Voltage protection relay uses a high-speed and low-power processor
as its core. When the power supply line has over-voltage, under-voltage
, or phase failure, phase reverse, the relay will cut off the circuit quickly
and safely to avoid accidents caused by abnormal voltage being sent to
the terminal appliance. When the voltage returns to the normal value,
the relay will turn on the circuit automatically to ensure the normal operation
of the terminal electrical appliances under unattended conditions
