Product Description
The Allen-Bradley 140G-K0I4-D40 molded case circuit breaker, manufactured by Rockwell Automation, is a robust, four-pole device with a 400 Amp capacity and a high 100 kA interrupting rating, designed for reliable protection in demanding, multi-phase applications. Its electronic LSIG protection, 1000V insulation voltage, and 8 kV impulse withstand capability, combined with a manageable 9.15-pound weight and durable mechanical/electrical life ratings, ensure long-term system protection against electrical faults.
Is Your Device Showing These Signs?
The Allen Bradley 140G-K0I4-D40 molded case circuit breaker commonly experiences issues such as nuisance tripping due to incorrect overload settings or thermal magnetic trip unit malfunction. Contact wear and degradation of the operating mechanism are frequent causes of failure, leading to breaker failing to close or open properly. Calibration drift in the electronic trip unit affects accurate current sensing and protection. Damage to the breaker enclosure and terminal connections from environmental factors or improper installation compromises safety and performance. Replacement of the entire breaker is often necessary when these issues arise.
Technical specifications
The Allen-Bradley 140G-K0I4-D40 is a heavy-duty, four-pole, 400 Amp circuit breaker from Rockwell Automation. It offers reliable protection in multi-phase systems with its high 100 kA interrupting rating, electronic LSIG protection, and robust insulation and impulse withstand capabilities. Its durable design ensures long-term performance against electrical faults.
Our Repair Process for the
140G-K0I4-D40
Our repair process for the Allen Bradley 140G-K0I4-D40 molded case circuit breaker begins with a thorough inspection to diagnose the specific failure, including assessment of the thermal magnetic trip unit, operating mechanism, and terminal connections. We address nuisance tripping by verifying and correcting overload settings, and we replace malfunctioning thermal magnetic trip units. Contact wear and degradation of the operating mechanism are resolved through refurbishment or component replacement, ensuring proper breaker operation. Calibration drift in electronic trip units is corrected through recalibration or replacement of the unit. Damaged enclosures and compromised terminal connections necessitate component replacement to restore safety and performance. When component-level repairs are insufficient, the entire breaker is replaced to guarantee 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.