... ( take load short-circuit), overload protection, DC overload or under-voltage protection.5. Strong ability ... equipments. Such as: air conditioner, refrigerator, television, fan, washer, fill water electric motor, tortile gate, ... Specification ModelCapacityNS/NW200W300W500W1KW2KW3KW-4KW5KW10KW20KW30KW50KW100KWDC24V/12V24V/12V24V48V120V240V240V360V360V492V492VTHD≤3%Dc to AC transfer efficiency80%--95%O/P ...