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TA125 Series Vertical Core Type Microminiature Precision AC Current Transformers
TA125系列立式穿芯小型精密交流电流互感器-1.png
TA125 Series Vertical Core Type Microminiature Precision AC Current Transformers
Features:
① Being able to be directly welded on PCB;
② Fully encapsulated, strong mechanical and environmental endurance, strong dielectric strength and beautiful appearance.
TA125系列 General Technical Specifications for Standard Products:

1Features:

 Being able to be directly welded on PCB;

Fully encapsulated, strong mechanical and environmental endurance, strong dielectric strength and beautiful appearance. 

 

2Ambient Conditions:

 Ambient temperature: -55℃+85℃;

 Relative humidity: ≤90% at 40℃;

 Atmospheric pressure: 8601060mbar(about 650800mmHg).

 

3Operating Frequency Range: 20Hz~1kHz

 

4Insulation Thermal ClassClass B (130°C)

 

5Safety Features:

 Insulation resistance: >1000MΩ in normal condition;

 Insulation withstand voltages: 6KV 50Hz/1min;

 Fire retardancy: In conformity with UL94-V0.

 

6Outline Drawing, Installation Dimension and Coil Diagram:( tolerance ± 0.5mm)

image.png

 

7Typical Application and Technical Parameters:

The parameters are listed in Table 1 while the sampling voltage is obtained directly by using a resistor (as shown in Fig.1 below).

The parameters are listed in Table 2 while the sampling voltage is obtained by using an IC (as shown in Fig.2 below).

image.png

 

Table 1

Model

Rated Input Current

Rated Output Current

Rated Sampling Resistance

Rated  Sampling Voltage

Phase Shift

Non-linearity

Linear Range

Withstand

Voltage

TA125-1

50A

50mA

100Ω

5V

30

1%

2.5 times of

the rated value

6KV

TA125-2

50A

25mA

400Ω

10V

TA125-3

60A

20mA

750Ω

15V

2 times of

the rated value

Table 2

Model

Rated Input Current

Rated Output Current

Rated  Sampling Voltage

Phase Shift

Non-linearity

Linear Range

Withstand

Voltage

TA125-1

50A

50mA

1/2 times of ICs power supply

10

0.2%

2.5 times of

the rated value

6KV

TA125-2

50A

25mA

TA125-3

60A

20mA

2 times of

the rated value

 

8Attention:

 Connect the primary winding of the current transformer in series with the measured current loop, and operate the secondary winding in near short-circuit mode.

 Do not allow the secondary winding of the current transformer to be open-circuited and do not install any fuse in the secondary circuit.

Application Case
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