Voltage Monitoring Relay RN-111M

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Voltage Monitoring Relay RN-111M


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Specification Sheet:- RN-111M

The 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.
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