The Solenoid Interlocks by Schmersal are engineered to provide reliable guard locking and controlled access to hazardous zones in industrial automation systems. These devices combine a mechanical interlock with an electromagnetic solenoid, ensuring that safety doors cannot be opened while machinery is running or until hazardous movements have completely stopped.
They are widely used to secure hinged, sliding, or removable guards, preventing access to dangerous areas where risks such as run-on movements of chains, rollers, or shafts may still be present even after power is switched off.
Schmersal offers a wide range of solenoid interlocks including AZM, MZM, and RFID-based models, designed for different industrial requirements. Advanced models (such as AZM200 and AZM300 series) feature intelligent diagnostics, LED status indicators, and flexible mounting, enabling easy installation and real-time monitoring of guard status.
Modern variants integrate RFID coding technology, which provides high protection against tampering and unauthorized bypassing. These devices can also be configured for power-to-lock or power-to-unlock operation, depending on whether the priority is personnel safety or process protection.
With high holding forces (up to 2000 N or more), robust housings, and protection ratings up to IP67/IP69K, Schmersal solenoid interlocks are designed to perform reliably even in harsh industrial environments.
Additionally, features such as manual release, emergency escape options, and series wiring capabilities make these interlocks highly versatile for complex automation systems.
Key Features & Specifications
• Electromagnetic guard locking mechanism for controlled access
• Prevents opening of safety doors and guards during hazardous conditions
• High holding force (up to approx. 2000 N or more depending on model)
• Available with RFID coding for anti-tampering protection
• Supports power-to-lock and power-to-unlock configurations
• Suitable for hinged, sliding, and removable guards
• Compact and modular design with flexible mounting options
• Integrated diagnostics and LED status indicators for monitoring
• Manual release and emergency escape options for safety
• Protection ratings up to IP67/IP69K for harsh environments
• Series wiring capability for multiple device integration
• Compatible with safety relays, PLCs, and automation systems
• Compliant with international safety standards (ISO 13849, IEC 60947)
Applications
Solenoid Interlocks by Schmersal are widely used in:
• Industrial automation and machine safety systems
• Robotic work cells and automated production lines
• Conveyor and material handling equipment
• Packaging and processing machinery
• Safety doors, gates, and guard locking systems
• Automotive, steel, chemical, and manufacturing industries
The Solenoid Interlocks by Schmersal provide a high-performance, tamper-resistant, and reliable safety solution, ensuring that hazardous machine areas remain securely locked until safe conditions are achieved—helping industries maintain safety, compliance, and operational efficiency.
