The Schmersal BNS 33-11ZG-ST magnetic safety sensor is a compact, non-contact switch engineered for dependable guard door and gate monitoring in machine safety applications. Its rugged design and precise actuation help maintain high availability in demanding industrial environments where misalignment, vibration and contamination can occur.

Leveraging proven magnetic reed technology, the device delivers wear-free switching with redundant safety channels for straightforward integration into safety relays and controllers in machine safety circuits. The BNS 33 format supports quick mounting on hinged or sliding guards, offering consistent switching behavior and tamper-resistant operation when used with the matching actuator.

For OEMs and maintenance teams seeking a reliable, easy-to-install solution, this sensor helps streamline machine guarding and minimize downtime, and it is backed by a 1-year warranty to provide added assurance over your operating cycle.

• Brand: Schmersal
• Series: BNS 33
• Model: BNS 33-11ZG-ST (101146423)
• Sensing principle: Non-contact magnetic (safety)
• Output type: Safety reed contacts (redundant)
• Contact configuration: Dual safety channels
• Housing type: Compact rectangular
• Actuator: Separate magnetic actuator required