Product Description
Allen-Bradley's 150-B500NBRC SMC Dialog Plus motor controller, a reliable and high-performing solid-state device, operates on 460VAC and handles 500 amps continuous current, supporting 4-400 HP motors in 3-phase systems with 200-460VAC input at 50/60Hz; its open design simplifies installation and maintenance, requiring heatsink fans for cooling, and features a preset slow speed function and 24VAC/DC control voltage for enhanced application flexibility.
Is Your Device Showing These Signs?
The Allen Bradley 150-B500NBRC commonly experiences issues such as nuisance tripping due to incorrect overload settings or faulty trip mechanisms. Contactor failure, manifested by coil burnout or contact welding, requires immediate attention. Diagnose and rectify communication faults within the SMC-Flex smart motor controller network, addressing potential issues with the EtherNet/IP adapter. Resolve parameter configuration errors that cause erratic motor behavior or prevent proper operation. Inspect and replace damaged or worn components, including the housing, buttons, and terminal blocks, to maintain optimal performance and safety.
Technical specifications
The Allen-Bradley 150-B500NBRC SMC Dialog Plus is a 460VAC, 500-amp solid-state motor controller for 4-400 HP, 3-phase motors. It features an open design for easy installation/maintenance, requires heatsink fans for cooling, and offers a preset slow speed function and 24VAC/DC control voltage for increased flexibility.
Our Repair Process for the
150-B500NBRC
Our repair process for the Allen Bradley 150-B500NBRC begins with a thorough diagnosis to pinpoint the root cause of the malfunction, whether it be nuisance tripping, contactor failure, communication faults, or parameter configuration errors. Overload settings are verified and adjusted, or the trip mechanism is replaced if faulty. Contactor issues are addressed by replacing burnt-out coils or resolving welded contacts. Communication faults within the SMC-Flex network are rectified by troubleshooting and repairing the EtherNet/IP adapter. Parameter configurations are corrected to ensure proper motor operation. Finally, all damaged or worn components, including the housing, buttons, and terminal blocks, are replaced to restore the unit to optimal condition.
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