The STI 44519-0080 Safety Interlock Switch is an industrial‑grade door/guard interlock with 3NC and 2NO contacts and a 24 VAC/DC coil. It operates with no key actuator, making it suitable for guarding applications where the guard must be closed to enable machine operation and for safety circuits that require both normally closed and normally open paths. This multi‑contact configuration supports reliable monitoring of guard status and control of downstream safety relays.
