GKMC06 | Honeywell MICRO SWITCH GKM Series Key Operated Safety Interlock SwitchDescription The Honeywell MICRO SWITCH GKMC06 is a miniature key operated safety interlock switch designed to ensure machine shutdown when protective guards are opened. Featuring 2 normally closed direct opening contacts and a slow action mechanism, it provides reliable safety performance in compact machinery applications. The GKMC06 is engineered for use on hinged or sliding guards where controlled access and operator protection are critical.