Allen-Bradley 440R-W23222 Guardmaster Safety Relay

Product Overview

The Allen-Bradley 440R-W23222 Guardmaster MSR330P Group 2 Safety Relay is a modular safety monitoring relay designed for industrial machine safety applications. It is used to monitor safety devices such as emergency stops, safety switches, and guard interlocks, providing reliable shutdown control to help protect operators and equipment. The module operates with 24V DC control voltage, features 3 normally open safety outputs and 1 normally closed auxiliary output, and supports DIN rail installation.

Specifications

Advantages & Features

• High-reliability safety monitoring design
• Provides emergency stop and guard monitoring functions
• Three safety output channels for machine shutdown control
• Compact 22.5 mm DIN rail mounting design
• Removable terminal blocks simplify maintenance
• Modular structure for flexible safety system expansion
• Supports industrial safety applications requiring high performance
• LED status indication for easier troubleshooting

Applications

• Industrial Automation Equipment
• Machine Safety Systems
• Emergency Stop Circuits
• Safety Door Interlock Systems
• Robotic Work Cells
• Packaging Machinery
• CNC Machines
• Manufacturing Production Lines

Precautions

• Verify compatibility with safety devices before installation.
• Confirm 24V DC power supply requirements.
• Check safety wiring and terminal connections carefully.
• Perform safety function tests after installation.
• Follow machine safety standards and procedures.
• Disconnect power before maintenance.