Product Description
The Allen-Bradley 140G-J0C4-C30 is a robust, 4-pole, 250A J-frame molded case circuit breaker with fixed thermal-magnetic protection, a 100kA interrupting rating, and a 30A operating current, designed for reliable overload and short-circuit protection in demanding applications, featuring a 1000V insulation voltage, 8kV impulse withstand voltage, and a mechanical/electrical lifespan of 240/120 operations per hour, respectively, while weighing 7.72 pounds for easy installation.
Is Your Device Showing These Signs?
The Allen Bradley 140G-J0C4-C30 molded case circuit breaker commonly exhibits issues such as nuisance tripping caused by incorrect overload settings or thermal magnetic trip unit malfunction. We address contact erosion due to frequent switching or high fault current, which reduces interrupting capacity. Calibration drift in the electronic trip unit leads to inaccurate protection, requiring recalibration or replacement. Handle mechanism failures prevent proper breaker operation, necessitating repair or component replacement. We resolve communication faults in breakers with communication modules, ensuring seamless integration with industrial automation systems.
Technical specifications
The Allen-Bradley 140G-J0C4-C30 is a durable 250A, 4-pole circuit breaker designed for heavy-duty overload and short-circuit protection. It features fixed thermal-magnetic protection, a 100kA interrupting rating, a 30A operating current, and high insulation and impulse withstand voltages. It's built for long life with a specified mechanical/electrical lifespan and weighs 7.72 pounds for easier installation.
Our Repair Process for the
140G-J0C4-C30
Our repair process for the Allen Bradley 140G-J0C4-C30 molded case circuit breaker begins with a thorough inspection to diagnose nuisance tripping, contact erosion, calibration drift, handle mechanism failures, and communication faults. Overload settings are verified and adjusted, and thermal magnetic trip units are tested for malfunction, with replacement performed as needed. Contact surfaces are reconditioned or replaced to restore interrupting capacity. Electronic trip units undergo recalibration, or complete replacement if necessary, to ensure accurate protection. Handle mechanisms are repaired or replaced to guarantee proper breaker operation. Communication modules are diagnosed and repaired to restore seamless integration with industrial automation systems.
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.