The Allen-Bradley 8021-W1 Roller Limit Switch is a rugged, surface-mount sensor designed for precise end-of-travel and position detection in industrial automation. It features a roller lever actuator with a snap-action contact configuration of 1 normally open and 1 normally closed, rated up to 600 VAC and 10 A. Housed in an industrial metal enclosure with protection ratings of NEMA 1, 3, 4, 6, and 13, it operates from -20°C to +85°C and accepts 1/2" NPT conduit. Common applications include conveyors, packaging lines, machine tools, and material-handling systems, and it lists replacement options such as Allen-Bradley 802T-AP, 802T-AT, and Schneider Electric XCKJ10541.
