Overview
The Schmersal AZ16 ZVRK-M20 is a keyed safety interlock switch engineered for movable machine guard door applications in industrial automation. This safety interlock switch combines robust construction with proven reliability, meeting international safety standards for machinery protection. The unit integrates a separate actuator key mechanism to ensure reliable guard door status monitoring and machine lockout functionality.
Key Features
- Keyed interlock switch with separate actuator for positive guard door control
- Dual normally closed (2NC) screw-terminal contacts for fail-safe configuration
- M20 × 1.5 threaded body mounting for flexible installation options
- IP67 rated, glass fiber reinforced thermoplastic enclosure resistant to soiling and environmental contaminants
- Three M20 cable entry ports with large wiring compartment for quick commissioning
- Slotted adjustment holes for precise guard door alignment
- Double-insulated design and multiple coding options for customization
Technical Specifications
- Contact Configuration: 2NC (Dual Normally Closed)
- Actuator Type: Separate keyed actuator
- Mounting: M20 × 1.5 threaded body
- Enclosure Material: Glass fiber reinforced thermoplastic
- Enclosure Rating: IP67
- Terminal Type: Screw connection
- Dimensions: 30 mm L × 52 mm W × 90 mm H
- Insulation: Double-insulated construction
- Cable Entries: 3 M20 × 1.5 ports
Typical Applications
- Movable machine guard door safety interlocking on production machinery
- Press brake and punch press guard door safety control
- Injection molding equipment access door protection
- Industrial machine enclosure safety monitoring
- Machine tool guard door interlock systems
- Conveyor system access point safety switches
Compatibility & Replacements
Compatible With
- Schmersal AZ15/AZ16 series safety switch ecosystem
- Standard industrial safety control circuits and PLC safety modules
- Fail-safe safety controllers and safety relays
- Machine guarding systems using M20 threaded switch mounting
- ISO 13849-1 and EN 61800 safety-rated architectures
Replaces / Drop-In Replacement For
- Earlier revision AZ16 ZVRK-M20 models (historical equivalent)
- Schmersal part number 801000002 (legacy designation)
Works With
- Schmersal optional safety controllers and accessories
- Standard industrial relay logic and PLC safety modules
- Screw-terminal safety circuits and wiring harnesses
- M20 cable glands, adapters, and pilot light kits (available separately)
- Schmersal door holding magnet kits and ball latch assemblies
