Product Description
The Allen-Bradley 150-B135NCDC SMC Dialog Plus solid-state motor controller, rated at 135 Amps and 5-100 HP, operates at 460V AC with a 200-575V AC input range (50/60 Hz), features an open enclosure requiring heatsink fans, offers preset slow speed control, and uses a 100-240V AC control voltage, making it a reliable and adaptable solution for diverse industrial motor control applications.
Is Your Device Showing These Signs?
The Allen Bradley 150-B135NCDC solid-state reduced voltage starter commonly exhibits issues such as SCR failures leading to motor control malfunction, blown fuses due to excessive current draw, and communication errors on the control board affecting parameter configuration. Troubleshooting includes checking the thyristors for shorts or opens, verifying proper voltage input and output, and inspecting the control board for damaged components or loose connections. Firmware corruption can occur, necessitating a reflash. Overheating due to inadequate ventilation or excessive cycling is a frequent cause of component degradation.
Technical specifications
The Allen-Bradley 150-B135NCDC SMC Dialog Plus is a 135 Amp solid-state motor controller for 5-100 HP motors operating at 460V AC. It accepts a wide input voltage range (200-575V AC), requires heatsink fans due to its open enclosure, provides preset slow speed control, and uses a 100-240V AC control voltage, making it suitable for various industrial applications.
Our Repair Process for the
150-B135NCDC
Our repair process for the Allen Bradley 150-B135NCDC solid-state reduced voltage starter begins with a comprehensive inspection to identify SCR failures, blown fuses, and communication errors. Technicians check thyristors for shorts or opens, verify voltage input and output, and inspect the control board for damaged components and loose connections. If firmware corruption is present, the unit undergoes a reflash. Overheating issues are addressed through improved ventilation and cycle adjustments to prevent component degradation.
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.

















