* Test conditions: room temperature: 25℃;

* Input Range:  0~300A AC;

* Input current threshold value: 230mAAC;

* Accuracy: 1.0 (adopts fiducial error);

* Response time: ≤ 150 mS;

* Contact capacity: DC30V, 1A;

* Conduction characteristics: <0.6Ω;

* Rated power consumption: none; 

* Output ripple: none;

* Frequency range: 45~65Hz（up to 5K，please specify when ordering）;

* Surge impact immunity:

   Power port one-level ± 0.5KV (L-N/2Ω/integrated wave),

   Analog I/O port one-level ±0.5KV (L-N/40Ω/integrated wave);

* Impulse immunity: Input / power port ± 2KV,

                                  Analog I /O port ±1KV;

* Operating temperature range: -10 ℃ ~ 50 ℃ 20% -90% RH;

* Input overload capacity: 20 times of the nominal value of measured current(maximum 500A)

  (Apply a second repeat 5 times, interval 300S);

* Operating temperature: -10 ~ 60°C; humidity: ≤95 %( no dew);

* Storage temperature: -55 ~+65°C; humidity: ≤95 % (no dew).