Product Description
The Allen-Bradley 140G-KTI3-D40 is a durable, 400-amp molded case circuit breaker with an electronic LSIG trip unit, providing precise overload and short-circuit protection in demanding, high-capacity electrical applications with up to 1000V insulation and 8kV impulse voltage withstand, capable of 120 mechanical and 60 electrical operations per hour, and weighing 7.17 pounds for easy control panel installation.
Is Your Device Showing These Signs?
The Allen Bradley 140G-KTI3-D40 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 improper installation torque on the line and load side lug connections, leading to resistive heating and premature failure. Contamination from dust, moisture, or corrosive atmospheres degrades insulation resistance, causing dielectric breakdown and short circuits. Routine maintenance includes verifying trip unit calibration, inspecting for mechanical damage, and ensuring proper electrical continuity to mitigate these potential problems.
Technical specifications
The Allen-Bradley 140G-KTI3-D40 is a robust 400A molded case circuit breaker featuring an electronic LSIG trip unit for accurate overload and short-circuit protection in high-capacity electrical systems. It handles up to 1000V insulation and 8kV impulse voltage, supports 120 mechanical/60 electrical operations per hour, and weighs 7.17 pounds for easy installation.
Our Repair Process for the
140G-KTI3-D40
Our repair process for the Allen Bradley 140G-KTI3-D40 molded case circuit breaker begins with a thorough inspection for mechanical damage, contamination, and loose connections. We verify the trip unit calibration and adjust overload settings to the specified parameters. Electrical continuity is tested to identify any open circuits or shorts. Line and load side lug connections are tightened to the correct torque specifications to prevent resistive heating. If the thermal magnetic trip unit is malfunctioning, it is replaced with a calibrated unit. Contaminated breakers are cleaned and dried to restore insulation resistance. Following repairs, the breaker undergoes rigorous testing to ensure proper operation and adherence to original performance standards.
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.