Product Description
The Allen-Bradley 140G-J0F4-D16 is a robust 250-amp, four-pole molded case circuit breaker designed for reliable protection in high-voltage (up to 1000V) electrical systems, featuring adjustable thermal-magnetic protection, a 100kA interrupting rating for fault handling, 8kV impulse voltage withstand, a 160-amp current range, and a durable construction with a mechanical/electrical life of 240/120 operations per hour, weighing 7.72 pounds.
Is Your Device Showing These Signs?
The Allen Bradley 140G-J0F4-D16 molded case circuit breaker commonly experiences issues such as nuisance tripping due to incorrect trip settings or thermal overload. Failed or degraded internal components, including the operating mechanism and solid-state trip unit, cause breaker malfunction. Contact erosion on the line and load side terminals leads to increased resistance and overheating. Inspect and correct improper wiring, ensure proper torque on terminal connections, and replace the breaker if internal components are faulty for optimal performance.
Technical specifications
The Allen-Bradley 140G-J0F4-D16 is a durable 250A, four-pole circuit breaker for high-voltage (up to 1000V) systems. It offers adjustable thermal-magnetic protection, a 100kA interrupting rating, 8kV impulse voltage withstand, a 160A current range, and a long mechanical/electrical lifespan. It weighs 7.72 pounds.
Our Repair Process for the
140G-J0F4-D16
Our repair process for the Allen Bradley 140G-J0F4-D16 molded case circuit breaker begins with a thorough inspection to identify the root cause of malfunction. This includes verifying trip settings, examining for signs of thermal overload, and checking for contact erosion on the line and load side terminals. We meticulously inspect internal components, such as the operating mechanism and solid-state trip unit, for failure or degradation. Improper wiring is corrected, and terminal connections are torqued to the correct specification. If internal components are found to be faulty, the breaker is replaced to guarantee optimal performance and prevent future issues.
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