Single Phase Digital Overcurrent Relay RMT-101


Single Phase Digital Overcurrent Relay –

Voltage Type AC
Voltage (V) 220 – 240V
Number of Poles 1P + N
Current Range (A) 0 – 10A or 0 – 100A selectable
Application Digital Current Overload Relay
Contact Form Potential Free, SPDT (1NO + 1NC)
Coil Type Latching
Current (Amp) 8A direct, Any load through contactors
Type Current Overload Relay with built-in CT

10 in stock


RMT-101 current overload/over current relay is used for load rejection in case the current exceeds the set value between 0 and 100 amperes (settable).

The device can be used in the following capacities :

  • Digital ammeter
  • Current consumption limiting relay
  • Priority load selection relay

LEDs on the front panel of the relay indicate :

  • Load state (on/off)
  • Exceeding the maximum allowed load current threshold

Depending on the work mode, the three digit seven-segment indicator indicates:

  • Actual load current value
  • Maximum current value after the last reset
  • Value of the parameter being set
  • Time remaining until load activation or rejection
  • Presence of a reclosing blockage

Regulating potentiometers allow the user to set the following values:

  • Maximum allowed load current value threshold
  • Time for load rejection in case of exceeding
  • Maximum allowed load current threshold
  • Time delay before load activation after the current returns to the allowed level

Additional Information:

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

General Information:

Purpose of deviceControl and distribution equipment.
Typical operation Continued

Protection degree:        – device

– terminal block



Index protection of electrical shockII
Permissible degree of pollutionII
Overvoltage categoryII
Nominal voltage of insulationV450
Rated impulse withstand voltage,kV2.5

Technical Specification:

Operation supply voltage, V230/240
Power frequency , Hz47  53
Harmonical configuration (nonsinusoidality) of power supply voltageEN 50160:2010
Current measurement range, А0-100
Measurement inaccuracy, no worse than1%

Adjustment range

а) k=1; Imax, А

absolute measurement accuracy of current, A, no more than

б) k=10; Imax, A

absolute measurement accuracy of current, A, no more than

0 – 10




Adjustment range of ton, sec0 – 900, 
Adjustment range of toff, sec0 – 300
Readiness time, sec, no more than *0.8
Commutation overcurrent of the output contacts,  А, not less8
Minimum voltage when safe operating (effective value), V **130
Maximal voltage when safe operating (effective value), V300
Maximum allowable start voltage, V,  no more than400
Torque for terminal screws, N*m0.4

Commutation life of the output contacts:

– under 8A power load, times, no less then

– under 1A power load, times, no less then

100 000

1 000 000

Weight , kg, no more than0.200
Outer dimensions, 3 S-modules for 35mm DIN-railSee fig.1
Mounting to standard 35 mm DIN-rail

* Reaction time when giving power is no more 2 seconds (autocalibration, loading and current inclusion and loading shutdown in case of emergency definition)

* Indicator switching-off is provided at supply voltage decrease more low 130 volt and blocking of functioning RМТ-101 at a supply voltage reduction more low 110 volt.

RMT-101 complies with requirements:

IEC 60947-1;  IEC 60947-6-2; IEC 61000-4-2; CISPR 11:2004, IDT

Additional information

Weight 0.3 kg

3 pole MCB size (W:52.6 x H:90 x D:69.1 mm)




DIN Rail


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