Product Description
The Allen-Bradley 140G-NS5K4-E12 is a robust and reliable 1200A, 4-pole molded case circuit breaker with a 50kA interrupting capacity, NS frame, electronic LSIG protection, 1000V insulation voltage, and 8kV impulse withstand, designed for demanding industrial applications requiring high electrical load management and safety, with a weight of 27.56 pounds and a mechanical/electrical endurance of 60 operations per hour.
Is Your Device Showing These Signs?
The Allen Bradley 140G-NS5K4-E12 molded case circuit breaker commonly experiences issues such as nuisance tripping due to incorrect overload settings or thermal magnetic trip unit malfunction. Field failures often stem from contact erosion caused by repetitive high fault current interruptions or improper torque on terminal connections leading to increased resistance and thermal damage. Calibration drift within the electronic trip unit necessitates verification and adjustment to ensure accurate protection. Damage to the operating mechanism, including the handle and internal linkages, prevents proper breaker operation and requires component replacement.
Technical specifications
The Allen-Bradley 140G-NS5K4-E12 is a heavy-duty 1200A circuit breaker designed for industrial use. It features 4 poles, a 50kA interrupting capacity, electronic LSIG protection, high insulation and impulse withstand, and can handle high electrical loads safely. It weighs 27.56 pounds and is rated for 60 operations per hour.
Our Repair Process for the
140G-NS5K4-E12
Our repair process for the Allen Bradley 140G-NS5K4-E12 molded case circuit breaker begins with a comprehensive inspection to identify nuisance tripping causes, thermal magnetic trip unit malfunctions, contact erosion, terminal connection integrity, calibration drift, and operating mechanism damage. We verify and adjust overload settings and address thermal magnetic trip unit issues. Contact erosion is rectified through contact refurbishment or replacement. Terminal connections are inspected, cleaned, and properly torqued to eliminate resistance and thermal damage. Calibration of the electronic trip unit is performed to guarantee accurate protection. Damaged operating mechanism components, including the handle and internal linkages, are replaced to restore proper breaker operation.
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.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY