Schmersal Series Magnetic Non-Contact Safety Switch, Fibreglass Reinforced Thermoplastic Housing, Rectangular, 24V DC BNS33

The Schmersal BNS33-12ZG-2187-10 is a high-reliability magnetic non-contact safety switch designed to monitor the safe alignment of industrial machine guards. Featuring a durable fibreglass reinforced thermoplastic enclosure, this safety device is built to withstand demanding industrial environments and deliver long-lasting performance.

Its rectangular body style enables easy installation onto machinery, and the magnetic actuator principle ensures non-contact operation. The switch utilizes both normally open (NO) and normally closed (NC) safety contacts, enhancing integration flexibility within automation and safety control circuits. With a rated 24V DC operating voltage and maximum switching current of 0.25A, it provides dependable response for safety interlock requirements.

The BNS33-12ZG-2187-10 achieves IP67 ingress protection, granting resistance against dust and water penetration. This rating makes it suitable for environments subject to moisture, particulates, or washdown processes. The device is compatible with other BNS33 series components, making it ideal for scalable safety systems in manufacturing, robotics, agricultural machinery, and automation lines.

Its installation is simplified via an included 1-meter cable with cable terminal interface, allowing flexible integration into existing control panels. The switch operates reliably within a wide temperature range from -25°C to +70°C, supporting both cold storage and elevated temperature operations.

The compact design (88mm x 25mm x 13mm) facilitates mounting in restricted industrial spaces. Safety category 4 compliance supports high-risk machinery requiring stringent protection. The switch is certified to standards including cULus, CE, EAC, and TUV.

This switch features a magnetic coding, triggering response at distances above 18mm, ensuring rapid actuator engagement upon guard misalignment. Maintenance-free operation is achieved due to the absence of mechanical moving parts, delivering durability and reliability.

Designed for hazardous area applications without built-in safety relay, supporting safety management in production, robotics, and agricultural equipment. Black housing color and streamlined enclosure allow inconspicuous integration into machine designs.

Country of Origin is Germany, providing European manufacturing quality.

Industrial use cases include machine guard safety in manufacturing, robotics safety interlocks, agricultural equipment protection, and automation lines requiring stringent personnel safety protocols. Explore the Safety Switches category for compatible solutions and additional Schmersal BNS33 series offerings.