Allen-Bradley 440R-W23219 Guardmaster Safety Relay

Product Overview

The Allen-Bradley 440R-W23219 Guardmaster MSR310P Safety Relay is a modular safety monitoring relay designed for industrial machine safety applications. It provides monitoring functions for safety devices such as emergency stops, safety switches, and protective guards. The unit operates with 24V DC power supply, supports automatic/manual monitored reset, and provides three normally open solid-state auxiliary outputs for safety system integration.

Note: This model is discontinued by Rockwell Automation, but replacement/maintenance units remain available in the aftermarket.

Specifications

Advantages & Features

• Provides reliable machine safety monitoring
• Supports emergency stop and guard interlock applications
• Compact DIN rail mounting design
• Automatic or monitored manual reset configuration
• Solid-state auxiliary outputs for system communication
• Modular design for flexible safety system expansion
• LED status indication for easier troubleshooting
• Suitable for high-reliability industrial environments

Applications

• Industrial Automation Equipment
• Machine Safety Systems
• Emergency Stop Circuits
• Safety Door Monitoring
• Robotic Work Cells
• Packaging Machinery
• Manufacturing Production Lines
• Factory Automation Systems

Precautions

• Verify compatibility with safety devices before installation.
• Confirm 24VDC power supply requirements.
• Check safety circuit wiring carefully.
• Follow applicable machine safety standards.
• Test safety functions after installation.
• Disconnect power before maintenance.