Eaton Definite Purpose Contact...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$174.60
Eaton Definite Purpose Contactor Replacement Coil, 15-40A, 208-240V

Eaton Definite Purpose Contactor Replacement Coil, 15-40A, 208-240V

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Model: 9-3185-2

In Stock (leaves warehouse same day if ordered before 3pm ET)

$174.60
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Eaton Definite Purpose Contactor Replacement Coil, 15-40A, 208-240V

The Eaton Definite Purpose Contactor Replacement Coil is a genuine Eaton renewal part engineered for Eaton definite purpose contactors, rated 15-40A at 208-240V. Built in a compact 50 mm frame size, this coil restores reliable coil-switching performance in commercial and industrial motor control applications. As part of Eaton's Motor Control Renewal Parts/Accessories line, it helps maintain dependable, code-compliant operation of definite purpose contactor assemblies used with Eaton motor control equipment in panels, HVAC equipment, and machine control cabinets.

Key Features

  • Amperage Rating: 15-40A coil rating for definite purpose contactor switching applications.
  • Voltage Rating: 208-240 V AC coil voltage suited to standard motor control circuits.
  • Compact Frame Size: 50 mm size fits Eaton definite purpose contactor frames for a direct replacement fit.
  • Genuine Renewal Part: Designed as an Eaton Motor Control Renewal Parts/Accessories item for definite purpose contactors.
  • Compact Dimensions: 1.875 in width, 2.5 in length/depth, and 2.5 in height for drop-in replacement in existing contactor assemblies.
  • Definite Purpose Model: Definite purpose coil construction for consistent, reliable switching performance.
  • Renewal Parts Category: Classified by Eaton as a Renewal Parts/Accessories item for maintaining existing installed equipment.

Technical Specifications

  • Product Type: Coil
  • Used With: Definite Purpose Contactors
  • Voltage Rating: 208-240 V
  • Amperage Rating: 15-40A
  • Size: 50 mm
  • Product Width: 1.875 in
  • Product Length/Depth: 2.5 in
  • Product Height: 2.5 in
  • Model: Definite Purpose
  • Type: Renewal Parts/Accessories

Typical Applications

  • Motor Control Circuit Coil Replacement
  • Definite Purpose Contactor Maintenance and Repair
  • Commercial and Industrial Electrical Installations
  • HVAC and Motor Control Panel Servicing
  • Panelboard and Control Cabinet Upkeep
  • Preventive Maintenance on Eaton Motor Control Equipment

Why Eaton?

Eaton is a recognized leader in motor control and protection equipment, and this renewal coil is manufactured to fit Eaton definite purpose contactors precisely, supporting reliable, code-compliant electrical operation. The product is backed by Eaton Selling Policy 25-000, providing warranty coverage for one year from the date of installation or eighteen months from the date of shipment, whichever occurs first, giving electrical professionals confidence in long-term performance and supply chain continuity for critical motor control maintenance.

Manufacturer Resources

Product Specs

Product Width:
1.875 in
Used with:
Used with Definite Purpose Contactors
Voltage Rating:
208-240V
Amperage Rating:
15-40A
Product Size:
50 mm
Product Length/Depth:
2.5 in
Product Type:
Coil
Product Height:
2.5 in
Product Model:
Definite purpose
Certifications:
Not Applicable
Department:
Electrical
Series:
Definite Purpose
Product Group:
Wiring Devices

Eaton 9-3185-2 – Frequently Asked Questions

1) My HVAC contactor buzzes and won't pull in - do I replace the coil or the whole contactor?
A chattering or dead coil with clean, unpitted contacts is a coil replacement, and that is exactly what the Eaton 9-3185-2 is for - a genuine Eaton renewal part for definite purpose contactors rated 15-40A. If the power contacts are welded, burned, or badly pitted, replace the contactor instead; a new coil will not fix a damaged contact set.
2) How do I order the right Eaton definite purpose coil - what number do I give?
Order by Eaton part number 9-3185-2. That number covers the 50 mm frame, 208-240V, 15-40A definite purpose coil. Eaton builds this coil in several voltages, so the part number is what separates the 208-240V version from the 24V or 120V ones; quoting the amp range alone is not enough.
3) What is the difference between a definite purpose contactor coil and a NEMA starter coil?
A definite purpose coil such as the Eaton 9-3185-2 is sized to a specific definite purpose contactor frame - here a 50 mm frame, 1.875 in wide by 2.5 in deep by 2.5 in high - and is the renewal part for that contactor family, common in HVAC and packaged equipment. A NEMA coil such as the Square D Type S 31041400 series is sized to a NEMA starter rating class, in that case size 00, 0, or 1. Selection follows different systems: frame size for the definite purpose coil, NEMA size for the starter coil.
4) Does the Eaton 9-3185-2 definite purpose coil carry a UL listing or other certification?
The Eaton 9-3185-2 is catalogued as a renewal part for existing installed equipment, and no agency listing is carried on the part itself. Its role is to restore an already-approved Eaton definite purpose contactor assembly to service, with the ratings of that assembly unchanged.
5) Is this coil suitable for stocking as a maintenance spare across an HVAC fleet?
That is what it is built for. The 208-240V, 15-40A definite purpose coil covers the most common control voltage on packaged rooftop and condensing unit contactors, so one part number backs up a large share of Eaton definite purpose contactors in a facility. Confirm the units in your fleet use 50 mm Eaton frames before standardizing on it.
How fast can I get the Eaton 9-3185-2 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton 9-3185-2 come with a warranty?
Absolutely. The Eaton 9-3185-2 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton 9-3185-2?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Eaton 9-3185-2 from ZenSupply?
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