Allen-Bradley 800MR-A1B Green Push Button Unit

The Allen-Bradley 800MR-A1B Green Push Button Unit is a 22.5 mm flush-head, momentary push-button operator from Rockwell Automation’s 800MR family, designed for panel-mount installation in industrial control cabinets and machine enclosures where space is tight and reliable start/stop signaling is required. This model features a green cap and a 2 normally open (N.O.) and 2 normally closed (N.C.) contact configuration, enabling flexible wiring schemes for signal and interlock circuits while keeping the overall actuator footprint compact within the 22.5 mm standard. With a flush-head design for clean panel integration, the 800MR-A1B is part of the 22.5 mm push-button lineup that supports quick replacement in established 800MR installations, making it suitable for control panel upgrades or maintenance where a momentary operator is required. Common applications include start/stop control, emergency signaling, and interlock sequencing in automated equipment, where a robust momentary push button is used for routine operator input in industrial environments.