Allen-Bradley 440K-T11208B Safety Switch Interlock

Allen-Bradley Guardmaster Trojan 5 tongue interlock switch, catalog 440K-T11208B, is a tongue-operated safety interlock designed for the leading edge of guard doors on industrial equipment. Part of the Trojan 5 family, it uses a standard actuator and standard head to require guard closure before enabling the machine’s safety circuit. The unit provides two safety contacts (Normally Closed) and one auxiliary contact (Normally Open), with Make-Before-Break (BBM) behavior to help maintain a safe signal during actuation. Wiring entry is 1/2 in NPT conduit, and the device is intended for universal fit with sliding, hinged, or lift-off guards on conveyors, presses, or similar equipment. This combination of robust interlock action and straightforward wiring makes it a common choice when ensuring guard integrity before machine restart.