Schmersal BNS36-11Z-ST-R Safety Door Interlock

The Schmersal BNS 36-11Z-ST-R is a coded, magnetically actuated safety door interlock from the BNS 36 family, designed to interlock access doors on machines and gate safety systems with compatible safety controllers. It provides two safety contacts (1 NC and 1 NO) plus one normally open and one normally closed contact, all housed in a glass‑fibre reinforced thermoplastic enclosure with IP67 protection and a compact footprint of 88 × 25 × 13 mm, weighing 29 g. The device uses a magnet as its actuating element for head‑on motion to the active surface, with right‑hinge mounting and concealed installation possible; the actuator must be ordered separately. It features a M8, 4‑pole connector and supports a maximum switching voltage of 75 V DC, a maximum switching current of 0.4 A, and a switching capacity up to 10 W at up to 5 Hz, making it suitable for integration with Schmersal SRB(-E) or PSC1 safety‑monitoring modules (PROTECT‑SELECT variants). Safety‑related performance is rated under EN IEC 60947-5-3, with a coding level of Low per EN ISO 14119, and a documented mission time of about 20 years. The guaranteed switching distances are an ON distance of 7 mm and an OFF distance of 17 mm, and the device is engineered to tolerate transverse misalignment and soiling. For compatibility, Schmersal recommends actuators such as BPS 36‑1 or BPS 36‑2; the part is catalogued under article number 101193154 (EAN 4030661359816), confirming its identity as the BNS36‑11Z‑ST‑R with right‑door orientation.