The 440K-E33080 is a guard door monitor switch from the Guard Master line of products. It is designed to provide high levels of machine guarding and protection through Tamper-Proof and/or Manual Reset capabilities. The 440K-E33080 is a two-wire safety interlock switch designed to meet functional safety standards such as IEC 60947-5-1 and UL 508. The guard door monitor switch is constructed of stainless steel (316 or 304) with a choice of momentary or maintained contact switches. The guard master monitors doors, panels, drawer and hatches in potentially hazardous areas and signals an alarms/lights when the door is opened. This switch can be used as a safety interlock for safety devices such as e-stop switches, safety mats, light curtains, etc.