Allen-Bradley 800MR-JX4K Push Button Switch Assembly

The Allen-Bradley 800MR-JX4K Push Button Switch Assembly is a 22.5 mm operator from the 800MR family used as the actuator portion of a three-position selector switch in industrial control panels. Designed to mount with compatible 800MR contact blocks and mounting accessories, the JX4K designation identifies a three-position configuration in the 800MR line, enabling operators to select among three circuit paths or settings on a single control station. This compact operator fits standard 22.5 mm panel cutouts, making it suitable for control enclosures where space and modularity matter. Typical applications include machine automation, process control, and equipment start/stop or mode selection, where a robust, mechanical selector provides clear operator feedback and reliable performance in demanding environments. The 800MR family is known for rugged construction and interchangeability with other 800MR/800MB/MR-series components, so engineers often pair the JX4K with matching contacts and enclosures to build a complete control station without custom fabrication.