Product Description
The Allen-Bradley 140U-H6C3-C70-B is a 3-pole, 70-Amp molded case circuit breaker (MCCB) designed to protect control panels with high interrupting capacity and electronic/magnetic-thermal protection. Approved globally by CCC, IEC, UL, and CSA, it offers magnetic and thermal protection (15-800 Amps) and electronic protection (10-3000 Amps). It features various mounting options, standard bolt-on end cap terminals, and a range of internal accessories (Auxiliary Contact, Shunt Trip, UV Relay, Alarm Contact, Trip Unit Contact, and combo options) and external accessories (phase barriers, terminal lugs, motor/flange operators, and more). This circuit breaker has a mechanical life of 25,000 operations (240/hour), a maximum ambient temperature rating of 40C (104F) without derating, a storage temperature range of -40 to 80C (-40 to 176F), and dimensions of 90 x 82.5 x 130 mm, weighing 1.2 kg (2.65 pounds).
Is Your Device Showing These Signs?
The Allen Bradley 140U-H6C3-C70-B molded case circuit breaker commonly experiences issues such as nuisance tripping due to incorrect overload settings or thermal magnetic calibration drift. We address contact erosion from repetitive high fault current interruptions, which degrades interrupting capacity. Failed or sluggish operating mechanisms are repaired, ensuring proper breaker actuation and reset functionality. Furthermore, we rectify issues with the shunt trip or undervoltage release modules, restoring remote tripping capabilities and voltage protection. Calibration verification and adjustment are performed to guarantee accurate current sensing and protection characteristics per the original specifications.
Technical specifications
The Allen-Bradley 140U-H6C3-C70-B is a globally approved, 3-pole, 70-Amp MCCB designed for control panel protection. It features high interrupting capacity, electronic/magnetic-thermal protection, various mounting options, standard terminals, and a range of internal and external accessories. It's rated for 25,000 operations, operates without derating up to 40C, and has specific storage temperature and dimensional specifications.
Our Repair Process for the
140U-H6C3-C70-B
Our repair process for the Allen Bradley 140U-H6C3-C70-B molded case circuit breaker begins with a thorough inspection to diagnose nuisance tripping, contact erosion, and operating mechanism failures. We correct incorrect overload settings and address thermal magnetic calibration drift to eliminate unwarranted tripping. Contact erosion is mitigated through refurbishment or component replacement, restoring the breaker's interrupting capacity. Failed or sluggish operating mechanisms are meticulously repaired, guaranteeing proper actuation and reset functionality. Shunt trip and undervoltage release modules are repaired or replaced, reinstating remote tripping capabilities and voltage protection. Finally, calibration verification and adjustment are performed, ensuring accurate current sensing and protection characteristics that adhere strictly to original specifications.
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.