Allen-Bradley 440R-W23218 Guardmaster Safety Relay

Product Overview

The Allen-Bradley 440R-W23218 Guardmaster MSR320P 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 gates, light curtains, and safety mats. The relay provides reliable safety monitoring and helps prevent hazardous machine operation. It supports 24V DC power supply, DIN rail mounting, and modular safety system expansion.

Specifications

Advantages & Features

• High-reliability safety monitoring function
• Supports emergency stop and safety guard applications
• Modular design for flexible system configuration
• Compact 17.5 mm DIN rail mounting structure
• Removable terminals simplify installation and maintenance
• Solid-state auxiliary outputs for system status monitoring
• LED indicators provide easy diagnostics
• Suitable for high-performance machine safety systems

Applications

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

Precautions

• Verify compatibility with connected safety devices before installation.
• Confirm 24VDC power supply requirements.
• Check safety circuit wiring carefully.
• Ensure correct terminal connections.
• Perform safety function tests after installation.
• Disconnect power before maintenance.