Product Description
The Allen-Bradley 140U-H6C3-C30-B is a durable, conformally-coated, 125A molded case circuit breaker with a fixed thermal/magnetic trip, a 30A trip current, and a standard busbar mounting base. This Series A, H-frame breaker features a metal frame with high-quality insulating material for extended lifespan, and includes contacts for circuit connection. Its trip unit provides automatic protection against thermal overload, short circuit, and ground fault. Rated for 480VAC with a 65kA interrupt rating, it supports both single-phase and three-phase power supplies. Designed to carry load current and withstand interruption heat, it operates reliably between -25 and 60 degrees Celsius and up to 2000 meters altitude, but requires protection from electrostatic discharge.
Is Your Device Showing These Signs?
The Allen Bradley 140U-H6C3-C30-B molded case circuit breaker commonly experiences issues such as nuisance tripping due to incorrect overload settings or thermal magnetic calibration drift. Contact wear and degradation of the operating mechanism cause failure to latch or open upon command. Internal short circuits and insulation breakdown result in breaker failure, necessitating replacement. Diagnose these issues through insulation resistance testing, contact resistance measurement, and verification of trip unit settings against the application's load profile.
Technical specifications
The Allen-Bradley 140U-H6C3-C30-B is a robust 125A circuit breaker designed for durability and protection. It features a fixed thermal/magnetic trip set at 30A, a metal frame with high-quality insulation, and provides overload, short circuit, and ground fault protection. It's rated for 480VAC with a 65kA interrupt rating, supports single and three-phase power, and operates reliably in a range of environmental conditions.
Our Repair Process for the
140U-H6C3-C30-B
Our repair process for the Allen Bradley 140U-H6C3-C30-B molded case circuit breaker begins with a thorough diagnostic assessment. Insulation resistance testing is performed to identify internal short circuits and insulation breakdown. Contact resistance is measured to evaluate contact wear and degradation. Trip unit settings are verified against the application's load profile to determine if nuisance tripping is due to incorrect settings. If testing reveals irreparable damage, such as internal short circuits or a failure to latch, the breaker requires replacement. Otherwise, adjustments to the trip unit settings are made to correct nuisance tripping issues.
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.