MA16-ACT Safety Interlock Switch is a model in STI's MA-series of magnetic interlock switches, designed for door-guard interlock applications on industrial equipment. In this family, models such as MA-16 are listed with two normally closed contacts (2 N.C.) to form a safety circuit. The MA16-ACT designation identifies the MA16 variant within STI's MA-series, a compact interlock solution used to ensure guards stay closed during operation and to interrupt machine power when a guard is opened. The MA-series is described as magnetic actuator interlocks, enabling actuation by a compatible actuator and facilitating integration into safety circuits that require monitored switching and fail-safe behavior.
