Allen-Bradley MSR310P 440R-23219 SER A Guardmaster Safety Relay

The Allen-Bradley MSR310P 440R-23219 SER A Guardmaster Safety Relay is a high-performance safety monitoring module designed to provide dependable protection for personnel, machinery, and automated equipment. As part of the trusted Guardmaster MSR300 series, the Allen Bradley MSR310P 440R-23219 is engineered for industrial safety applications where reliable monitoring, fast response, flexible configuration, and straightforward integration are essential. Its compact design makes it suitable for control cabinets and machine panels with limited installation space.

The Allen Bradley MSR310P 440R-23219 is designed to monitor multiple safety devices, including emergency-stop buttons, safety gates, interlocks, light curtains, and compatible two-hand control stations. By continuously monitoring safety-related inputs, the module can help identify unsafe conditions and support appropriate machine safety responses. Its dual-channel safety input arrangement provides redundant monitoring for suitable safety circuits, helping improve the integrity and reliability of machine protection systems.

A major advantage of the Allen Bradley MSR310P 440R-23219 is its modular architecture. The relay can be used with compatible Guardmaster expansion modules, allowing safety systems to be configured for different machine requirements. This expandable approach can simplify the design of complex safety systems while providing a practical path for adding compatible safety functions. Solid-state outputs support communication with expansion modules and help the Allen Bradley MSR310P 440R-23219 operate as part of a coordinated safety architecture.

For commissioning and maintenance, the Allen Bradley MSR310P 440R-23219 provides LED indicators that offer quick visual diagnostic information. These indicators can help technicians identify operating conditions and troubleshoot safety circuits more efficiently. Automatic or manual reset selection provides additional flexibility, allowing the reset method to be matched to the machine’s safety strategy and operating procedures.

The Allen Bradley MSR310P 440R-23219 is associated with Category 4, Performance Level e, and SIL 3 safety requirements when the complete safety system is properly designed, installed, validated, and maintained according to applicable standards and manufacturer documentation. Actual safety performance depends on the complete system architecture, connected devices, wiring, configuration, and validation process.

🔧 Technical Specifications

Manufacturer: Allen-Bradley (Rockwell Automation)
Series: Guardmaster MSR300
Model: MSR310P
Catalog Number: 440R-23219
Revision: SER A
Function: Safety Relay – Input Module
Supply Voltage: 24 V DC
Inputs: 2 dual-channel safety inputs
Safety Performance: Category 4 / PLe / SIL 3
Response Time: < 25 ms
Reset: Automatic or Manual selectable
Outputs: Solid-state outputs for compatible expansion modules
Mounting: DIN rail
Terminals: Removable screw terminal blocks
Housing: Polyamide, UL 94 V-0 rated
Operating Temperature: –5 °C to +55 °C
Dimensions: 22.5 × 99 × 114.5 mm
Weight: Approx. 170 g
Standards: EN 60204-1, EN 954-1, IEC 61508, UL 508, CSA C22.2 No. 14

💡 Key Features and Benefits

The MSR310P offers dependable safety input monitoring, modular expansion capability, rapid diagnostics, flexible reset selection, compact DIN-rail installation, removable terminals, and solid-state expansion communication. These features make it a versatile choice for industrial machine safety and automation systems.

🏭 Typical Applications

Typical applications include emergency-stop circuit monitoring, safety gate and door interlocking, two-hand control operations, light curtain protection, perimeter guarding, automated machinery, packaging equipment, manufacturing lines, robotic cells, and safety PLC integration.

📦 What’s Included

1 × Allen-Bradley MSR310P 440R-23219 SER A Guardmaster Safety Relay. External wiring, expansion modules, power supplies, safety devices, and accessories are not included unless specifically stated. Verify all system compatibility before installation, commissioning, and final safety validation for your specific application needs carefully.

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