Phoenix Contact PSR-UNI-S Safety Relays

Phoenix Contact PSR-UNI-S Safety Relays are configurable, multifunctional safety relays that can monitor 1 dual-channel or 2 single-channel safety sensors. Phoenix Contact PSR-UNI-S Safety Relays' sensor circuits can control 2 or 4 output channels or 1 set of output contacts. The safety relays are designed for factory automation, machine building, and machine safety system applications. 

Features

  • Configurable, multifunctional safety relays
  • Monitor up to 2 single-channel safety sensors
  • Monitor dual-channel safety sensors
  • Sensor circuits control 2 or 4 output channels or 1 set of output contacts each
  • Independent monitoring of up to 2 common safety functions
  • Configurable via clipx ENGINEER software

Applications

  • Emergency stop buttons
  • Safety door switches
  • Light curtains
  • Magnetic switches
  • Machine building
  • Factory automation
  • Machine safety systems

Specifications

  • Configuration options
    • Traditional safety relay functionality
    • Automatic or manual start functionality (with or without cross-circuit detection)
    • Antivalent (dual-channel N/C N/O) device compatibility
  • 22.5mm housing width
  • Category 4/PL-E (EN ISO 13849-1) compliance
  • SIL 3 (EN ISO 62061, IEC 61508) compliance
Published: 2026-10-26 | Updated: 2026-10-28