Product Description
The Allen-Bradley 140G-J0F3-D12 is a compact, 125A, 480/600VAC, J Frame molded case circuit breaker from the 140G series, designed for thermal overcurrent and short-circuit protection in industrial control applications. It features adjustable thermal (87.5-125A) and magnetic (625-1250A) trip settings, a 100kA breaking capacity at 480VAC, and a 1000V insulation voltage. With a rated impulse withstand voltage of 8kV and an electrical lifespan of 120 operations per hour, it offers 3-pole wiring with end cap terminals and flexible mounting options without derating. It's compatible with accessories like auxiliary contacts, UVR, and shunt trips for enhanced performance and PLC connectivity, operates at 80% efficiency at 40C, and is UL listed, CE marked, and CSA certified, with dimensions of approximately 105 x 82.5 x 160 mm.
Is Your Device Showing These Signs?
The Allen Bradley 140G-J0F3-D12 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, potentially caused by high fault currents or frequent switching, leading to increased resistance and overheating. Calibration drift in the electronic trip unit necessitates recalibration or replacement to ensure accurate protection. Inspect the breaker for mechanical damage, including broken handles or damaged enclosures, which compromise safety and performance. Resolve these issues through proper setting adjustments, component replacement, or complete breaker replacement to maintain circuit protection integrity.
Technical specifications
The Allen-Bradley 140G-J0F3-D12 is a compact 125A circuit breaker designed for industrial applications, providing thermal overcurrent and short-circuit protection. It features adjustable trip settings, a high breaking capacity, and is compatible with various accessories for enhanced functionality and PLC integration. It's also certified by UL, CE, and CSA.
Our Repair Process for the
140G-J0F3-D12
Our repair process for the Allen Bradley 140G-J0F3-D12 molded case circuit breaker begins with a thorough inspection for mechanical damage, contact erosion, and signs of overheating. We verify overload settings and recalibrate or replace the electronic trip unit if calibration drift is detected. Component replacement, specifically addressing eroded contacts, is performed as needed. If the breaker exhibits irreparable damage or malfunction, complete breaker replacement is executed to guarantee circuit protection integrity. Proper setting adjustments are always implemented post-repair to prevent nuisance tripping.
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