Allen-Bradley 800B-SM2A Push Button

Allen-Bradley 800B-SM2A is a 16 mm diameter two-position selector switch from Rockwell Automation’s 800B push-button family. The SM2A variant provides two selectable states for routing or selecting between two circuits or control modes in industrial equipment, making it a compact choice for panel-mounted control applications where space is limited. Identified by the catalog number 800B-SM2A, this operator sits in the widely deployed 800B line, which adheres to the 16 mm format for quick integration into standard control panels. Designed for use in automation environments, the 800B-SM2A enables straightforward two-state operation in machines, conveyors, and process lines, helping operators switch between distinct operating conditions with a single actuation. The combination of a small 16 mm footprint and a two-position arrangement offers a practical balance of visibility and functionality for basic control tasks within industrial panels.