Pilz PNOZ s3 751103 Safety Relay

The Pilz PNOZ s3 (Part No. 751103) is a compact, high-performance safety relay from the PNOZsigma series, designed to reliably monitor essential safety functions in industrial machinery. Its narrow 17.5 mm design provides maximum functionality while saving valuable space in your control cabinet.

Key Features and Benefits

• Compact Design: At just 17.5 mm wide, the PNOZ s3 maximizes panel space efficiency.
• High Safety Level: Achieves up to Performance Level e (PL e) and Safety Integrity Level 3 (SIL 3), making it suitable for the most demanding safety applications.
• Versatile Monitoring: Specifically engineered for monitoring single or dual-channel safety devices, including:
  • Emergency Stop (E-STOP) Pushbuttons
  • Safety Gates and Limit Switches
  • Safety Light Curtains and Light Beam Devices (Type 2 and Type 4)
• Redundant and Self-Monitoring: Features a redundant internal circuit with built-in self-monitoring to ensure the safety function remains effective even in the event of a component failure.
• Flexible Operation Modes: Offers multiple start-up options that can be set via a rotary switch:
  • Automatic Start
  • Monitored Manual Start
  • Manual Start
  • Start-up Test
• Clear Diagnostics: Equipped with easily visible LED indicators on the front panel for immediate status and error diagnostics, including Power, Input Channels (In1, In2), Output (Out), Reset, and Fault.
• High-Quality Outputs: Features two instantaneous safety contacts (2 N/O) for reliably switching off loads, plus one instantaneous semiconductor output for signaling (e.g., to a PLC).
• System Expandability: Allows for the connection of one PNOZsigma contact expansion module to increase the number of available safety outputs.
• Convenient Connection: Available with plug-in connection terminals (spring-loaded technology for the 751103 model) for fast wiring and easy maintenance.