VOLTAGE：    AC420V±10%V    FREQUENCY： 50HZ±10%HZ

PHASE：THREE-PHASE FOUR-WIRE SYSTEM

3、OUTPUT：

VOLTAGE： AC420V       FREQUENCY： 60   HZ

 PHASE：THREE-PHASE FOUR-WIRE SYSTEM

VOLTAGE STABILITY：  ≤       1      %

FREQUENCY STABILITY：≤     0.01       %

WAVE SHAPE DISTORTION：≤     3     %

4.OVER LOAD CAPACITY : WITH HIGH OVER LOAD CAPACITY ,THE TRANSITION CURRENT CAN ENDURE TWO TIMES RATED CURRENT .

5. PROTECTION：OUTPUT CIRCUIT BREAKER, ELECTRONIC CIRCUITS INSTANT TRIP FOR OVER VOLTAGE, OVER LOAD, OVER TEMPERATURE, SHORT CIRCUIT PROTECTION AND ALARM SYSTEM

6. WORKING ENVIRONMENT：

             WORKING TEMPERATURE：-10℃～50℃  

             RELATIVE HUMIDITY：≤90％（25℃）

7. METHOD OF OPERATION DISPLAY：DISPLAY  VOLTAGE（V）、FREQUENCY（HZ）、CURRENT（A）AND WATTMETER（W）