IRM PRO



IRM PRO

A Reliable & Effective motor protection relay IRM-Pro for LV motors, which are either operated via power contactors or power circuit breakers.

Key Features

»  Numerical Motor Protection relay
»  Flush mounting with Large LCD
»  Enhanced HMI with 16 LEDs
»  CT operated - 1A / 5A
»  Measurement & Metering
»  Modbus RTU on RS 485 Communication
»  Fault Record with Date & Time stamp
»  Motor Data
»  Readout of phase and earth fault current
»  Remote reset of relay
»  Editable parameters


Protection Function:


  Phase Reversal

  Current Unbalance (46)

  Over Load Protection (49)

  DEFT / Inverse Characteristic (Bimetallic)

  Thermal Overload (49)

 


  Locked Rotor (48/51)

  Short Circuit (50/51)

  Under Current (37)

  Stall (51)

  Earth Fault (50G/51G)

IRM PRO


Hardware


  4 Current Analogue Input for phase & earth fault current

 1 Change over Digital Output Contact

 16 LEDs for Annunciation

  Auxiliary Supply:

– 220V AC (180 - 260V)V AC
– 110V AC (80 – 160)V AC



  Rated Frequency – 50Hz

  Motor State Indicator:

Flashing for Motor Start & Rotating LEDs for run condition.

  Modbus RTU on RS-485 for automation

Standards


Design Standards

IEC 60947

Environment Protection

IEC60068-2-3

Insulation Test / Impulse Test

IEC60255-5

High Frequency Interference Test

IEC60255-22-1

Electrostatic Discharge Test

IEC60255-22-2

Radiated Electromagnetic Field Immunity Test

IEC60255-22-3

Electrical fast transient (Burst) Test

IEC60255-22-4

Radio interference suppression Test

EN55011

Shock Response Test

IEC60255-21-2

Vibration Response Test

IEC60255-21-1