Siemens 3SE71601BD040AS4 Cable-Operated Switch

Siemens 3SE71601BD040AS4 is a cable-operated safety switch from the SIRIUS 3SE7 family designed for machine guarding and remote actuation of safety circuits. Housed in a rugged metal enclosure, the device provides a latch-and-release mechanism with a push-button reset and a red LED indicator powered by 24 V DC, signaling status at a glance. It offers two normally open and two normally closed contacts, enabling common interlock configurations for safe-start and shutdown sequences. The 3SE7160 variant supports two-sided operation and is suitable for cable runs up to 2 x 100 meters, giving flexibility in accessorizing guard doors or access panels. Certified for EN ISO 13850 latch-and-release operation, this switch is intended for safety-related control circuits and interfaces with Siemens safety relays and controller logic. Typical applications include guarding interlocks on machine doors, remote emergency-stop actuation paths, and fault-safe interlocks in automated production lines, where reliable actuation via a pull cord is required.