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Single-phase voltage monitoring relays

RN-101M voltage monitoring relay

The RN-101M 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. Besides, the relay

The RN-101M 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.

 

 

Besides, the relay:

 

 

  • protects the switched load against high-frequency and high –voltage impulse interference;

 

  • limits load current up to 15A (load wattage of up to 3.5 kW);

 

  • indicates the circuit RMS voltage.

 

 

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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