YC9VA-3 voltage and current display relay is a microprocessor-based voltage monitoring device for three-phase AC networks to
protect electrical equipment from surge voltage.
The device analyzes the main voltage and displays its current value on a digital indicator.
Load is switched by electromagnetic relay.
The user can set the current voltage value and delay time through the button.
The value is stored in non-volatile memory. Aluminum wires and copper wires can be used for connection.
Application
YC9VA-3 three and current display relay used in administrative, industrial and residential buildings and has the function of protecting
single-phase lines:
Undervoltage protection;
Overvoltage protection;
Working under voltmeter mode;
Overcurrent proteciton.