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Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.


Product Description
The Allen-Bradley 803-A12 is a robust Bulletin 830 rotating cam limit switch with 12 circuits designed for demanding, repetitive-cycle machinery where shaft rotation and machine motion are synchronized. This Style A switch features normally-closed, 25A double-break contacts, a maximum shaft speed of 150 RPM, a standard left-hand shaft extension, and adjustable cam durations from 14 to 346 degrees. It includes a spring-loaded cam-roller assembly and adjustable internal dwell and timing settings (adjustable only when unpowered and stationary). Operating within a temperature range of -22 to 151F (storage: -22 to 199F), the 803-A12 can rotate clockwise or counterclockwise, fits a Type 1 enclosure, and weighs approximately 45 pounds. Its typical shaft torque ratings per cam are 0.5 in-lbs (roller in valley), 7 in-lbs (roller up ramp), and 3 in-lbs (roller on lobe).
Technical specifications
The Allen-Bradley 803-A12 is a heavy-duty rotating cam limit switch with 12 circuits, suitable for synchronized machinery with repetitive cycles. It features normally-closed, 25A contacts, a 150 RPM maximum shaft speed, adjustable cam durations, and a spring-loaded cam-roller. It operates in a wide temperature range and can rotate in either direction. Adjustments to dwell and timing must be made when the switch is unpowered and stationary.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.

Ships from Rochester, NY