Product Description
The Allen-Bradley 150-C251NCD, part of the SMC-3 series, is a compact, solid-state, 3-phase motor controller offering advantages like integral bypass, overload protection, and motor diagnostics. Suitable for applications like pumps and conveyors, it features Soft Start, Current Limit Start, KickStart, and Soft Stop modes for versatile speed control, along with simple start/stop functionality. This 251A, open-enclosure controller accepts 200-600V AC input at 50-60 Hz and uses a 100-240V AC control voltage. Compatible with Delta-connected motors and capable of operating in extreme temperatures (32-140F operating, -40-185F storage), its lifespan is reduced at maximum temperature. Avoid corrosive environments and construction areas for storage.
Is Your Device Showing These Signs?
The Allen Bradley 150-C251NCD commonly experiences issues related to failed or degraded overload relays, resulting in motor protection faults and nuisance tripping. Contactor coil burnout is a frequent problem, leading to operational failure and preventing motor starts. Inspect auxiliary contact blocks for wear or damage, as these can cause control circuit malfunctions. Power pole degradation due to arcing or overheating is a known issue; replace the entire contactor if severe. Ensure proper thermal unit selection and calibration to prevent premature failures and maintain optimal motor performance.
Technical specifications
The Allen-Bradley 150-C251NCD is a compact, solid-state 3-phase motor controller (SMC-3 series) with integral bypass, overload protection, and motor diagnostics. It's suitable for pumps and conveyors, offering Soft Start, Current Limit Start, KickStart, and Soft Stop modes, plus simple start/stop. It handles 200-600V AC input, uses 100-240V AC control voltage, and is compatible with Delta-connected motors. It operates in a wide temperature range, but lifespan is reduced at maximum temperature. Storage should avoid corrosive environments and construction areas.
Our Repair Process for the
150-C251NCD
Our repair process for the Allen Bradley 150-C251NCD begins with a thorough inspection of the overload relay for any signs of failure or degradation; replace the relay if faults are detected. Next, examine the contactor coil for burnout, replacing it to restore operational functionality and motor starts. Auxiliary contact blocks are inspected for wear or damage, and replacements are made to correct control circuit malfunctions. Power poles are assessed for degradation from arcing or overheating; severe cases mandate complete contactor replacement. Finally, verify proper thermal unit selection and calibration to prevent future failures and guarantee optimal motor performance.
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.