Product Description
The Allen-Bradley 803-A12W is a heavy-duty, 12-circuit rotating cam limit switch (Style A) with a Type 1 enclosure, weighing approximately 20.4 kg (45 lbs). Factory-modified with an external, 48-tooth adjustment sprocket (0.38-inch pitch diameter) for chain drive synchronization, it allows shaft position adjustments relative to the drive mechanism. Suitable for repetitive motion applications correlating shaft rotation with motion, it operates bidirectionally (clockwise or counterclockwise) with an internal dwell feature and timing adjustments accessible only when powered off and stationary. It features a spring-loaded cam-roller assembly on the contact base, a maximum shaft speed of 150 RPM, 25 Amp normally closed double break contacts, a cam duration range of 14 to 346 degrees, and a standard left shaft extension. Operating temperatures range from -22 to 151F, with non-operating temperatures from -22 to 199F, and typical shaft torques of 0.5 lb-in (valley), 3 lb-in (lobe), and 7 lb-in (cam ramp). It can be mounted on any plane.
Is Your Device Showing These Signs?
The Allen Bradley 803-A12W pushbutton commonly experiences issues such as contact degradation leading to intermittent or failed electrical connections. Operators report problems with the operator head becoming loose or detached due to thread wear or physical impact. Environmental factors cause corrosion on the internal components, affecting performance. The legend plate fades or becomes unreadable, necessitating replacement for clear labeling. Actuator binding occurs due to debris accumulation or mechanical wear, impeding smooth operation.
Technical specifications
The Allen-Bradley 803-A12W is a robust, 12-circuit rotating cam limit switch designed for repetitive motion applications. It features a Type 1 enclosure, weighs 45 lbs, and is modified with an external sprocket for chain drive synchronization. It allows bidirectional operation and shaft position adjustments, but only when powered off. Key features include spring-loaded cam-roller assembly, a 150 RPM maximum shaft speed, 25 Amp contacts, a wide cam duration range, and a standard left shaft extension. It operates within a temperature range of -22 to 151F and can be mounted in any orientation.
Our Repair Process for the
803-A12W
Our repair process for the Allen Bradley 803-A12W pushbutton begins with a thorough inspection to diagnose contact degradation, loose operator heads, corrosion, faded legend plates, and actuator binding. We disassemble the unit, clean all components to remove debris and corrosion, and replace any worn or damaged parts, including contacts, operator heads, legend plates, and actuators. Thread wear is addressed through re-tapping or replacement of the affected components. All electrical connections are verified for integrity, and the unit is reassembled, lubricated, and tested to ensure proper functionality and adherence to original performance specifications.
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.
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.