MRMV4 Motor protection

The MRMV4 is a protection relay which uses the latest Dual-Core-Processor Technology to provide precise and reliable protective functions. Also it is very easy to operate.
The MRMV4 provides all necessary functions to protect low and medium voltage motors at all power levels.
The protection functions are based on current and voltage measurement and supervise all thermal conditions, motor start sequence, stall and locked rotor, undercurrent and incomplete sequence.
Overcurrent functions and earth fault functions are also available as power protection, frequency and voltage elements.
The motor operation can be monitored by statistic and trend recorders.
The protection functions of the MRMV4 have been adapted to comply with the requirements of the VDE-AR-N-4110:2018.

MRMV4-2 highPROTEC Series

Part Number: MRMV4-2A0AAA

MRMV4 Motor protection

Measurement: Standard Ground Current
Housing type: Housing suitable for door mounting
Environment: Standard

Please contact us if you need more information.
Variants Overview Table
  • Hardware
  • Measurement
  • Housing type
  • Communications
  • Environment

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Terms and Conditions


  • Wide range power supply: 24 … 270 VDC / 48 … 230 VAC

  • VT measurement from 0 V up to 800 VAC

  • CT measurement always with 1 A and 5 A

  • Plausibility verification intelligence

  • Optimized functional overview by hiding unused functions, parameter and assignments

  • On-board testing without removing the wiring


  • Start Cycle Supervision

  • Overload

  • Jam / Locked Rotor

  • Underload

  • Unbalanced Load

  • Number of Starts, Counters,…

  • Keeping motor load under the Thermal Damage Curve



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Contact us
Turner ECS Netherlands

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2132 PX Hoofddorp
The Netherlands
Tel: +31 (0) 23 566 23 00

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Unit 1 High Carr Business Park
Staffordshire ST5 7XE
United Kingdom
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20832 Desio, Italy
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Tel.: +49 (0) 6103 73 299 0

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Al Khobar - Saudi Arabia
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Ein Khalid Commercial Building
Doha, Qatar
Tel: +974 3338 0351