Rockwell Automation Publication 440R-UM013G-EN-P - December 2022 11
Chapter 1 Overview
SI Safety Relay
(Cat.No.440R-S12R2)
The SI safety relay has one dual-channel input with two electromechanical relay outputs. The
SI safety relay can be configured for automatic or monitored manual reset by adjusting the
switch on the front. The SI safety relay also has an SWS output.
The SI safety relay is similar in functionality to the MSR126 monitoring safety relay.
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