ABB LS45M21B11 Limit Switch

The ABB LS45M21B11 Limit Switch delivers reliable mechanical position sensing and end-of-travel control for industrial automation. A lever-type actuator with a snap-action mechanism provides one normally open and one normally closed contact for precise switching. It is rated up to 240 VAC or 250 VDC and 5–10 A (application dependent), housed in an industrial metal/plastic enclosure with IP65 protection and an operating temperature range of -20°C to +85°C. Designed for panel or surface mounting with a threaded conduit entry, it is commonly used on conveyors, packaging and bottling lines, machine tools, and material handling to prevent overtravel and protect equipment, with common replacements including ABB LS45M21B10, ABB LS45M21B12, and Schneider Electric XCKJ167.