Product Details:

Voltage TypeAC
Voltage (V)220 – 240
Number of Poles2 Pole
ApplicationSingle Phase Voltage Monitoring with Overload trip
Current (Amps)16A (upto 3.5kW)
Contact FormSPDT (Plug – Socket type)
TypeUndervoltage, Overvoltage, Neutral break & Overload protection

RN-101M voltage monitoring relay with builtin electronic MCB (16A) is designed to de-energize an industrial/domestic 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.

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-closing
  • 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 (ON) delay for load re-closing after the circuit parameters recovery

Additional Information:

  • Item Code: RN-101M
  • Port of Dispatch: New Delhi, India

Technical Specifications

Rated voltage, V

220 – 240

Rated voltage frequency, Hz

47 – 65

Harmonical configuration (nonsinusoidality) of power supply voltage

EN 61000-3-2 (IEC 1000-3-2)

Adjustment ranges:

              – minimal voltage tripping range (Umin), V

              – maximal voltage tripping range (Umax), V

              – autoreclosing time delay (Ton), sec

 160 – 220

 230 – 280

5 – 900

Fixed tripping time delay for overvoltage faults, sec


Fixed tripping time delay for undervoltage faults, sec


Fixed tripping time delay when voltage drops over 60V below the Umin setting ore if voltage drops below 140V, 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 (no less than)


Tripping Voltage level accuracy, V

upto 3

Minimal operation voltage level at which RN-101M will keep working (effective value), V


Maximal operation voltage level at which RN-101M will keep working (effective value), V


Voltage hysteresis, V (no less than)


Total power consumption, mA

 upto 15

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


RN-101M “Volt Control” complies with requirements:

IEC 60947-1; ІEC 60947-6-2; CISPR 11; IEC 61000-4-2

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