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Product Description
The Allen-Bradley/Rockwell Automation 140U-J2D3-D22 MCCB is a compact, high-performance, 3-pole, 250A frame circuit breaker with a 225A current rating, designed for 400-480VAC operation. Weighing approximately 11.4 pounds, it features a 25kA interrupting rating, protecting circuits by automatically opening on overcurrent conditions within its specified ratings. Its adjustable trip settings allow for use across various voltages and frequencies, providing circuit protection and isolation. Proper selection requires considering application voltage, load current, and available short-circuit current, while installation should occur in a clean, dry environment due to temperature sensitivity. Its molded case design, field-fittable accessories, and compact size simplify installation and configuration, making it suitable for applications with variable loads.
Is Your Device Showing These Signs?
The Allen Bradley 140U-J2D3-D22 molded case circuit breaker commonly experiences issues such as nuisance tripping caused by thermal overload or magnetic trip settings being too sensitive for the application. Technicians address failures related to the breaker's inability to reset after a fault, often stemming from a damaged operating mechanism or internal component failure. Contact wear and degradation on the breaker's contacts lead to increased resistance, heat generation, and ultimately, breaker failure, requiring contact inspection and potential replacement. Calibration drifts in the electronic trip unit affect protection accuracy, necessitating recalibration or replacement of the trip unit to ensure proper circuit protection.
Technical specifications
The Allen-Bradley 140U-J2D3-D22 MCCB is a compact, 225A, 3-pole circuit breaker designed for 400-480VAC systems. It weighs 11.4 pounds, has a 25kA interrupting rating, and adjustable trip settings for flexible circuit protection. Proper selection and installation in a clean, dry environment are crucial. Its molded case and compact design facilitate easy installation and use in applications with varying loads.
Our Repair Process for the
140U-J2D3-D22
Our repair process for the Allen Bradley 140U-J2D3-D22 molded case circuit breaker begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the failure, whether it be nuisance tripping, reset failure, contact degradation, or calibration drift. Technicians meticulously inspect thermal and magnetic trip settings, the operating mechanism, internal components, and contact surfaces for damage or wear. Contact resistance is measured to assess degradation, and the electronic trip unit is tested for calibration accuracy. Repairs include recalibrating or replacing the trip unit, replacing damaged contacts, and overhauling the operating mechanism with component replacements as needed. Following repairs, the breaker undergoes rigorous testing to verify proper functionality and adherence to original performance specifications, ensuring reliable circuit protection.
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
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