Product Description
The Allen-Bradley/Rockwell Automation 100-D140X11 is a non-reversing Bulletin 100-D series AC contactor featuring 3 normally open main contacts, 1 normally open auxiliary contact, and 1 normally closed auxiliary contact, with the option to add more auxiliary contacts for complex applications. Powered by a 48VAC 60Hz coil with Class B insulation, this compact and efficient contactor is designed for standard AC motor systems where voltage reversal is not required. It offers replaceable components and environmentally conscious materials, but its low ingress protection necessitates protective enclosures in many applications, especially outdoors or in hazardous environments.
Is Your Device Showing These Signs?
The Allen Bradley 100-D140X11 commonly experiences issues such as coil failure due to overvoltage or thermal overload, resulting in contactor malfunction. Expect problems with the auxiliary contacts, including contact wear and contamination, leading to signal errors in control circuits. Diagnose and rectify mechanical failures in the armature assembly, preventing proper contact closure. Address issues with the overload relay, such as nuisance tripping or failure to protect the motor from overcurrent conditions. Replace worn or damaged power poles to maintain proper current carrying capacity and prevent arcing.
Technical specifications
The Allen-Bradley 100-D140X11 is a non-reversing AC contactor (Bulletin 100-D series) with 3 normally open main contacts, 1 normally open and 1 normally closed auxiliary contact (expandable). It uses a 48VAC 60Hz coil with Class B insulation and is suitable for standard AC motor systems not requiring voltage reversal. While offering replaceable components and eco-friendly materials, its low ingress protection requires protective enclosures in harsh environments.
Our Repair Process for the
100-D140X11
Our repair process for the Allen Bradley 100-D140X11 begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the malfunction, focusing on common failure points such as coil integrity, auxiliary contact condition, armature assembly mechanics, and overload relay functionality. Technicians address coil failures by replacing the coil, ensuring proper voltage and thermal protection are in place. Auxiliary contacts are meticulously cleaned, repaired, or replaced to eliminate signal errors. Mechanical failures in the armature assembly are rectified through precise adjustments or component replacements, guaranteeing proper contact closure. Overload relays are calibrated or replaced to prevent nuisance tripping and ensure reliable motor protection. Power poles exhibiting wear or damage are replaced to maintain current carrying capacity and prevent arcing, restoring the contactor to optimal operational 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.

















