Safety relay modules

Safety relay modules

Proven safety

Large selection of safety and coupling relays for reliably monitoring the functional safety in your machine.

Back to Functional safety


Search in Safety relay modules

Show all products in this category

Benefit from our experience in safety technology. If you only require a few safety functions in your machine, our PSR safety relay modules are the ideal safety solution.

Your advantages

  • Large selection of switching devices for different safety functions
  • High product availability, thanks to proven safety technology
  • Fast installation and startup with user-friendly connection technology
  • Space-saving, thanks to the narrow design
  • Safety relay modules are part of the COMPLETE line system

Safe coupling relays for process technology

PSRclassic and PSRmini coupling relays  

SIL coupling relays for safe switch-on and safe switch-off

The coupling relays with force-guided contacts are SIL-certified. They are used for electrical isolation and power amplification. Choose between the highly compact PSRmini version and the market-standard PSRclassic version. With an overall width of just 6 and 12 mm, the PSRmini coupling relays are the narrowest coupling relays on the market. The product portfolio features SIL coupling relays for safe switch-on (fire and gas) and for safe switch-off (emergency shutdown).

Safety relays for numerous safety functions

PSRclassic and PSRmini safety relays  

Safety relays for simple safety functions such as emergency stop and two-hand control

The safety relays reliably monitor the functional safety in your machine or system. When operating safety functions such as emergency stop, light grids, safety doors or two-hand control, you can choose between the proven standard PSRclassic range and the highly compact PSRmini devices with an overall width of just 6 mm and 12 mm. Or, you can simply combine these product ranges to best suit your application.

Multifunctional safety relays with three functions in one device

PSRmultifunction multifunctional safety relays  

Multifunctional safety relays in three connection versions: screw, spring-cage, and Push-in

The multifunctional PSRmultifunction safety relays provide three safety functions, such as emergency stop, safety door or light grid monitoring, all rolled into one device. Thanks to two local sensor circuits and one higher-level sensor circuit, the 22.5 mm wide safety relays provide a slim solution for many standard applications.

Zero-speed and over-speed safety relays reliably monitor rotating parts

PSRmotion zero-speed safety relays  

Highly compact zero-speed safety relays for drive monitoring without sensors

Use the narrow PSRmotion zero-speed safety relay to monitor the zero speed of a dangerous movement without additional sensors. For example, a guard locking device can be controlled in this way.

You can use the PSR-MM30 zero-speed and over-speed safety relay to monitor the speed of rotating parts in systems and machines. If a predefined speed is exceeded, the device shuts down safely.

Force-guided coupling relays for universal use

Force-guided coupling relays for universal use  

Force-guided coupling relays

The force-guided coupling relays are basic devices for single-channel control. You can use the coupling relays for electrical isolation, power amplification, and for increasing the number of contacts.

Like all PSR safety relay modules, the coupling relays are equipped with force-guided contacts in accordance with EN 50205. This means you can use the coupling relays to perform safe diagnostics via a force-guided N/C contact.

Further information


C6 The Exchange
Calmount Park
Dublin 12
D12 XE18