250A/125mA 300A/100mA CT-257 Current Transformer

250a/125ma 300a/100ma ct 257 current transformer
  1. Application: electronic energy meter, instrument, current sensor, PDU, switch power, induction cooker, charging pile, control board etc.
  2. Reliability: epoxy resin for long time ,Compatible with RoHS,REACH and ISO9001:2015
  3. Dimension:(mm)

250a/125ma 300a/100ma ct 257 current transformer

4.Performance Parameter:

Model NO Rated Input Current Turns Ratio Rated Output Current Load Resistor Out Voltage Accuracy Permissible Error Phase Angel Error Max Current
CT-257-2.0F 0-300A 2000：1 0~150mA ≤10Ω ≤1500mV ≥0.1% ≤0.1% ≤15’ 400A
CT-257-3.0F 0-400A 3000：1 0~133.33mA ≤10Ω ≤1333.33mV ≥0.1% ≤0.1% ≤10’ 500A

 

  1. Security Parameters:

Isolation Voltage: Primary Winding and Secondary Winding：3KV/2mA/60Sec;

Insulation Conductor：≥100MΩ  /500V DC; Inflaming Retarding: UL94-V0;

Operating Temperature: -40℃~+85℃ Humidity ≤95% Frequency Range: 50HZ~70KHZ

 

6.Electronic Schematics:

250a/125ma 300a/100ma ct 257 current transformer

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