TA125 Series
Minitype Precision AC Current Transformers

1.Features:

• Being able to be directly welded on PCB;
• Fully encapsulated, strong mechanical and environmental endurance, strong dielectric strength and beautiful appearance.

2.Conditions of usage:

• Circumstance temperature: -55...+85°C;
• Relative humid <90% при 40°C;
• Atmospheric pressure: 860~1060mbar (650~800mmHg approximately);

3.Range of working Frequency: 20Hz~1kHz

4.Insulation Rating: Class F (155°C).

5.Safety features:

• Insulation resistance: >1000MOm in normal condition;
• Insulation withstand voltages: 6000V 50Hz/1min;
• Fire proof: accord with the grade of UL94-Vo

6.Outline Drawing, Installation Dimention and Coil Diagram

7.Typical Usages and Technical Parameters.

The sampling voltage is obtained directly by using a resistor(as shown in the right figure).
The parameters are listed in table below.

8.Attention:

• The primary of the current transformer must be connected in series with the loop of the measured current. The secondary should operate in a mode of near short circuit.
• The secondary of the current transformer is not allowed to be open circuit, Do Not install any fuse.