Product Description
The Allen-Bradley/Rockwell Automation 140U-JD6D3-D12 is a thermal-magnetic, three-pole circuit breaker from the 140U product group, designed for industrial protection and use in a size 4 NEMA starter. It features a JD frame, a 125 Amp continuous current rating, an adjustable magnetic trip range of 625-1250 Amps, and an interrupting rating of 60-69 kA. It trips at 100-125% of its 100 Amp current rating, provides 97 Amps output, and is rated for 60 HP at 460V or 60-75 HP at 575V. It lacks internal control modules, carries an IP2X protection rating when wired, and operates between -25 to 60C, with a storage range of -40 to 80C.
Is Your Device Showing These Signs?
The Allen Bradley 140U-JD6D3-D12 molded case circuit breaker commonly experiences issues related to nuisance tripping, often stemming from incorrect overload settings or thermal magnetic trip unit malfunctions. Contamination on the breaker contacts leads to increased resistance, causing overheating and potential failure. Inspect the breaker's calibration and adjust settings to match the application's current requirements. Replace the breaker if contact degradation or internal component failure is evident, ensuring proper electrical protection and system uptime.
Technical specifications
The Allen-Bradley 140U-JD6D3-D12 is a 125 Amp, three-pole circuit breaker designed for industrial protection and use in a NEMA size 4 starter. It has an adjustable magnetic trip, a high interrupting rating, and is rated for specific horsepower at different voltages. It lacks internal control modules, offers IP2X protection when wired, and operates within a specified temperature range.
Our Repair Process for the
140U-JD6D3-D12
Our repair process for the Allen Bradley 140U-JD6D3-D12 molded case circuit breaker begins with a thorough inspection for nuisance tripping causes, including verification of overload settings and examination of the thermal magnetic trip unit. We meticulously clean breaker contacts to eliminate contamination that increases resistance and causes overheating. Calibration is checked and adjusted to meet specific application current requirements. If contact degradation or internal component failure is found, the breaker is replaced to guarantee proper electrical protection and maintain system uptime.
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.