Product Description
The Allen-Bradley/Rockwell Automation 140U-JTD3-D17 circuit breaker, designed for industrial applications, protects motors, conduits, and circuits from damaging abnormal currents using both adjustable magnetic and fixed thermal trip mechanisms. It operates at 50 Hz with a voltage rating of 200-575V and a current rating of 2500 Amps. The thermal interrupting rating is 175 Amps, while the magnetic interrupting rating ranges from 875 to 1750 Amps. Performance is optimal at 100% power up to 1000 meters altitude and 0-40C ambient temperature; derating is required at 2800 meters and 75C. Installation requires protection from contaminants and use of 75C-rated wiring, ensuring compatibility between the breaker's specifications and the protected equipment for safe operation.
Is Your Device Showing These Signs?
The Allen Bradley 140U-JTD3-D17 molded case circuit breaker commonly experiences issues such as nuisance tripping due to incorrect overload settings or thermal magnetic calibration drift. Failed or damaged trip units are a frequent problem, preventing proper overcurrent protection. Contamination or corrosion on the line and load side terminals causes connection failures and overheating. Internal component degradation, including the operating mechanism and contacts, results in breaker failure and requires replacement or refurbishment. Verify proper installation and adherence to specified torque values to mitigate these issues.
Technical specifications
The Allen-Bradley 140U-JTD3-D17 circuit breaker is an industrial-grade device that safeguards motors, conduits, and circuits from overcurrents using adjustable magnetic and fixed thermal trips. It operates at 50Hz, 200-575V, and 2500A, with thermal and magnetic interrupting ratings of 175A and 875-1750A respectively. Optimal performance is achieved at lower altitudes and temperatures, requiring derating at higher altitudes and temperatures. Proper installation involves contaminant protection and 75C-rated wiring to ensure compatibility and safe operation.
Our Repair Process for the
140U-JTD3-D17
Our repair process for the Allen Bradley 140U-JTD3-D17 molded case circuit breaker begins with a thorough inspection to identify nuisance tripping, failed trip units, terminal contamination, corrosion, and internal component degradation. We verify proper installation and torque values, then address overload settings and thermal magnetic calibration. Failed trip units are replaced or refurbished to restore overcurrent protection. Contamination and corrosion are removed from line and load side terminals to ensure secure connections and prevent overheating. Internal components, including the operating mechanism and contacts, are either repaired or replaced to eliminate breaker failure.
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.