Three phase monitoring relays

Reliable monitoring of three-phase mains

The reliable and continuous monitoring of three-phase networks guarantees trouble-free and economic operation of machines and installations. The most multifunctional three-phase monitoring relays in the electronic relays and controls assortment are the CM-MPS/N monitoring relays for rated voltage levels up to 820 V AC and 400 Hz. Additionally, a variety of economic and cost-efficient three-phase monitoring relays are offered in this range with specialized functionality. Most devices are available with two different terminal versions. You can choose between the proven screw connection technology (double-chamber cage connection terminals) and the completely tool-free Easy Connect Technology (push-in terminals).

Main benefits

  • Safe and reliable monitoring of all important parameters in your three-phase network
  • Easy Connect Technology widhstands highest vibrations
  • Easy to adjust via front face potentiometer

Main features

  • Over-/undervoltage monitoring
  • Phase failure detection
  • Phase unbalance monitoring
  • Phase sequence monitoring
  • TRMS measuring principle
  • Easy Connect Technology with push-in terminals

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