Schmersal BNS33-12zG Magnetic Safety Sensor

Schmersal BNS33-12ZG-2187 Magnetic Safety Sensor is a LED‑enabled, coded safety switch in the BNS33 family that operates on magnetic principles to monitor safety gates and doors without physical contact. It is designed to pair with Schmersal safety‑monitoring modules (AES/AZR/SRB or PSC1) to form a safe‑control circuit that complies with EN 60947‑5‑3 and ISO 14119, with RoHS compliance confirmed by Schmersal’s declarations. The LED version provides an onboard status indication, and the device is enclosed in a thermoplastic housing suitable for concealed mounting; its compact dimensions are 88 mm long by 25 mm wide by 13 mm high. The sensor is rated IP67 for dust and water ingress protection and is engineered for a long service life with no mechanical wear due to its non‑contact operation. Typical operating voltage is 24 V DC, with cable lengths offered in multiple variants to fit installation needs (examples include 2 m, 5 m, and 10 m). Designed for safety gate and door applications, the BNS33 series emphasizes insensitivity to transverse misalignment and concealed mounting, while remaining compatible with Schmersal monitoring modules to realize a compliant safety function. RoHS compliant and supported by official product documentation. Note: exact output configurations (NO/NC) vary by variant; verify the specific labeling for your installation.