Product Description
The Allen-Bradley/Rockwell Automation 140G-G2C3-D12 circuit breaker, rated at 120 Amps with a 25 kA interrupting capacity, safeguards circuits from overcurrent and short-circuit damage using dual heat-activated bimetal bars and a magnetic short-circuit sensor. It interrupts current flow via its three poles and can be reset after the fault is cleared. Designed for versatile mounting and resistance to harsh conditions (humidity, shock, vibration), it requires cables rated for at least 75C and operates within a 0-40C temperature range to ensure accurate heat detection. Installation and performance are enhanced by available internal and external accessories like flanged cables, motor operators, and auxiliary contacts.
Is Your Device Showing These Signs?
The Allen Bradley 140G-G2C3-D12 molded case circuit breaker commonly experiences issues such as nuisance tripping due to thermal overload or short circuit conditions, requiring inspection of connected loads and breaker calibration. Contact wear and degradation are frequent problems, leading to increased resistance and potential failure, necessitating contact replacement or breaker refurbishment. Handle mechanism malfunctions, including difficulty resetting or operating the breaker, demand handle assembly repair or replacement. Communication module failures within the breaker's electronic trip unit disrupt monitoring and control capabilities, warranting module replacement or firmware updates.
Technical specifications
The Allen-Bradley 140G-G2C3-D12 circuit breaker is a 120 Amp, 25kA device that protects circuits from overcurrent and short-circuit damage using bimetal bars and a magnetic sensor. It features three poles for current interruption, is resettable, and is designed for robust mounting and resistance to harsh environments. It requires 75C rated cables and operates within a 0-40C range. Accessories are available to improve installation and performance.
Our Repair Process for the
140G-G2C3-D12
Our repair process for the Allen Bradley 140G-G2C3-D12 molded case circuit breaker begins with a thorough inspection of connected loads and breaker calibration to address nuisance tripping caused by thermal overload or short circuit conditions. Contact wear and degradation are evaluated, and contact replacement or breaker refurbishment is performed to mitigate increased resistance and potential failure. Handle mechanism malfunctions are resolved through handle assembly repair or replacement, ensuring proper resetting and operation. Communication module failures within the electronic trip unit are rectified via module replacement or firmware updates, restoring monitoring and control capabilities.
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