In three-phase neutral ungrounded power supply and transformation systems, it can be used as a main switch, branch switch, and also for unbalanced starting control of large capacity motors.

Product features:

Equipped with overload, phase failure, short circuit, undervoltage, overvoltage, selective leakage protection for leakage locking, main switch leakage protection, three-phase imbalance protection, and remote control functions;

It has functions such as collecting and sending status quantities, analog quantities, receiving, correcting, and executing remote control commands, and recording event sequences;

Having network time synchronization or communication protocol time synchronization function;

Equipped with Ethernet and RS485 interfaces, with Ethernet using Modbus TCP protocol and RS485 using Modbus RTU protocol;

Equipped with online self inspection function;

Having the function of displaying Chinese characters;

Equipped with fault memory and query functions;

It has the function of accumulating information.