Eaton Through-the-Door Rotary ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$259.56

Eaton Through-the-Door Rotary Handle Mechanism, J-Frame, Series C

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Model: HM3R12

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

$259.56
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Eaton Through-the-Door Rotary Handle Mechanism, J-Frame, Series C

The Eaton Through-the-Door Rotary Handle Mechanism is a circuit breaker accessory designed for use with Eaton Series C molded case circuit breakers on the Frame J platform. This handle mechanism allows external, through-the-door operation of the breaker without opening the enclosure door, supporting safe and convenient switching for panelboard and switchgear applications. Built with a 24 in shaft length and a rotary handle type, this accessory is engineered for reliable, code-compliant operation in commercial and industrial electrical systems.

Key Features

  • Through-the-Door Design: Through-the-door handle mechanism allows breaker operation from outside the enclosure without exposing internal components.
  • Rotary Handle Type: Rotary handle operation provides smooth, positive breaker switching for on-site personnel.
  • Shaft Length: 24 in shaft length accommodates standard enclosure depths for through-the-door mounting.
  • Compatible Frame Size: Designed for use with Frame J, Series C molded case circuit breakers.
  • Product Dimensions: Measures 28.5 in in width, 9 in in height, and 4.5 in in length/depth for accurate enclosure fit verification.
  • Series C Compatibility: Engineered to work with Eaton Series C circuit breaker platforms for consistent performance.

Technical Specifications

  • Product Width: 28.5 in
  • Shaft length: 24 in
  • Used with: J-frame
  • Series: Series C
  • Product Length/Depth: 4.5 in
  • Frame size: Frame J
  • Product Height: 9 in
  • Type: Through-the-door handle mechanism
  • Handle type: Rotary

Typical Applications

  • Commercial and Industrial Electrical Panelboards
  • Switchgear and Enclosure Handle Operation
  • Molded Case Circuit Breaker Retrofits
  • Panelboard and Load Center Accessory Upgrades
  • Renovation and New Construction Electrical Distribution

Why Eaton?

Eaton engineers circuit breaker accessories like this Through-the-Door Rotary Handle Mechanism to integrate seamlessly with Series C, Frame J molded case circuit breakers, supporting safe and reliable panel operation. Backed by Eaton's manufacturing standards, this handle mechanism is built for dependable, code-compliant performance in demanding electrical distribution environments.

Manufacturer Resources

Product Specs

Series:
Series C
Department:
Electrical
Product Type:
Handle Mechanism
Handle type:
Rotary
Compliances:
Contact Manufacturer
Configuration:
Through-the-Door
Product Group:
Wiring Devices

Eaton HM3R12 – Frequently Asked Questions

How fast can I get the Eaton HM3R12 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 HM3R12 come with a warranty?
Absolutely. The Eaton HM3R12 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 HM3R12?
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 HM3R12 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.