The MZM 100 is a patented automatic latching device that has solenoid interlocks used for the protection of man with innovating and unique operating principle. Its dimension of 40 mm x 179 mm x 40 mm has an electronic contact-free coded system made of thermoplastic enclosure. The maximum length of the sensor chain can range up to 200 meters that cleverly uses 3 LEDs to show operating conditions. The sensor technology authorizes an offset between actuator and interlock of ± 5 mm vertically and ± 3 mm horizontally. It has an intelligent diagnosis that provides self-monitoring series-wiring of 31 sensors.