1．Features:

① It can measure the zero-sequence current in the system whose main circuit current is below 630A ;

② Fully enclosed, good mechanical and environmental resistance, strong voltage isolation capability, safe and reliable;

③ Soft line output, easy to use and flexible .

 2．Ambient Conditions:

① Ambient temperature: -55℃～+85℃;

② Relative humidity: ≤90% at 40℃;

③ Atmospheric pressure: 860～1060mbar(about 650～800mmHg).

 3．Operating Frequency Range: 20Hz~1kHz

 4．Insulation Thermal Class：Class B (130°C)

 5．Safety Features:

① Insulation resistance: >1000MΩ in normal condition;

② Insulation withstand voltages: 6KV 50Hz/1min;

③ Fire retardancy: In conformity with UL94-V0.

 6. Outline Drawing, Installation Dimension and Coil Diagram: ( tolerance ± 1mm )

① Outline drawing and installation dimensions are shown in Figure 1 :

② The coil diagram is shown in Figure 2 :

7. Typical Application and Performance Parameters:

See the table below for the application performance parameters shown in Figure 3.

● Notes:

a. In practical applications, the sampling resistance should be less than or equal to the rated value given in the above table, which will improve the non-linearity and phase shift ;

b. If the conversion ratio required by the user is different from the above, it can be customized according to the user's requirements.

 8．Attention:

① Connect the primary of the current transformer in series with the measured current circuit, and operate the secondary in near short circuit mode.

② Do not allow the secondary of the current transformer to be open circuited and do not install any fuse.