China Manufacturer Of Contactor,Circuit Breaker,Power Inverter,Protector Surge,Solid State Relays ... 20A,30A...2500A,3000A...TO 8KA,10KAWITH EXT,SHUNT 50MV,60MV OR 75MVCLASS 1.5AC VOLTMETERFROM 30V,50V ... 45-55Hz,45-65hZ,55-65Hz,47-53HzPOWER FACTOR METER(COS§)VOLTAGE: 10V,220V,380V,440V CURRENT: 1A ... 3cap-1-0.1ind, 0.7cap-1-0.2indPOWER METER(KW OR KVAR)VOLTAGE: 110V,220V,380V,440V ...