Allen-Bradley 440R-D23166 - Two-Hand Control Safety Relay, 24V DC, 2 N.O. immediate safety outputs

Allen-Bradley 440R-D23166 Two-Hand Control Safety Relay — MSR125H two-hand control monitoring relay. The Allen-Bradley 440R-D23166 is a Guardmaster MSR125H safety relay configured for two-hand control monitoring. It operates from a 24V DC supply and provides 2 N.O. immediate safety outputs through fixed terminals. The relay supports automatic/manual reset and is used to enforce synchronous two-hand actuation of machinery..

MPN / SKU: 440R-D23166

440R-D23166 Applications

The 440R-D23166 MSR125H is applied where operators must use both hands to initiate a machine cycle, keeping hands clear of hazardous motion. It monitors two input channels for synchronous actuation within a fixed time window. The 2 N.O. immediate safety outputs interrupt the machine actuator circuit if either hand is released. Fixed terminals and a compact DIN-rail housing suit press, punching, and assembly machine control panels. It fits Category up to 4 / PLe two-hand control architectures per the relevant standards.

440R-D23166 Specifications