Overview
The Allen-Bradley 440R-D23025 is a Guardmaster monitoring safety relay from Rockwell Automation’s trusted safety control line. This Series A unit is engineered for dual-input monitoring in industrial machinery, production systems, and safety-critical control applications. The 440R-D23025 provides predictable, repeatable safety function monitoring with manual or automatic reset configuration options.
Key Features
- Dual-input monitoring capability for safety function verification
- Compact DIN-rail mountable design for cabinet integration
- Manual and automatic/manual reset configuration options
- Safety-rated output contacts rated for control circuit duty
- LED status indicators for operational visibility
- Designed for integration with Guardmaster device networks
Technical Specifications
Complete specifications should be verified from the manufacturer datasheet. Key operational parameters include input monitoring capability, output switching ratings, and response times per SIL-rated safety standards.
Typical Applications
- Machine guarding and gate safety monitoring
- Emergency stop circuit confirmation and verification
- Safety interlock validation systems
- Personnel protection and machinery control
- Industrial production line safety integration
- Plant-wide safety network endpoints
Compatibility & Replacements
Compatible With
- Allen-Bradley Guardmaster safety relay networks
- Guardmaster single-wire safety input devices (L12 input)
- Standard DIN-rail mounted control cabinets
- 24 VDC and AC safety control systems
- Rockwell Automation safety device ecosystems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Related monitoring relay models in the 440R series include the 440R-D23022 and 440R-D23021 variants.
Works With
- Guardmaster dual input (DI) safety relay modules
- Guardmaster expansion units and monitoring networks
- Rockwell Studio 5000 and legacy RSLogix programming environments for configuration
- EtherNet/IP safety network interfaces (440R-ENETR)
- Manual and automated monitoring control systems
