MRU3-1 Voltage Relay (MRU311D.)

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Product number: MRU311D.


Voltage transformer inputs

The voltage supervision relay MRU3-1 protects electrical power generators, consumers or operating components generally against over- or undervoltages.

Among other applications the relay can be used for detection of over- or undervoltages in power generating plants and energy supply systems.

  • to protect generators against critical overvoltages in case of defective voltage regulators

  • as undervoltage protection for motors

  • 19“ racks – fully withdrawable

  • Door mounting – withdrawable and sealable

  • Panel mounting – fully withdrawable

  • Fault / disturbance recorder

  • Intuitive HMI

  • Display (of primary values)

  • Easy setting software – Smart view

  • Compact form factor

  • Interconnection of renewable energies (DER – distributed energy resources) to the public grid.

  • Over- / Undervoltage, residual voltage protection.

  • Protection of High, Medium and Low Voltage feeders against overvoltage (insulation damage) and undervoltage.

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