440R-N23114 | Allen-Bradley | Guardmaster Minotaur MSR127TP Safety Relay

Product Overview

The Allen-Bradley 440R-N23114, part of the Guardmaster Minotaur MSR127TP series, functions as a critical safety monitoring hub for industrial machinery. This versatile relay manages inputs from E-stops, light curtains, and safety gates, ensuring a controlled shutdown when the safety circuit breaks. It features a triple-redundant output structure to provide high-level functional safety in demanding environments. We provide this unit as a 100% Brand New, original factory-sealed device to ensure your safety systems meet all regulatory compliance standards.

Technical Specifications

The 440R-N23114 utilizes a compact 22.5mm housing to maximize DIN rail space while maintaining robust electrical switching capabilities.

Engineering Advantages

• Flexible Reset Logic: The 440R-N23114 supports both automatic/manual reset and monitored manual reset. This allows engineers to configure the relay for standard restart or to require a deliberate operator action after a safety violation, enhancing floor safety protocols.

• Removable Terminal Blocks: To reduce maintenance downtime, this model utilizes removable screw-style terminals. Technicians can replace a module without rewiring the entire safety string, eliminating potential wiring errors during field service.

• Cross-Fault Monitoring: The internal logic detects short circuits across the input channels. If a fault occurs in the wiring of a safety gate or E-stop button, the relay prevents a restart, ensuring the system fails to a safe state.

• Universal Input Compatibility: The MSR127TP interfaces seamlessly with standard mechanical switches and dual-channel OSSD (Output Signal Switching Device) signals from light curtains or laser scanners, centralizing safety management into a single module.

FAQs

• Is this product 100% brand new?

  Yes. Every 440R-N23114 we ship is Brand New in the original Allen-Bradley box. We do not sell used, refurbished, or "new-surplus" items.

• What is the difference between the MSR127T and MSR127TP?

  The "P" in 440R-N23114 (MSR127TP) stands for Removable Terminals. The standard MSR127T has fixed terminals. The removable version simplifies installation and speeds up replacement in high-uptime environments.

• Can I use this relay for a Category 4 safety application?

  Yes, when wired correctly with dual-channel inputs and monitoring, this relay supports applications up to Category 4 / PLe (ISO 13849-1) and SIL CL3 (IEC 62061).

• Does the unit support 110V AC power?

  No, the 440R-N23114 requires a 24V AC/DC power supply. Connecting this unit to 110V/230V AC will result in permanent damage to the internal circuitry.