when ordering)

Technical characteristics:

Active type, customizable input/output current
Compact and lightweight, easy to solder directly onto printed circuit boards
High electromagnetic isolation, high precision, and no drift
ABS flame retardant shell, fully resin sealed, high pressure resistance, high reliability

[Miniature transformer]CTY610A Miniature current transformer

2026-6-15 20:45:08

Model number	CTY610A
Application scenarios	Lead output type
Rated input	500A
rated output	5A
accuracy class	0.1%
Maximum phase shift	10��
load resistor	5/10/20/100��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	1000A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram
Kind reminder	The input current of the primary side is 1-1000A (specified when ordering), and the output current of the secondary side is 1010mA~1A (specified when ordering). The secondary side can be directly sampled by resistance

[Miniature transformer]CT640A Miniature current transformer

2026-6-15 20:44:59

CT640A Miniature Current Transformer

Model number	CT640A
Application scenarios	Fixed terminal output type
Rated input	300A
rated output	5A
accuracy class	0.1%
Maximum phase shift	5��
load resistor	5��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	800A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram
hint	Primary input current 1~800A (specified when ordering) Secondary output current 1~5A (specified when ordering)

Technical features of CT640A miniature current transformer:

Active type, customizable input/output current
Compact and lightweight, easy to solder directly onto printed circuit boards
High electromagnetic isolation, high precision, and no drift
ABS flame retardant shell, fully resin sealed, high pressure resistance, high reliability

[Miniature transformer]CT480A Miniature current transformer

2026-6-15 20:44:50

CT480A Miniature Current Transformer

Model number	CT480A
Application scenarios	Lead output type
Rated input	50A
rated output	20mA
accuracy class	0.1%
Maximum phase shift	10��
load resistor	5/10/20/100��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	80A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram
Kind reminder	Primary input current 1~80A (specified when ordering) Secondary output current 1~40mA (specified when ordering) Secondary direct resistance sampling is available

[Miniature transformer]CT305A Miniature current transformer

2026-6-15 20:44:42

Model number	CT305A
Application scenarios	Lead output type
Rated input	5A
rated output	5mA
accuracy class	0.1%
Maximum phase shift	10��
load resistor	5/10/20/100��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	50A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram
Kind reminder	The input current of the primary side is 1-50A (specified when ordering), and the output current of the secondary side is 1-20mA (specified when ordering). The secondary side can be directly sampled by resistance

Technical features:
Active type, customizable input/output current
Compact and lightweight, easy to solder directly onto printed circuit boards
High electromagnetic isolation, high precision, and no drift
ABS flame retardant shell, fully resin sealed, high pressure resistance, high reliability

[Miniature transformer]CT5100 Miniature current transformer

2026-6-15 20:44:33

CT5100 Miniature Current Transformer

Model number	CT5100A
Physical appearance picture
Application scenarios	Lead output type
Rated input	100A
rated output	40mA
accuracy class	0.1%
Maximum phase shift	5��
load resistor	5/10/20/100��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	120A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram
hint	The input current of the primary side can be 1-10A (specified when ordering), and the output current of the secondary side can be 1-50mA (specified when ordering)

Technical characteristics:
Active type, customizable input/output current
Compact and lightweight, easy to solder directly onto printed circuit boards
High electromagnetic isolation, high precision, and no drift
ABS flame retardant shell, fully resin sealed, high pressure resistance, high reliability

[Miniature transformer]CT264A,CT274A Miniature current transformer

2026-6-15 20:44:24

Micro current transformer - CT series

Technical features:

Model number	CT264A	CT274A
Physical appearance picture
Application scenarios	Lead output type	Lead output type
Rated input	5A	5A
rated output	2.5mA	2.5mA
accuracy class	0.1%	0.1%
Maximum phase shift	10��	5��
load resistor	5/10/20/100��	5/10/20/100��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	50A	80A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram
Kind reminder	The input current of the primary side is 1-50A (specified when ordering), and the output current of the secondary side is 1-20mA (specified when ordering). The secondary side can be directly sampled by resistance or standard amplification circuit can be used	The input current of the primary side is 1~80A (specified when ordering), and the output current of the secondary side is 1~20mA (specified when ordering). The secondary side can be directly sampled by resistance or used

Active type, customizable input/output current
Compact and lightweight, easy to solder directly onto printed circuit boards
High electromagnetic isolation, high precision, and no drift
ABS flame retardant shell, fully resin sealed, high pressure resistance, high reliability

[Miniature transformer]CT286A,CT254A Miniature current transformer

2026-6-15 20:44:15

CT286A, CT254A miniature current transformers

Model number	CT254A	CT286A
Physical appearance picture
Application scenarios	Printed circuit board direct soldering type	Printed circuit board direct soldering type
Rated input	5A	150A
rated output	2.5mA	2.5mA
accuracy class	0.1%	0.1%
Maximum phase shift	10'	5'
load resistor	/100��	/100��
power frequency withstand voltage	3000V/50Hz/1min
overload capacity	100A	80A
Normal working environment	Environmental temperature: -25~60 �� Humidity: 5%~95% Atmospheric pressure: at an altitude of 2000M or below (for use in high-altitude areas, please specify when placing an order)
Appearance and installation diagram
Appearance and installation diagram
hint	The input current of the primary side is 1-100A (specified when ordering), and the output current of the secondary side is 1-20mA (specified when ordering). The secondary side can be directly sampled by resistance or standard amplification circuit can be used. (See Figure P...)	The input current of the primary side can be 1~80A (specified when ordering), and the output current of the secondary side can be 1~16mA (specified when ordering). The secondary side can be directly sampled by resistance or standard amplification circuit can be used. (See Figure P...)

Technical features of CT286A and CT254A miniature current transformers:
Active type, customizable input/output current
Compact and lightweight, easy to solder directly onto printed circuit boards
High electromagnetic isolation, high precision, and no drift

ABS flame retardant shell, fully resin sealed, high pressure resistance, high reliability

[Miniature transformer]CT21 series miniature current transformers

2026-6-15 20:44:06

CT21 series miniature current transformer

[Miniature transformer]PT35 series miniature voltage transformers

2026-6-15 20:43:58

Product specifications: 100V/1V, 100V/1V * 2
Product advantages: high precision, wide linearity
Main Market: Instruments and Meters

PT35 series miniature voltage transformer

[Miniature transformer]PT01-4 series miniature voltage transformers

2026-6-15 20:43:47

Input voltage: 100V, 150V, 220V, 380V, 450V (0--1000V)
Output voltage: 0.1V (100 ohm load)

When in use, a current limiting resistor should be added to the primary to convert the primary current into milliampere level current, and the secondary can obtain any voltage through an operational amplifier. Easy to use, completely electrically isolated.
Belonging to current type voltage transformer
Current ratio: 1 mA/1mA
2mA/2mA
High precision, 0.1 level

compact size
PT01-3: Length x Width x Height=20.7x19.2x20.7 (Unit: mm)
Pin distance: 12.7 * 10.2
Electrical isolation, withstand voltage up to 2500V
Instruments and meters, power transmitters, intelligent high-voltage switches

PT01-4 series miniature voltage transformer

[Miniature transformer]PT01-3 series miniature voltage transformers

2026-6-15 20:43:37

PT01-3 series miniature voltage transformer

Product specifications: Input voltage: 100V, 150V, 220V, 380V, 450V (0-1000V)
Output voltage: 0.1V (100 ohm load)

When in use, a current limiting resistor should be added to the primary to convert the primary current into milliampere level current, and the secondary can obtain any voltage through an operational amplifier. Easy to use, completely electrically isolated.
Belonging to current type voltage transformer
Current ratio: 1 mA/1mA
2mA/2mA
Product advantages: High precision, 0.1 level

compact size
PT01-3: Length x Width x Height=20.7x19.2x20.7 (Unit: mm)
Pin distance: 12.7 * 10.2
Electrical isolation, withstand voltage up to 2500V
Main markets: Instruments and meters, power transmitters, intelligent high-voltage switches

PT01-3 series miniature voltage transformer

[Miniature transformer]PT01-2 series miniature voltage transformers

2026-6-15 20:43:28

Product specifications: Input voltage: 100V, 150V, 220V, 380V, 450V (0-1000V)
Output voltage: 0.4V (200 ohm load)
Length x width x height=27x26.4x15.7 (unit: mm)

Pin distance: 22.8 * 16
Product advantages: Accuracy level: 0.1

Voltage isolation
When in use, a current limiting resistor should be added to the primary level
Current ratio: 1mA/1mA; 2mA/2mA
Main markets: Instruments and meters, power transmitters, intelligent high-voltage switches

PT01-2 series miniature voltage transformer

[Miniature transformer]PT01-1 series miniature voltage transformers

2026-6-15 20:43:19

Product specifications: Input voltage: 100V, 150V, 220V, 380V, 450V
Output voltage: 0.1V
Length x width x height=26.7x17.7x28.4 (unit: mm)

Pin distance: 20 * 10

Please add a current limiting resistor when using,
1mA/1mA; 2mA/2mA
Product advantages: Accuracy level: 0.1
The linearity is up to 0.1%, with a difference of less than 5 '
Main markets: Instruments and meters, power transmitters, intelligent high-voltage switches, voltage measurement

PT01-1 series miniature voltage transformer

[Miniature transformer]CT17 series miniature current transformers

2026-6-15 20:43:10

CT17 series miniature current transformer specifications: CT17-100:40A/40mA;

CT17-200:40A/20mA; 20A/10mA;
Product advantages: ID/OD * H £ º 10.4/26.5 * 15
pin space:15.0/4.2*10.8

[Miniature transformer]CT15-5 series miniature precision current transformer

2026-6-15 20:43:01

Current ratio: 5A/2.5mA

Size specifications:
Length x width x height=19.2X17.6x17.6 (unit: mm)

Through hole: �� 4.0
Pin distance: 12.5/10.8 * 16.4
Product specifications: Current ratio: 5A/2.5mA

CT15-5 series miniature precision current transformer

[Miniature transformer]CT15-4 series miniature precision current transformer

2026-6-15 20:42:52

CT15-4 series miniature precision current transformer

Product specifications: Current ratio: 5A/1mA, 5A/2mA, 5A/2.5mA
1A/2mA, 1A/2.5mA
Size specifications:
Length x width x height=21.4x19.7x19 (unit: mm)

Through hole: �� 3.4
Pin distance: 11.2//13.2 * 16.4
Product advantages: High precision, 0.1, 0.2
Main markets: Instruments and meters, power transmitters, automatic control systems

CT15-4 series miniature precision current transformer

[Miniature transformer]CT14 series miniature current transformers

2026-6-15 20:42:44

CT14 series miniature current transformer

CT14 : 5A/5mA
5A/2.5mA
5A/2mA

Product specifications: Size: Inner diameter/Outer diameter * Thickness (mm)
4.8/16.8*10
Foot distance: 12.5 (mm),
Product advantages: Small size
Main markets: instrumentation, electrical measuring instruments, automatic control, power systems

[Miniature transformer]CT11 series miniature current transformers

2026-6-15 20:42:35

Product specifications: Current ratio:
5A/5mA,5A/7.5mA,10A/5mA,10A/10mA,20A/10mA,25A/10mA,30A/10mA; 50A/10mA; 50A/50mA

Mechanical dimensions: 8.4/30 * 16.5
Product advantages: Accuracy level: 0.1, 0.2
Main markets: Instruments and meters, power transmitters, and electricity meters

CT11 series miniature current transformer

[Miniature transformer]CT10 series miniature current transformers

2026-6-15 20:42:26

CT10 series miniature current transformer

Product specifications: CT10-1:5A/2.5mA, 5A/2mA, 10A/4mA;

CT10-2:20A/8mA,40A/16mA,30A/15m:
CT10-3:60A/24mA,50A/20mA,100A/50mA;
CT10-4:200A/100mA,150A/75mA;

Mechanical dimensions: (ID/OD * HT) (mm)
CT10-1: 6.9/23.5*11
CT10-2: 9.0/26*17
CT10-3: 12.8/37.5*14
CT10-4: 18.6/50*20

Foot distance: (mm)
CT10-1��15.2 / 19* 10
CT10-2: 15.2 / 19* 16
CT10-3��25.4 / 33* 13
CT10-4: 30 / 37.5* 19
Product advantages: Accuracy level: 0.1, 0.2

The CT10 series miniature current transformer can achieve a linearity of 0.1% and a phase difference of less than 5��

Main markets: Instruments and meters, power transmitters, automatic control

[Miniature transformer]CT09 type miniature current transformer

2026-6-15 20:42:17

Product specifications: Current ratio:

CT09-100:5A/5mA; 10A/10mA;
CT09-200:10A/5mA;; 20A/10mA;
CT09-250:25A/10mA; 5A/2mA
CT09-300:30A/10mA;

Size: Inner diameter/outer diameter * thickness (mm)
7.0/23.5*12.5
Foot distance: 15.2/19 * 11 (mm),
Pin: 1 mm
Another lead output method available:

Product advantages: Accuracy level: 0.1; zero point two

Can achieve a linearity of 0.1%,
Difference less than 5��
Main markets: instrumentation, electrical measuring instruments, automatic control, power systems

CT09 type miniature current transformer

[Miniature transformer]CT31 type miniature current transformer

2026-6-15 20:42:08

CT31 miniature current transformer specifications: 1.5A (6)/5mA, 1.5A (6)/7.5mA, 3A (9)/5mA

Including three components and two components

Size:
99*23*32 (in:mm)
Product advantages: Accuracy level: 0.1 level

High precision current transformers with precision levels of 0.05 and 0.02; Input 1.5A (6), output 50 (200) mV, non-linear ratio difference<<0.02%, non-linear angle difference<<0.6 points

Main markets: Electronic energy meters, IC card energy meters, 0.2S energy meters

[Miniature transformer]CT19-1 series miniature current transformers

2026-6-15 20:42:00

Product specifications: 5A (20)/5mA, 10A (40)/5mA,
5A(30)/5mA,5A(30)/3.33mA,
10A(40)/10mA,10A(60)/5mA,
10A(80)/5mA,10A(100)/5mA,
20A(80)/20mA,20(100)/20mA,
15A(60)/15mA,1.5A(6)/5mA,
1.5A(9)/5mA,1.5A(6)/7.5mA,
2.5A(10)/5mA;

Mechanical dimensions: 30.6 * 33 * 32.5 (mm)

Mainly used for electronic energy meters, prepaid, and multi rate energy meters
Product advantages: Accuracy level: 0.1, 0.2

High precision current transformers with precision levels of 0.05 and 0.02; Input 1.5A (6), output 50 (200) mV, non-linear difference<<0 02%, non-linear angle difference<<0.6 points

Main markets: Electronic energy meters, IC card meters

CT19-1 series miniature current transformer

[Miniature transformer]CT08 type miniature current transformer

2026-6-15 20:41:51

Product specifications: Current ratio:
1mA/1mA; 2mA/1mA; 10mA/1mA; 100mA/1mA;
1A/1mA; 1A/2mA; 2A/1mA;
2mA/2mA
5mA/5mA; 10mA/5mA; 50mA/5mA
20mA/10mA; 20mA/20mA; 50mA/10mA; 100mA/10mA;
5A/2mA; 5A/2.5mA; 20A/10mA

Primary current: 1mA -1 A, any suitable, with built-in winding
5A or above is considered as external piercing

Product advantages: length x width x height=27x26.4x17.5 (unit: mm)

Pin distance: 22.8 * 16

Through hole: 6mm
Accuracy level: 0.1

Instrumentation, transmitters, intelligent control series

CT08 type miniature current transformer

[Miniature transformer]CT20 type miniature current transformer

2026-6-15 20:41:42

Product specifications:	Model Initial Current (A)/Secondary Current (A) Type IP (A) / Is (A) CT20-50 50 / 0.1 ��0.5,1 or 5) CT20-100 100 / 0.1 ��0.5,1 or 5) CT20-150 150 / 0.1 ��0.5,1 or 5) CT20-200 200 / 0.1 ��0.5,1 or 5) CT20-250 250 / 0.1 ��0.5,1 or 5)
Product advantages:	Accuracy: 0.5 ; zero point two Mechanical dimensions: 60 * 33 * 80
Main markets:	Automatic control, overload protection, power system.

CT20 type miniature current transformer

[Miniature transformer]CA series current transformers

2026-6-15 20:41:33

CA series current transformer

[Miniature transformer]A250 type active transient current transformer

2026-6-15 20:41:25

Technical characteristics and related parameters of A250 active transient current transformer:
Characteristics:

The A250 active transient current transformer does not contain ferromagnetic materials, has no hysteresis effect, and has almost zero phase error; There is no magnetic saturation phenomenon, so the measurement range can range from several amperes to several hundred kiloamperes of current; The structure is simple and there is no direct circuit connection between it and the measured current; The response bandwidth is 0.1HZ-1MHz. Compared with traditional transformers with iron cores, it has a wide measurement range, high accuracy, stability and reliability, response frequency bandwidth, as well as measurement and relay protection functions. It is small in size, light in weight, safe, and meets environmental protection requirements. Due to the characteristics of real-time current measurement, fast response speed, no saturation, and almost no phase error, this type of current transformer can be applied in situations where signal distortion is severe, such as relay protection, thyristor rectification, frequency conversion speed regulation, resistance welding, etc.

Disadvantages:
Due to limitations in manufacturing processes and materials, the accuracy of a normal 50Hz sine wave is not as good as that of conventional transformers. It can reach a maximum level of 0.2.

Parameters:
Input current: 0-300A
Output voltage: current differential di/dt 1mV5%/A (50Hz)
Response frequency: 1Hz~500KHz
Linearity: 0.5%, 0.2%
Appearance: 17X16X19 5 through-hole mm

Mainly used for measuring severely distorted sine wave current, impulse current, and pulse current (cannot measure pure DC current).
Note: YX250 series transformers can be customized according to user requirements.

[Miniature transformer]CT-0.3(1.5)-5BA series current transformers

2026-6-15 20:41:16

CT-0.3 (1.5) -5BA series current transformer

appearance

Basic Parameters

Rated once

current (A)

Rated secondary current (mA)

rated load

Rb��

Maximum current (A)

accuracy class

remark

zero point three

five

twenty

one point five

zero point one

Error limit

Accuracy level

Current error ± (%)

Phase error ± (�@)

At the following currents

0.01In

��0.05In

0.01In

0.05In

0.2In

1In

2In

3In

Imax

zero point one

zero point two

zero point one

fifteen

eight

five

zero point two

zero point four

zero point two

thirty

fifteen

ten

Note: (1) Within the current range of 0.2In~Imax, take the average value of the maximum phase difference �� max and the minimum phase difference �� min, �� e. The difference between the phase difference �� i and the average value �� e at point i operating current is defined as the phase error at point i: �� i=�� i - �� e

(2) Temperature measurement range: 10 �� to 30 ��

working environment

Temperature: -25 �� to+60 ��; Relative humidity: �� 95%

Main electrical performance

The withstand voltage between the primary winding and the secondary winding shall not be less than 3kV, and the insulation resistance shall not be less than 1G ��

Reference size

(mm)

one

twenty

thirty

one hundred and fifty

five point two

four point two

fifteen point five

six point five

twenty-four

ten

four

two

twenty-one

thirty

one hundred and fifty

five point two

four point two

fifteen point five

six point five

twenty-four

fourteen

four

CT 0.3 (1.5) -5BA series current transformer