Allen-Bradley Guardmaster Cadet 3 440K-C21057 Tongue Interlock Switch (preowned). This Cadet 3 safety interlock uses a 90-degree tongue actuator and provides two normally closed safety contacts plus one normally open auxiliary contact (Make-Before-Break configuration) for reliable guard monitoring, with M16 conduit entry and an optional 1/2" NPT conduit adapter for wiring and mounting flexibility. The compact Cadet 3 family is designed for door-guard interlocks on industrial equipment, delivering direct opening action and dependable interlock signaling in safety circuits that use Guardmaster components.
