Product Description
The Allen-Bradley 140G-J6C4-C30 is a robust, 250A, four-pole molded case circuit breaker with a 65kA interrupting rating, designed for industrial use and high-voltage (1000V) applications, offering reliable overcurrent protection at 30A through fixed thermal-magnetic technology, and capable of withstanding 8kV impulse voltages, while maintaining a durable mechanical and electrical lifespan despite its relatively lightweight 7.72-pound construction.
Is Your Device Showing These Signs?
The Allen Bradley 140G-J6C4-C30 molded case circuit breaker commonly experiences issues related to thermal overloads, causing nuisance tripping due to incorrect current settings or ambient temperature fluctuations. Mechanical failures, such as a jammed operating mechanism or a broken trip unit, prevent proper breaker operation. Contact erosion from repeated arcing during interruption events degrades performance, leading to increased resistance and potential overheating. Calibration drift in the electronic trip unit results in inaccurate protection characteristics, necessitating recalibration or replacement. Furthermore, ensure proper torque specifications are followed during installation to prevent connection failures and potential arcing faults.
Technical specifications
The Allen-Bradley 140G-J6C4-C30 is a durable 250A, four-pole circuit breaker designed for industrial, high-voltage (1000V) applications. It provides 30A overcurrent protection using fixed thermal-magnetic technology, has a 65kA interrupting rating, can withstand 8kV impulse voltages, and offers a long mechanical and electrical lifespan despite being relatively lightweight.
Our Repair Process for the
140G-J6C4-C30
Our repair process for the Allen Bradley 140G-J6C4-C30 molded case circuit breaker begins with a thorough inspection to diagnose thermal overloads, mechanical failures, contact erosion, or calibration drift. We verify current settings and ambient temperature conditions to address nuisance tripping. Mechanical components are inspected for jams or breaks, and the operating mechanism and trip unit are repaired or replaced as needed. Contact surfaces are cleaned and reconditioned to mitigate erosion and reduce resistance; severely damaged contacts necessitate replacement. The electronic trip unit undergoes recalibration to restore accurate protection characteristics; units beyond calibration are replaced. Finally, all connections are tightened to the specified torque to prevent connection failures and arcing faults, ensuring optimal performance and reliability.
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