Automatic transfer switch (ATSE) is a set of switch and logic control in one, truly realize the mechanical and electrical integration of the self-transfer switch, it is suitable for AC 50HZ, rated voltage to 440V, the agreed current to 1600A in the industrial power distribution equipment, with voltage detection, communication interface, electrical and mechanical interlock and other functions;

HD series, HS series open knife switch and knife transfer switch (hereinafter referred to as the switch) are suitable for AC 50HZ, rated voltage to 380V, DC to 220V, rated current to 3000A in the complete set of power distribution equipment, as infrequent manual connection and disconnection of AC, DC circuit or as isolating switch.

It is mainly used in power supply and distribution circuits with high short-circuit current and low power factor, as a main switch or main switch with manual and infrequent operation. It is especially suitable for installation in relatively large withdrawable low-voltage plants.

HGL series disconnector from 63-3200A in 13 specifications is a modular design basic type, with three, four (three can be switched on and off neutral), suitable for circuit and switching and electrical isolation, more than 1000A only for electrical isolation.

CJX2 series AC contactors are mainly used for AC 50HZ or 60HZ, rated insulation voltage 690V, under the AC-3 use category, rated working voltage 380V, rated working current to 620A in the power system, for long-distance connection and breaking of circuits and frequent start and control of AC motors. It can also be combined with appropriate thermal overload relays or electronic protection devices to form electromagnetic starters to protect circuits that may be overloaded.