Multifunctional safety relays

Multifunctional safety relays

One safety relay, three safety functions.

The PSR-MXF multifunctional safety relay provides three functions in just one device.  With the range of PSR multifunctional relays, you can realize simple safety functions such as emergency stop, safety door and light grid monitoring with ease; and with just one device. In total, there are four function versions available, each with three connection methods.

PSRmultifunctional relays offer many benefits

PSRmultifunctional relays offer many benefits
  • Pre-connected safety functions reduce potential wiring errors
  • Three connection technologies; screw, spring cage, or push-in
  • Space savings inside the cabinet; width 22.5 mm
  • Two independent reset circuits
  • PLe according to ISO 13849
  • SILCL 3, IEC 62061


Three different safety functions

The PSRmultifunction safety relays have three sensor circuits S0, S1, and S2, wired via single or dual channels. The local sensor circuits S1 and S2 each provide a standard function such as a safety door or a light grid. When a fault occurs, both sensor circuits reactivate separately.

The higher-level sensor circuit S0 monitors both local sensor circuits. If it is triggered, the safety circuits protected by S1 and S2 are switched off.

Three different safety functions

Typical applications

The PSRmultifunctional safety relays are ideal for small machines requiring up to three safety functions. Possible industries include:

  • Food processing machinery
  • Packaging machines
  • Assembly handling machinery


586 Fulling Mill Road
Middletown, PA 17057
(800) 888-7388

PSRmultifunction: 3-in-1 Safety Relay

With PSRmultifunction by Phoenix Contact, you can connect up to three safety sensors to a single relay without using any software configuration.

PSRmultifunction: 3-in-1 Safety Relay
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