Smart Safety with Higher Holding Force

Allen-Bradley 440G-EZAllen-Bradley® 440G-MZ Guard Locking Switch from Rockwell Automation helps protect personnel and is suitable for use with many types of guard doors, including full-sized guard doors, which allow full body access to the safeguarded area, where a high holding force and a wide tolerance to guard misalignment are commonly required.

The 440G-MZ has embedded GuardLink® technology making it a smart device that provides the benefits of enunciation and product-specific diagnostics. It reduces wiring, simplifies installation and enables premier integration via an Ethernet/IP communications adapter and safety logic device when connected in a GuardLink system via a passive tap. Alternatively, it can operate as an OSSD device, connected directly to a safety logic device or safety I/O device. The OSSDs or GuardLink safety outputs are energized only when the switch is both closed and locked.

440G-MZ safety switches are TÜV-certified up to SIL 3, PLe, Cat 4 – the highest level of safety for door position monitoring and guard locking. RFID coded actuators help prevent actuator substitution as described in ISO 14119. Typical applications include machines which are surrounded by perimeter fences with guard doors for full body access (for example, robotic assembly or packaging machines), machines with built-in full-size doors (for example, bottling machines) and small to medium CNC machines.

Features & Benefits:
  • Optimized for full body access
  • High holding force of 2500 N for guard locking a full-size guard door
  • Tongue actuator movement in multiple axes facilitates +/-5 mm misalignment tolerance
  • Flexibility to meet your needs:
    • Can operate as a standalone device (5-pin OSSD connection) or in a GuardLink system
    • Flexible mounting with three entry points on hinged or sliding doors
  • Network integration via EtherNet/IP communication adapter with safety relay
  • RFID unique (high) or standard (low) coded actuator for flexible level of tamper-proofing
  • Highly visible 270° wrap-around LEDs for LINK and DEVICE status
  • Ingress rating: IP65, IP66, IP67, IP69k
  • SIL 3, PLe, Cat 4 – the highest level of safety

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