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Product Description
The Allen-Bradley 140G-J6H4-C40 is a robust, 250 Amp, four-pole molded case circuit breaker with a J frame, designed for comprehensive electrical system protection in industrial environments, featuring a 65 kA interrupting rating, electronic LSI overload protection, a 40 Amp thermal current range, 1000V insulation voltage, 8 kV impulse withstand voltage, and durable mechanical/electrical life for reliable heavy-load and fault condition management.
Is Your Device Showing These Signs?
The Allen Bradley 140G-J6H4-C40 molded case circuit breaker commonly experiences issues such as nuisance tripping due to incorrect overload settings or thermal magnetic trip unit malfunction. Field failures often stem from contact erosion caused by repetitive high fault current interruptions, necessitating replacement of the breaker. Connectivity problems arise from loose terminal connections, leading to voltage drops and potential overheating. Calibration drift in the trip unit affects protection accuracy, requiring recalibration or unit replacement. Environmental factors such as excessive humidity or temperature fluctuations accelerate degradation, impacting overall performance and lifespan.
Technical specifications
The Allen-Bradley 140G-J6H4-C40 is a heavy-duty 250 Amp, four-pole circuit breaker designed for industrial electrical system protection. It features a J frame, a 65 kA interrupting rating, electronic LSI overload protection, a 40 Amp thermal current range, and high voltage ratings for insulation and impulse withstand, ensuring reliable performance under heavy loads and fault conditions.
Our Repair Process for the
140G-J6H4-C40
Our repair process for the Allen Bradley 140G-J6H4-C40 molded case circuit breaker begins with a thorough inspection to diagnose the specific failure mode, including verification of overload settings and assessment of the thermal magnetic trip unit. Contact erosion is evaluated, and breakers with significant wear undergo replacement. Terminal connections are tightened to eliminate connectivity issues and voltage drops. Trip unit calibration is checked and adjusted, or the unit is replaced if calibration is not possible. Breakers exhibiting environmental degradation are assessed for overall performance, and components are replaced as needed to ensure proper function and extend service life.
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