Product Description
The Allen-Bradley 1771-OX power contact output module provides four normally open/normally closed output points, each with a status indicator showing the relay coil's energized or de-energized state, and overload protection via a fuse that opens the output circuit. It supports 0-250V AC RMS and 0-175V DC, with a 2A current rating and 200 VA power rating, handling surge currents of 5.5A AC peak for 5 seconds, 6A DC for 500 seconds, and 15A DC for 500 ms (repeatable every 10 seconds). Key specifications include a maximum on-state contact resistance of 0.25 , a maximum backplane current of 550 mA, an isolation voltage of 2500V AC RMS, a 10 ms signal delay (on/off), power dissipation of 2.6-2.9 W, thermal dissipation of 8.9-9.9 BTU/hr, and an operating temperature of 0-60 C.
Is Your Device Showing These Signs?
The Allen Bradley 1771-OX output module commonly experiences failures due to blown output fuses, resulting in a loss of signal to connected field devices. Technicians should inspect the module for short circuits in the external wiring, which can overload and damage the solid-state switching components. Corrosion on the edge connector pins causes communication errors with the PLC backplane, requiring cleaning or replacement. Overvoltage conditions from inductive loads without proper suppression damage the module's internal circuitry, necessitating component-level repair or a full module replacement.
Technical specifications
The Allen-Bradley 1771-OX is a power contact output module with four configurable (normally open/closed) output points, each featuring a status indicator and fuse-based overload protection. It handles AC and DC voltages (up to 250V AC and 175V DC, respectively) with a 2A current rating and specific surge current handling capabilities. Key specs include low on-state resistance, limited backplane current draw, high isolation voltage, short signal delays, and defined power/thermal dissipation within a 0-60C operating temperature range.
Our Repair Process for the
1771-OX
Our repair process for the Allen Bradley 1771-OX output module begins with a thorough inspection for short circuits in the external wiring; technicians must address any shorts to prevent further damage. The next step involves a careful examination of the output fuses; blown fuses are replaced, and the cause of the failure is determined. Technicians then inspect the edge connector pins for corrosion; cleaning or replacement of the connector ensures proper communication. Finally, the module is assessed for damage from overvoltage conditions, and component-level repairs are performed, or the entire module is replaced if necessary, ensuring the module meets 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.
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Ships from Rochester, NY