Allen-Bradley 800FM-KR21MX11 Key Spring Return Selector Switch

Allen-Bradley 800FM-KR21MX11 is a two-position, 22.5 mm metal-keyed selector switch with a spring-return mechanism from the right and left-key removal, configured with standard key code 3825 and a contact arrangement of 1 normally open and 1 normally closed. The rugged die-cast zinc alloy housing is chromate-plated for corrosion resistance, and the unit is supplied without a power module. Designed for panel mounting in industrial control applications, the KR21MX11 variant is part of the 800F family and fits 22.5 mm cutouts for secure operator input. This catalog item is widely documented by Rockwell Automation and distributors like Kirby Risk and Platt Electric as a 2-position keyed selector switch with spring return from the right and left-key removal, reinforcing its compatibility with standard KR-series configurations in 800FM installations.