Overview
The Schmersal AZ 335-12ZRK-M20 is a professional-grade safety interlock switch engineered for machinery protection and industrial automation control. This Schmersal interlock switch combines robust metal construction with certified safety functionality, delivering dependable electromagnetic monitoring for guarding systems. The M20 connector interface ensures secure cable integration in harsh industrial environments.
Key Features
- Metal enclosure rated for durability in industrial settings
- M20 x 1.5 cable entry connector for secure, weather-resistant connections
- Actuator heads repositionable in 4 x 90° increments for flexible mounting
- EN 50041 design standards compliance for machine safety
- Monitoring conformance to EN ISO 14119 safety standards
- Positive break functionality with normally-closed contact configuration
Technical Specifications
- Connector Type: M20 x 1.5
- Housing Material: Metal enclosure
- Contact Configuration: Positive break NC (normally-closed)
- Actuator Positioning: 4 x 90° repositionable steps
- Design Standard: EN 50041
- Safety Standard: EN ISO 14119 compliant
- Cable Entry: M20 x 1.5 thread
- Mounting: Flat surface installation with slotted holes
- Environmental: High contact reliability with low voltages and currents
Typical Applications
The AZ 335-12ZRK-M20 is widely deployed in:
- Machine tool guarding and access control systems
- Industrial equipment electrical safety interlocking
- Door and gate locking mechanisms on guarded machinery
- Protective device monitoring in manufacturing automation
- EN ISO 14119-compliant safety monitoring systems
Compatibility & Replacements
Compatible With
- EN ISO 14119 safety interlock monitoring systems
- Industrial control systems requiring positive break contact logic
- Machine guarding applications with M20 connector standards
- Electrical equipment protection and access control circuits
- Low-voltage and low-current monitoring safety networks
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The AZ 335-12ZRK-M20 is a specific model variant within the Schmersal AZ 335 series. Potential alternative or replacement models within the same series should be confirmed against your original equipment documentation.
Works With
- EN 50041 machine safety control systems
- EN ISO 14119 safety-related monitoring applications
- Industrial electrical control panels and safety circuits
- PLC-based machine guarding logic systems
- Positive break contact safety monitoring configurations














