Compact monitoring relays

Compact monitoring relays

Space-saving and can be wired quickly

The compact EMD-BL relays are ideal for simple monitoring tasks – especially in the fields of building installation and series production.

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The EMD-BL monitoring relays from Phoenix Contact can be used to efficiently and reliably monitor current, voltage, and phase parameters. Thanks to the Push-in Technology, they can be connected to the modules quickly, directly, and without tools.

Your advantages

  • Particularly space-saving – thanks to a compact housing in the installation design
  • Can be wired quickly and without tools – thanks to Push-in Technology
  • User-friendly handling – parameters can be adjusted easily on the front of the housing using rotary switches
  • Clear diagnostics – with status LEDs
  • Ideal for series production – a reasonably-priced solution for numerous monitoring functions
  • Rapid installation of the voltage and phase-monitoring relays with a power supply from the measuring circuit
  • Compact monitoring relays are a part of the COMPLETE line system

The cost-effective monitoring solution

Wire compact monitoring relays without tools  

Compact monitoring relays – Quick and easy wiring without tools

With the compact EMD-BL monitoring relays, you can monitor important system parameters in your application. Detect critical errors early, report them, or shut system components off selectively.

You can choose from four device types:

  • Current monitoring, 1-phase: overcurrent, undercurrent, window
  • Voltage monitoring, 1-phase: undervoltage, window
  • Voltage monitoring, 3-phase: window, phase sequence
  • Phase monitoring: phase sequence, phase failure, asymmetry


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