Schmersal BNS36-11Z-L Safety Interlock Device

Schmersal BNS 36-11Z-L is a coded magnetic safety sensor interlock from the BNS 36 series, designed to guard machine access doors and interface with safety monitoring modules such as SRB(-E), PROTECT-SELECT, or PSC1 to meet EN IEC 60947-5-3 requirements. It provides 1 normally open (NO) and 1 normally closed (NC) contact, operates from up to 75 V DC, and uses a magnetic drive in a reinforced thermoplastic housing measuring 88 mm by 25 mm by 13 mm, with concealed mounting for clean installation. The left-hinge variant (L) is typically supplied with a 1 m cable exit, while a connector option is also available, and the device is designed to resist transverse misalignment and soiling for long service life free of mechanical wear. The BNS 36-11Z-L is cULus listed and conforms to EN IEC 60947-5-3, with product classifications in eCl@ss (12.0 27-27-44-01) and ETIM (EC002544), reflecting its role as a coded safety-sensor offering robust safety performance in industrial environments. As a dedicated safety interlock, it helps prevent inadvertent machine start-ups by requiring a correctly coded actuator, making it well suited to guard-door applications on a wide range of machinery, and its mounting and wiring options support concealed installation in tight control panels or machine housings.