Allen-Bradley 442G-MABL-URM-C03 Safety Interlock System

 

 

Product Overview

The Allen-Bradley 442G-MABL-URM-C03 is a Guardmaster 442G Multifunctional Access Box (Safety Interlock System).

It is a high-end integrated safety door system combining:

• guard locking (door lock)
• safety interlock monitoring
• E-Stop function
• operator control buttons (optional)
• network safety integration (depending version)

Key Specifications (verified from manufacturer data)

• Brand: Allen-Bradley (Rockwell Automation)
• Series: Guardmaster 442G Multifunctional Access Box
• Model: 442G-MABL-URM-C03
• Type: Power-to-Lock guard locking module (PTL)
• Connector: M23 industrial connector (19-pin style)
• Function: Guard locking + safety monitoring + control interface
• Safety level: Suitable for PL e / Category 4 safety systems (ISO 14119 compliant design)
• Locking force: high holding force (around 2000 N class depending configuration)
• Power supply: 24 VDC system (typical for 442G platform)
• Design: Right-hand guard version (URM = right mounting configuration)
• Safety concept: RFID-coded actuator + electronic guard locking

What It Does (Simple Explanation)

This system is used on machine safety doors.

It performs multiple jobs at once:

1. Door closes → system detects coded actuator
2. Safety lock engages (door cannot open)
3. Machine is allowed to run only when:
   • door is closed
   • lock is active
   • safety conditions are satisfied
4. Optional functions:
   • E-Stop button on the door
   • push buttons for operator control
   • status LEDs for diagnostics

Key Features

• Integrated safety door handle system
• RFID-coded anti-tamper actuator
• High-force guard locking (industrial machine safety)
• Power-to-Lock safety design
• Optional E-Stop + operator controls built in
• Diagnostic LEDs for status monitoring
• Designed for CIP Safety / safety PLC integration

Advantages

• Very compact safety door solution (no multiple components needed)
• High tamper resistance (coded actuator)
• Strong mechanical locking force
• Reduces wiring complexity on machine doors
• High safety category (used in PL e systems)
• Clean industrial machine design

Applications

• Robotics safety cells
• Automotive manufacturing lines
• Packaging machinery
• CNC machine guarding
• High-risk industrial automation equipment
• Fully enclosed production machines