Phoenix Contact PSR-UNI-L Multifunctional Safety Relays

Phoenix Contact PSR-UNI-L Multifunctional Safety Relays are designed to monitor up to two single- or dual-channel safety sensors in a single device. These relays are classified into two types: UNI-1 and UNI-2. The UNI-1 relays feature one configurable sensor circuit that controls four output channels and one output, while the UNI-2 relays offer two configurable sensor circuits, each controlling two output channels and one monitoring output. Phoenix Contact PSR-UNI-L Safety Relays are suitable for emergency stop buttons, safety door switches, light curtains, and magnetic switches.

Features

  • UNI-1
    • One configurable sensor circuit
      • Controls four output channels
      • Controls one monitoring output
  • UNI-2
    • Two configurable sensor circuits
      • Controls two output channels
      • Controls one monitoring output
  • Independent monitoring of up to two common safety functions
  • Configurable directly on the device with no programming knowledge required
  • 22.5mm housing width
  • Suitable up to CAT 4/PLe, SIL 3

Applications

  • Emergency stop buttons
  • Safety door switches
  • Light curtains
  • Magnetic switches
  • Machine building
  • Factory automation
Published: 2025-08-12 | Updated: 2025-10-07