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Single-phase voltage monitoring relays

RN-111 single-phase voltage monitoring relay

The RN-111 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 RN-111 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 LEDs display:

 

 

  • presence of voltage in the mains;

 

  • load status (ON/OFF).

 

 

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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