Allen-Bradley Guardmaster Safety Switches — Specifications (Bulletins 440G, 440H, 440K, 440N, 440P, 440T, 442G)
Complete specifications for the Allen-Bradley Guardmaster safety switch family covering guard locking, hinge, non-contact interlock, tongue interlock, trapped key, and multifunctional access box products. Includes solid-state OSSD and voltage-free electromechanical designs rated up to SIL 3 / PLe / Cat 4, with GuardLink, CIP Safety over EtherNet/IP, and standard safety-relay compatibility. Mirrored from Rockwell Automation Publication SWITCH-TD001H-EN-P, August 2025.