Product Description
The Allen-Bradley 140G-JTC4-C40 is a dependable 250A, four-pole molded case circuit breaker (J-frame) offering reliable overload protection via fixed thermal-magnetic mechanisms set at 40A, suitable for industrial applications requiring precise control, high-voltage (1000V insulation, 8kV impulse withstand), and frequent on/off cycling (240 mechanical/120 electrical operations per hour) while weighing 7.72 lbs.
Is Your Device Showing These Signs?
The Allen Bradley 140G-JTC4-C40 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 attributed to high fault current events or repetitive switching operations. Calibration drift within the solid-state trip unit necessitates recalibration or replacement to ensure accurate protection. Furthermore, inspect the breaker for mechanical damage to the operating mechanism, including broken handles or impaired trip springs, which prevent proper operation. Resolve these issues through proper setting adjustments, component replacement, and adherence to recommended maintenance schedules to maintain optimal performance and protection.
Technical specifications
The Allen-Bradley 140G-JTC4-C40 is a robust 250A, four-pole circuit breaker designed for industrial use. It provides overload protection with fixed 40A thermal-magnetic settings, handles high voltage, and supports frequent switching. It weighs 7.72 lbs.
Our Repair Process for the
140G-JTC4-C40
Our repair process for the Allen Bradley 140G-JTC4-C40 molded case circuit breaker begins with a thorough inspection to identify the root cause of the malfunction, focusing on common issues such as nuisance tripping, contact erosion, calibration drift, and mechanical damage. Adjust overload settings to the correct specifications to eliminate nuisance tripping. Replace the thermal magnetic trip unit if a malfunction is detected. Address contact erosion by replacing affected components following high fault current events or repetitive switching operations. Recalibrate or replace the solid-state trip unit to correct calibration drift and ensure accurate protection. Repair or replace any damaged components of the operating mechanism, including handles and trip springs, to restore proper operation. Adherence to recommended maintenance schedules is mandatory to maintain optimal performance and protection.
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.