Home Allen-Bradley® Guardmaster® 440C-CR30 Configurable Safety Relay
A flexible, cost-effective and easy-to-use safety solution
allen bradley


With 22 on-board safety I/O points, including 6 configurable I/O, the Guardmaster 440C-CR30 Safety Relay is a flexible solution for applications requiring multiple safety zones. Without increasing the footprint, the 440C-CR30 can also be expanded with two standard Micro800 plug-in modules to support 16 additional standard I/O points, saving valuable safety I/O points for your safety system.

  • Modular design with two plug-in ports allows the connection of multiple input components to a single base unit for flexible configuration of multiple input expansions
  • Compact form factor offers 22 configurable safety I/O in 110mm wide package saving space inside a panel
  • Supports plug-ins from Micro800® Control Systems to offer16 additional I/O for enhanced flexibility
  • Supports a simple way to cascade safety functions between Guardmaster Safety Relays using single wire safety technology
  • Five status and 16 user configurable LEDs on the Guardmaster 440C-CR30 relay’s faceplate provide local diagnostics to help in status reporting and troubleshooting