Voltage Monitoring Relay RN-111M

Description

 RN-111M voltage monitoring relay is designed to de-energize an industrial/appliance single-phase 220V/50Hz load in case of inadmissible voltage variations in the mains with subsequent automatic re-energizing after the circuit parameters recovery.

Load is connected to the relay either directly via relay terminals or through a magnetic starter, depending on the wattage. The relay can operate in four independent modes:

• voltage monitoring relay;
• minimum voltage monitoring relay;
• maximum voltage monitoring relay;
• time relay with a restart delay.

The device front panel features load status indicator (on/off) and three-digit, seven-segment display, which displays (depending on the device status):

• actual RMS voltage;
• accurate value of the set-up parameter;
• time remaining till automatic load re-energizing;
• emergency de-energizing the load (RMS voltage flashing).

The variable pot knobs on the front panel allow for setting:

• the maximum allowable voltage tripping threshold;
• the minimum allowable voltage tripping threshold;
• time delay for load re-energizing after the circuit parameters recovery.