Allen Bradley 440R-W23218 | Guardmaster MSR320P Safety Relay Module

Product Description

The Allen Bradley 440R-W23218 Guardmaster MSR320P is a modular safety relay designed for monitoring and controlling machine safety functions. Built for industrial environments, it provides dependable relay switching and integrates into safety systems requiring certified compliance. Its compact design and DIN rail mounting make installation straightforward, while its robust construction ensures long-term reliability.

Technical Specifications

• Manufacturer Allen Bradley

• Product Line Guardmaster Safety Relays

• Product Type Safety Relay Module

• Part Number 440R-W23218

• Relay Type MSR320P

• Category Safety Systems

• Subcategory Safety Relay

• Weight 0.75 lbs (0.34 kg)

• Mounting Style DIN rail

• Operation Modular monitoring safety relay

• Certifications UL, CE, CSA (legacy compliance)

Application Scenarios

• Machine safety monitoring in industrial automation systems

• Integration into modular Guardmaster relay networks

• Applications requiring certified safety relay modules for operator protection

FAQ

Q: What type of relay is the 440R-W23218?  A: It is a Guardmaster MSR320P modular monitoring safety relay.

Q: How is the module installed?  A: It is DIN rail mountable for easy integration into control panels.

Q: What is the weight of the unit?  A: Approximately 0.75 lbs (0.34 kg).

Comparable Models

• 440R-W23218: MSR320P modular safety relay (this model)

• 440R-W23221: MSR330P safety relay with immediate output response

• 440R-W22917: MSR127 dual-channel safety relay