Allen-Bradley 800MR-JH2BLA Servo Motor

Allen-Bradley 800MR-JH2BLA is a non-illuminated 22.5 mm round selector switch from the 800MR family, intended for manual operator input in control panels and industrial equipment, and designed to be mounted in standard 22.5 mm openings with a knob-style operator. It provides a 3-position maintained operation with a 1 normally open (NO) and 1 normally closed (NC) contact configuration, enabling simple signaling, start/stop control, and interlock logic in compact control panels. The device uses a standard knob operator and is cataloged as 800MR-JH2BLA, with operator function coded as Maintained (2); this combination identifies the specific mechanical and electrical function for lifecycle testing and replacement in Rockwell/Allen-Bradley part catalogs. Rockwell Automation classifies this part as a non-illuminated 22.5 mm selector switch within the 800MR line, suitable for panel applications where a durable, easy-to-operate manual selector is required.