Product Description
The Allen-Bradley 140G-H6F3-D10 is a 3-pole, 100A molded case circuit breaker (MCCB) from the 140G series, offering electronic or thermal/magnetic trip options. Ideal for control panel protection, the 140G series (10-3000A) is compact, globally approved (UL, CSA, IEC), and requires power disconnection before installation/service. Install within a suitable enclosure per NFPA 70E. The 140G-H6F3-D10 has a maximum operating temperature of 104F, requires 8 AWG copper grounding, and should be stored between -40 and 80C when unused. It features an adjustable thermal/magnetic trip (70-100A thermal, 500-1000A magnetic), an 8kV impulse voltage rating, and an electrical life of 8000 operations (120/hour at 415VAC). Its interrupting ratings are 150kA at 240VAC, 65kA at 480VAC, and 25kA at 600VAC.
Is Your Device Showing These Signs?
The Allen Bradley 140G-H6F3-D10 molded case circuit breaker commonly experiences issues such as nuisance tripping caused by incorrect overload settings or thermal magnetic trip unit malfunction. Field failures often stem from contact erosion due to high fault currents or repetitive switching, necessitating replacement of the breaker. Connectivity problems arise from damaged terminal lugs or loose connections, leading to voltage drops and potential overheating. Calibration drift in the trip unit impacts protection accuracy, requiring recalibration or component replacement. Internal component failures within the operating mechanism or arc chutes also contribute to breaker malfunction.
Technical specifications
The Allen-Bradley 140G-H6F3-D10 is a 100A, 3-pole molded case circuit breaker (MCCB) from the 140G series, suitable for control panel protection. It features adjustable thermal/magnetic trip settings, global approvals (UL, CSA, IEC), and specific operating/storage temperature ranges. It also has defined interrupting ratings at different voltages and requires proper grounding and installation within an enclosure, with power disconnection before service.
Our Repair Process for the
140G-H6F3-D10
Our repair process for the Allen Bradley 140G-H6F3-D10 molded case circuit breaker begins with a comprehensive inspection to identify the root cause of the malfunction, focusing on common issues such as nuisance tripping, contact erosion, connectivity problems, calibration drift, and internal component failures. The breaker undergoes rigorous testing to verify the reported issues and assess the condition of the thermal magnetic trip unit, terminal lugs, operating mechanism, and arc chutes. We replace eroded contacts, repair or replace damaged terminal lugs, recalibrate the trip unit to factory specifications, and address any internal component failures within the operating mechanism or arc chutes. Following repairs, the breaker is subjected to thorough testing to ensure it meets all performance standards and protection accuracy requirements before being returned to service.
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.