Product Description
The Allen-Bradley 140G-H15I4-D12 molded case circuit breaker, a high-performance, four-pole device with a H-frame, 125-amp rating, and electronic LSIG protection, reliably safeguards electrical systems against short circuits up to 150 kA, handles currents up to 120A, and withstands surges with its 1000V insulation and 8kV impulse rating; its durable design (240 mechanical/120 electrical operations per hour) and light weight (3.53 lbs) facilitate easy installation and continuous operation.
Is Your Device Showing These Signs?
The Allen Bradley 140G-H15I4-D12 molded case circuit breaker commonly experiences issues such as nuisance tripping due to incorrect overload settings or thermal magnetic trip unit malfunction. We address problems with the breaker's inability to reset after a fault, often traced to a damaged operating mechanism or a defective trip coil. Furthermore, contact erosion from repeated arcing and failure to maintain proper dielectric strength are common problems we resolve through contact refurbishment or complete breaker replacement. We also handle issues related to undervoltage release (UVR) failures and ensure proper coordination with upstream and downstream protective devices to prevent cascading failures.
Technical specifications
The Allen-Bradley 140G-H15I4-D12 is a robust, 125-amp, four-pole molded case circuit breaker designed for reliable electrical system protection. It features electronic LSIG protection, a high short-circuit interrupting capacity (150kA), and surge resistance. Its durable, lightweight design allows for easy installation and continuous operation.
Our Repair Process for the
140G-H15I4-D12
Our repair process for the Allen Bradley 140G-H15I4-D12 molded case circuit breaker begins with a thorough inspection to identify the root cause of the malfunction, whether it is nuisance tripping, failure to reset, contact erosion, or UVR failure. We address nuisance tripping by verifying and correcting overload settings, or by replacing the thermal magnetic trip unit if it is defective. Reset failures are resolved through repair or replacement of the damaged operating mechanism or defective trip coil. Contact erosion is rectified through contact refurbishment or complete breaker replacement to restore dielectric strength. We troubleshoot and repair or replace faulty UVR components, and we ensure proper coordination with upstream and downstream protective devices to prevent cascading failures, guaranteeing the breaker operates within specified parameters.
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.

















