Product Description
The Allen-Bradley 150-C251NBR SMC-3 is a 251A, 200-460V AC, 3-wire smart motor controller with an open enclosure, designed for 3-phase motors in applications like pumps, lifts, and conveyors. It features 24V AC/DC control voltage, 5 operation modes (current limit start, soft start, kick start, soft stop, coast-to-rest), Delta compatibility, and built-in protection against overload, phase reversal, and over-temperature. It also includes SCR/Run bypass functionality and single-phase line detection, along with a rotary switch for FLA setup, DIP switches, a reset/test button, and an LED display.
Is Your Device Showing These Signs?
The Allen Bradley 150-C251NBR commonly experiences issues such as coil failures due to overvoltage or thermal overload, resulting in contactor malfunction. Auxiliary contact blocks frequently degrade, causing signal errors in control circuits. Mechanical wear affects armature movement, leading to inconsistent operation and potential contact welding. Diagnose these problems through coil resistance testing, contact continuity checks, and visual inspection for physical damage. Replacement of worn components restores optimal performance and prevents system downtime.
Technical specifications
The Allen-Bradley 150-C251NBR SMC-3 is a 251A smart motor controller for 3-phase motors (200-460V AC) used in applications like pumps and conveyors. It offers multiple starting/stopping modes, Delta compatibility, comprehensive motor protection, bypass functionality, single-phase detection, and user-friendly configuration via switches and an LED display.
Our Repair Process for the
150-C251NBR
Our repair process for the Allen Bradley 150-C251NBR begins with a comprehensive diagnostic assessment, including coil resistance testing to identify overvoltage or thermal overload failures, contact continuity checks to detect degradation in auxiliary contact blocks, and a thorough visual inspection for physical damage and mechanical wear affecting armature movement. Upon identifying the specific issue, we proceed with the immediate replacement of all faulty components, ensuring that the contactor is restored to its optimal operational state. This proactive replacement strategy prevents future system downtime and guarantees consistent, reliable performance of the Allen Bradley 150-C251NBR.
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.