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PSR-Mini highly compact, safe coupling relays

Safety Relay Technology

Functional safety systems are an integral part of the process industry, implemented to identify any risks within a device or machine. These systems are designed to evaluate potentially harmful situations by constantly monitoring devices and by automatically enabling actions to resolve or prevent accidents.

With the evolution of machine automation, functional safety systems must be re-evaluated to ensure that the safety technologies in a circuit will accurately work together to provide the highest degree of safety.

Furthermore, standard safety systems with the addition of basic safety relays may often take up large amounts of control cabinet space, resulting in a larger cabinet footprint, more expensive build costs and more difficulty installing on site.

Innovative Force-Guided Relays

Phoenix Contact’s PSRmini range of highly compact safety coupling relays are the solution to spacing safety circuits with maximum functionality. Thanks to the compact sizes of 6 mm up to 22.5 mm as well as SIL3 functional safety rating, the ultra slim design saves up to 70% of cabinet space without affecting performance.

In addition, the innovative force-guided safety relay technology developed in-house at Phoenix, offers absolute operational confidence inside a 6 mm wide relay housing. High performance with low energy consumption, the force-guided contacts prevent the N/O and N/C contacts from closing at the same time, providing maximum safety and enabling quick and easy diagnosis in accordance with IEC 61508, ensuring less downtime during scheduled maintenance.

Visual LED diagnostics on the relay allows SIL3 qualified inspection directly at the module, improving speed when attempting to diagnose issues.

Decades of experience driving innovative developments

Phoenix Contact’s PSRmini Safety Coupling Relays are suitable for emergency shutdown as well as ATEX and Fire & Gas applications for various safety systems (model dependent).

Benefits of the PSRmini Safety Coupling Relay:

  • Up to SIL 3 in accordance with IEC 61508
  • Forcibly guided contacts according to EN 50205
  • Ultra-slim housing width (6 mm up to 22.5 mm)
  • Some models suitable for Fire & Gas applications and ATEX environments
  • Corrosion protection through protective coating on the PCB
  • Easy proof test according to IEC 61508 thanks to integrated signal contact
  • TÜV-certified

Contact your local branch today for free guidance and advice from our TÜV Certified safety engineers to find out more about how the PSRmini Safety Coupling Relay would suit your application.


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