The BWU2631 is a robust AS-i Safety Input Module from Bihl+Wiedemann GmbH, designed for high-integrity safety applications in industrial automation. The image card above shows visuals of the module and links to datasheets and vendors.

Key Features of BWU2631

• Type: AS-i Safety Input Module
• Protection Class: IP67 — ideal for harsh environments
• Inputs:
  • 2 × 2-channel safety inputs (total of 4 safe inputs)
  • Designed for floating contacts (e.g., emergency stop buttons, safety switches)
• Connectors:
  • 4 × M12 sockets (5 poles)
  • Max cable length: 15 m
• Power Supply:
  • Inputs powered via AS-i or AUX (24V or 48V)
  • If powered by AS-i, inputs must not be connected to earth or external potential
• Safety Ratings:
  • Meets SIL 3, PL e, and Category 4 standards
• Addressing: Uses 2 single AS-i addresses
• Mounting: Requires a substructure module (sold separately)