Product Description
The Allen-Bradley 140U-I3C3-C20 is a 140G molded case circuit breaker designed for control panel protection, safeguarding devices from short circuits and overcurrents. This I-Frame breaker, compliant with UL489, CSA22.2 (No.5), and IEC 60947-2 standards and carrying CCC, UL, CE, and CSA certifications, offers high breaking and interrupting capacities. It features field- and factory-installable accessories and provides adjustable magnetic/thermal, fixed thermal/magnetic, or adjustable electronic protection. The breaker has a mechanical lifespan of 25,000 total operations (240/hour) and an electrical lifespan of 8,000 operations (120/hour at 415VAC). Housed in a supporting case with the breaker, operator, and optional accessories, it includes features like trip indication contacts, external rotary operator, auxiliary contacts, and a flex cable operator, along with on/off switches and alarm trip test buttons. It operates between -13 to 158F (-25 to 70C), stores between -40 to 158F (-40 to 70C), and maintains full performance up to 104F (40C) ambient temperature. Its dimensions are 105 x 70 x 150 mm (4.13 x 2.76 x 5.9 inches) and it weighs approximately 3.7 kg (1.7 lbs).
Is Your Device Showing These Signs?
The Allen Bradley 140U-I3C3-C20 molded case circuit breaker commonly experiences issues such as nuisance tripping due to incorrect overload settings or thermal magnetic calibration drift. Failed instantaneous trip mechanisms and contact erosion from repetitive high fault current interruptions are frequent problems. We address communication failures related to the breaker's internal monitoring system, often caused by damaged communication modules or wiring. Routine maintenance includes inspecting and replacing worn or damaged components to ensure proper operation and prevent premature failure of the circuit breaker.
Technical specifications
The Allen-Bradley 140U-I3C3-C20 is a certified 140G molded case circuit breaker designed for control panel protection against short circuits and overcurrents. It boasts high breaking capacity, adjustable protection options, and a long mechanical/electrical lifespan. It also features various accessories, trip indication, and operates within a wide temperature range, all within compact dimensions.
Our Repair Process for the
140U-I3C3-C20
Our repair process for the Allen Bradley 140U-I3C3-C20 molded case circuit breaker begins with a thorough inspection to diagnose the specific failure, including verification of overload settings and calibration of the thermal magnetic trip mechanism. We meticulously examine the instantaneous trip mechanism and contacts for signs of erosion or damage. Communication failures are addressed through inspection and repair or replacement of faulty communication modules and wiring. All worn or damaged components are replaced with new parts, and the breaker undergoes rigorous testing to confirm proper operation and adherence to original performance specifications before it is returned.
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.