Product Description
The Allen Bradley (Rockwell Automation) 803-A4RHRA is a rotating cam limit switch module designed for repetitive motion applications where object movement is linked to shaft rotation. This module, part of the 803 family, features a single right-hand shaft extension, a built-in 40:1 reducer (allowing a maximum shaft speed of 150 RPM), and four circuits with 25 Amp NC double break contacts configurable with 2 to 12 independent cam operators. Typically used in packaging, injection molding, and punch press machinery, the 803-A4RHRA actuates contacts at specific shaft rotation angles. Housed in a Type 1 enclosure measuring 5.69" x 7.88" x 7.95" and weighing 22 lbs, it operates between -22F and 150F and should be stored between -22F and 200F. The module can be mounted in any plane and functions in both shaft rotation directions, offering internal timing and dwell adjustments for stationary applications. Its contacts have a maximum DC rating of 2.5 Amps at 115-125 Volts and 1.0 Amps at 230-250 Volts.
Is Your Device Showing These Signs?
The Allen Bradley 803-A4RHRA suffers from common failures including contact degradation, coil burnout, and mechanical wear affecting operational lifespan. Technicians address issues such as contact welding, reduced insulation resistance in the coil, and armature sticking, which cause the relay to fail to energize or de-energize correctly. Troubleshooting involves inspecting contact surfaces, testing coil impedance, and verifying proper spring tension to restore optimal performance. Regular maintenance, including cleaning contacts and replacing worn components, extends the service life of the 803-A4RHRA.
Technical specifications
The Allen Bradley 803-A4RHRA is a rotating cam limit switch module used in repetitive motion applications like packaging and molding. It has a right-hand shaft extension, a 40:1 reducer (max 150 RPM), and four circuits with configurable cam operators. It actuates contacts based on shaft rotation, operates in a wide temperature range, and can be mounted in any plane. It also features internal timing and dwell adjustments and specific DC contact ratings.
Our Repair Process for the
803-A4RHRA
Our repair process for the Allen Bradley 803-A4RHRA begins with a thorough inspection of contact surfaces for welding and degradation, followed by precise testing of coil impedance to identify reduced insulation resistance or burnout. Technicians then verify proper spring tension and address any armature sticking issues. We meticulously clean contacts, replace worn components, and restore optimal performance. This process ensures the relay energizes and de-energizes correctly, extending its service life through diligent maintenance.
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.
Buying Options
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Ships from Rochester, NY