440R-S13R2 | Allen-Bradley Guardmaster Single Input Safety Relay, 24V DC

The Allen-Bradley 440R-S13R2 is a single-input, dual-channel safety relay designed to monitor emergency stop circuits, proximity switches, and other safety devices. It provides a reliable interface between input safety components and output actuators such as motor starters or valves. With three normally open safety outputs and one solid-state auxiliary output, it offers high-performance control and flexibility. This relay belongs to the Guardmaster series and is widely used in industrial machine safety applications.

This relay includes three normally open (N.O.) safety outputs and one solid-state auxiliary output. The safety outputs are typically wired to actuators or control relays that stop machines when a hazard is detected. The auxiliary output provides a status signal for controllers or indicators. These outputs make the relay highly versatile for complex safety scenarios.

Yes, certain variants of the 440R-S13R2 family offer optional EtherNet/IP connectivity for easy integration into distributed control systems. This allows real-time status monitoring and diagnostics over standard industrial networks. It improves maintainability and reduces system downtime. Ethernet-enabled models must be specified separately based on control architecture.

Yes, the relay features built-in LED indicators for input, output, and status diagnostics. These LEDs help maintenance personnel and operators monitor relay operation at a glance. Faults or wiring issues can be quickly identified, reducing troubleshooting time. Visual feedback improves system reliability and uptime.

The Allen-Bradley 440R-S13R2 has a narrow 22 mm width, with height and depth typically around 99 mm (H) × 114 mm (D), depending on variant. This slim design is ideal for compact control cabinets. Its DIN rail mounting style allows for quick installation alongside other relays or terminal blocks. The space-saving form factor makes it suitable for high-density panel layouts.

Yes, the 440R-S13R2 is currently an active product in Allen-Bradley’s safety relay lineup. It is available from Rockwell Automation and authorized distributors. However, always confirm current lifecycle status if you're designing long-term systems, as part numbers and support may evolve over time. Product availability is generally strong due to its wide usage in industrial automation.