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The Allen-Bradley 803-B12 Style B Rotating Cam Limit Switch is a robust control mechanism designed for machinery with repetitive cycles, aligning machine motion with shaft operation through its 12 independently operated cams. Each cam switch features 10A snap action contacts (1 NC, 1 NO), allowing for 12A/1.2A AC contact ratings at 600 Volts and a DC rating of 0.1A at 550-600 Volts, facilitated by a spring-loaded cam roller. Supporting a rotational speed of up to 150 RPM, the unit incorporates oversized ball bearings and offers adjustable cam lobes that provide a cam duration range from 14 to 346 degrees, with internal dwell and timing adjustments. Designed for durability, the 803-B12 operates effectively within a temperature range of -22 to 150 degrees Fahrenheit and is housed in a NEMA Type 1 enclosure, with a weight of 47 pounds and dimensions of 411.2 x 144.5 x 200 millimeters, meeting UL, CSA, and CE standards.