Product Details:

Voltage TypeAC
Voltage (V)220 – 240
Number of Poles2 Pole
ApplicationSingle Phase Voltage Monitoring
Current (Amps)16A
Contact FormSPDT (1NO + 1NC)
TypeUndervoltage, Overvoltage, Neutral break protection

RN-111M voltage monitoring relay is designed to de-energize an industrial/appliance single phase 220 – 240V/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 contactor, depending on the wattage.

The relay can operate in four independent modes:

  • Maximum and Minimum 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 recoveryest

Additional Information:

  • Item Code: RN-111M
  • Port of Dispatch: New Delhi, India

Main Technical Specifications

Rated voltage, V


Rated voltage frequency, Hz

47 – 65

Harmonical configuration (nonsinusoidality) of power supply voltage

EN 50160

Adjustment ranges:

              – minimal voltage tripping range (Umin), V

              – maximal voltage tripping range (Umax), V

              – autoreclosing time delay (Ton), sec

 160 – 230

 240 – 280

5 –900

Fixed tripping time delay in case maximal voltage fault (Umax) detected, sec


Fixed tripping time delay in case minimal voltage fault (Umin) detected, sec


Fixed tripping time delay in case of voltage decrease more than 60V than the adjusted minimal voltage tripping threshold (Umin), sec


Fixed tripping time delay in case of voltage increase more than 30V than the adjusted maximal voltage tripping threshold (Umax), sec


Maximal commutation current (active power load), A


Tripping Voltage level accuracy, V

up to 3

Minimal operation voltage level at which RN-111M will keep working, V


Maximal operation voltage level at which RN-111M will keep working, V


Voltage hysteresis, V

   4 – 5

Rower consumption (when de-energization load), W

 to 3.5

Commutation life of the output contacts:

– under 16A power load,  times (no less than)

– under 5A power load,  times (no less than)

100 000

1 000 000

Outer dimensions, (2 S-modules),

Fiqure 1

Weight, kg, no less than


Casing material – self-extinguishing plastic

The device preserves functionality in any position within the space

Parameters of the integrated relay output terminals

Maximal current at ~ 250V AC

Maximal power when contacts are closed

Maximal commutation power

Maximal allowed

AC/DC Voltage

Maximal current

at 30V DC

Cos ф  = 0.4

Cos ф  = 1

5 А


5000 VA

4000 VA

380/150 V

5 А

No harmful substances in excess of the maximum permissible concentration is available.

RN-111M complies with requirements:

IEC 60947-1:2004; ІEC 60947-6-2:1992; CISPR 11:2004; IEC 61000-4-2:2001.