Allen Bradley 440R-M23057

The Allen Bradley 440R-M23057 is a safety relay designed to provide reliable protection in various industrial applications. This MSR15DT model operates on 24V AC/DC and features both automatic and manual modes for flexible control. Its fixed timing is adjustable from 1 to 35 seconds with a half-second reset delay, making it suitable for precise safety timing needs. The relay includes one input with two normally closed contacts, as well as an additional input offering one normally open and one normally closed contact. While it doesn’t support safety mat inputs, this compact 45mm device integrates easily into control systems. Distributed by BSP Automation, the 440R-M23057 combines ease of use with trusted safety performance.