Allen-Bradley 440G-L07298 GuardLock Safety Interlock Switch

Allen-Bradley 440G-L07298 Guardmaster Atlas 5 GuardLock Switch is a tongue-operated guard-locking interlock that secures a machine guard until the control system confirms safe isolation and then releases the lock to allow access. This Atlas 5 model uses a 24V AC/DC solenoid to lock and unlock, with solenoid contacts comprising two normally closed and one normally open contact, while the safety and auxiliary contacts provide two normally closed and one normally open contact for monitoring and signaling within safety circuits. The switch features a standard actuator and a 12-pin M23 conduit entry for field wiring, aligning with common Guardmaster hardware configurations. As part of the Guardmaster Atlas 5 family, it is designed for use on machine guards where locking is required to maintain safe access control during operation and service. Typical applications include safeguarding access doors on packaging lines, conveyors, and processing equipment, where the guard must remain locked until a control signal releases the solenoid; this configuration supports integration with safety relays and programmable logic controllers that monitor gate status and lock conditions.