Eaton Size 00 Series A1 Renewa...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$452.74
Eaton Size 00 Series A1 Renewal Part for Contactors and Starters, 480V

Eaton Size 00 Series A1 Renewal Part for Contactors and Starters, 480V

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Model: 9-1945-3

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

$452.74
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Eaton Size 00 Series A1 Renewal Part for Contactors and Starters, 480V

Keep Size 00, Series A1 non-reversing contactors and starters running with this genuine Eaton renewal part, rated for 480V, 60 Hz operation. Built to Eaton's exacting fit and function standards, this compact component measures 2.4 in wide, 2.1 in deep, and 2.1 in high, making it a precise drop-in replacement for maintenance and life-extension programs on Eaton motor control equipment. As a factory-specified renewal part, it restores original performance without the guesswork of aftermarket substitutes.

Key Features

  • Size 00 / Series A1 Fit: Engineered specifically for Eaton Size 00, Series A1 contactors and starters.
  • Non-Reversing Application: Intended for non-reversing contactors and starters only; for Size 00 reversing applications, Eaton specifies selecting parts from the Size 0 product line.
  • Voltage Rating: Rated 480V at 60 Hz for reliable operation in standard motor control circuits.
  • Compact Dimensions: Measures 2.4 in (width) x 2.1 in (length/depth) x 2.1 in (height) for a precise fit within existing enclosures.
  • Renewal Parts/Accessories Type: Classified as a genuine Eaton renewal part, designed to extend the service life of existing contactor and starter installations.
  • OEM-Matched Construction: Manufactured by Eaton to original specifications, ensuring consistent fit, form, and function with compatible Size 00, Series A1 units.

Technical Specifications

  • Department: Electrical
  • Product Width: 2.4 in
  • Product Length/Depth: 2.1 in
  • Product Height: 2.1 in
  • Type: Renewal Parts/Accessories
  • Certifications: Not Applicable

Typical Applications

  • Maintenance and Repair of Eaton Size 00 Contactors and Starters
  • Motor Control Panel Refurbishment
  • Industrial and Commercial Motor Control Centers
  • Life-Extension Programs for Existing Eaton Equipment
  • Replacement Parts Inventory for Electrical Maintenance Teams

Why Eaton?

Eaton renewal parts are built to the same specifications as the original equipment, giving maintenance teams a dependable path to restoring Size 00, Series A1 contactors and starters to full working condition. Choosing a genuine Eaton renewal part helps ensure proper fit, consistent 480V/60 Hz performance, and continued reliability of critical motor control equipment.

Manufacturer Resources

Product Specs

Department:
Electrical
Product Length/Depth:
2.1 in
Product Height:
2.1 in
Product Width:
2.4 in
Certifications:
Not Applicable
Product Type:
Motor Starter Accessory
Configuration:
Size 00
Series:
A1
Voltage Rating:
480V
Product Group:
Motor Control & Automation
Product Subgroup:
Motor Starters & Contactors
Product Weight:
0.15 lb
Product Length:
2.1 in

Eaton 9-1945-3 – Frequently Asked Questions

1) Will this Eaton renewal part fit a Size 00 reversing starter?
No. The 9-1945 renewal part is for Size 00, Series A1 non-reversing contactors and starters only. Eaton specifies that Size 00 reversing applications take parts from the Size 0 product line instead, so if the starter you are servicing reverses, order from Size 0 rather than this part.
2) What do I need to check on my Eaton starter before ordering the 9-1945 renewal part?
Three things: the frame size must be Size 00, the series must be A1, and the coil circuit must be 480V 60 Hz. This part is built to those exact ratings. A Size 0 or Size 1 unit, or a different series letter, takes a different renewal part.
3) Can I use this Eaton renewal part on a 240V or 600V motor control circuit?
No. The 9-1945 Size 00 Series A1 renewal part is rated 480V at 60 Hz. Match the part to the voltage of the circuit it is serving; a 240V or 600V Size 00 unit needs the renewal part built for that rating.
4) What is the difference between Eaton 9-1945-2 and 9-1945-3?
They are the two configuration options on the 9-1945 Size 00 Series A1 renewal part, ordered as option 2 (MPN 9-1945-2) and option 3 (MPN 9-1945-3). Both carry the same Size 00, Series A1, 480V rating, so pick the configuration number that matches the part callout on your existing starter.
5) How much room does the Eaton Size 00 A1 renewal part take up inside an existing enclosure?
It measures 2.4 in wide, 2.1 in deep, and 2.1 in high, so it drops into the same footprint as the component it replaces in a Size 00 starter. No enclosure modification is involved when the original unit is Size 00 Series A1.
6) Is this a genuine Eaton part or an aftermarket replacement for Size 00 starters?
It is an Eaton factory renewal part, made to the original equipment specification for Size 00 Series A1 contactors and starters. For maintenance teams running MCC refurbishment or life-extension programs on existing Eaton gear, that means fit and function match the original component rather than an aftermarket approximation.
How fast can I get the Eaton 9-1945-3 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 9-1945-3 come with a warranty?
Absolutely. The Eaton 9-1945-3 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 9-1945-3?
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
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