Eaton Rotary Lever Handle Mech...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$658.64
Eaton Rotary Lever Handle Mechanism, Frame J-K Circuit Breaker Accessory

Eaton Rotary Lever Handle Mechanism, Frame J-K Circuit Breaker Accessory

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Model: 458D493G04

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

$658.64
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Eaton Rotary Lever Handle Mechanism, Frame J-K Circuit Breaker Accessory

The Eaton Rotary Lever Handle Mechanism is a molded case circuit breaker accessory engineered for use with LA-, HLA-, LC-, and HLC-Frame breakers in the Frame J-K size range. Featuring a rotary lever handle design (special feature designation G04), this mechanism allows external, door-mounted operation of the breaker without opening the enclosure. It is available with 6.5 in or 10 in shaft lengths to accommodate different panel and enclosure depths, and is configured for left mounting. Compact dimensions of 5 in width by 4 in depth by 11 in height make it suitable for integration into standard switchgear and panelboard assemblies.

Key Features

  • Frame Compatibility: Designed for use with LA-, HLA-, LC-, HLC-Frame molded case circuit breakers, Frame J-K, ensuring a proper mechanical fit for external handle operation.
  • Shaft Length Options: Offered in 6.5 in and 10 in shaft lengths, allowing installers to match the mechanism to the enclosure or panel depth on the job.
  • Rotary Lever Handle: Special feature G04 rotary lever handle design provides smooth, reliable manual operation of the breaker from outside the enclosure.
  • Left Mounting Method: Configured for left-side mounting, simplifying installation into compatible switchgear and panelboard layouts.
  • Compact Footprint: Measures 5 in wide by 4 in deep by 11 in high, sized to fit within standard breaker accessory mounting space.
  • Renewal Parts Support: Referenced in Eaton's Volume 12 Aftermarket, Renewal Parts and Life Extension Solutions documentation, supporting long-term maintenance of existing breaker installations.

Technical Specifications

  • Product Width: 5 in
  • Product Length/Depth: 4 in
  • Product Height: 11 in
  • Shaft length: 6.5 in, 10 in
  • Mounting Method: Left
  • Used with: LA-, HLA-, LC-, HLC-Frame
  • Frame size: Frame J-K
  • Type: Handle mechanism
  • Special features: Rotary lever handle, G04
  • Warranty: Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
  • Product Type: Circuit Breaker
  • Department: Electrical

Typical Applications

  • Molded Case Circuit Breaker Operation and Control
  • Panelboard and Switchgear Assemblies
  • Industrial and Commercial Electrical Distribution Equipment
  • Retrofit and Replacement of Existing Breaker Handle Mechanisms
  • Renewal Parts and Life Extension Programs for Eaton Breaker Installations

Why Eaton?

Eaton engineers its molded case circuit breaker accessories, including this rotary lever handle mechanism, to precisely match the frame and mounting requirements of LA-, HLA-, LC-, and HLC-Frame breakers, helping ensure dependable external operation over the life of the installation. Backed by Eaton's published Selling Policy 25-000 warranty terms and supported through Eaton's Aftermarket Renewal Parts and Life Extension program, this handle mechanism is built to keep existing electrical distribution equipment running safely and reliably for professional electrical work.

Manufacturer Resources

Product Specs

Product Width:
5 in
Shaft length:
6.5 in, 10 in
Mounting Method:
Left
Used with:
LA-, HLA-, LC-, HLC-Frame
Product Length/Depth:
4 in
Frame size:
Frame J-K
Compliances:
Contact Manufacturer
Product Height:
11 in
Product Type:
Breaker Handle Operator
Special features:
Rotary lever handle, G04
Department:
Electrical
Configuration:
Rotary Lever Handle
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers
Product Length:
4 in
Product Weight:
1.6 lb

Eaton 458D493G04 – Frequently Asked Questions

1) Which Eaton breaker frames does the 458D493G04 rotary handle mechanism fit?
The 458D493G04 rotary lever handle mechanism is built for Eaton LA-, HLA-, LC- and HLC-Frame molded case breakers in the Frame J-K size range. If the breaker in your enclosure is outside that frame group, this mechanism will not mate to it mechanically, so confirm the frame letter stamped on the breaker before ordering.
2) How do I pick between the 6.5 in and 10 in shaft on this Eaton handle mechanism?
Shaft length has to cover the distance from the breaker's operating mechanism back to the enclosure door, so the deeper the enclosure the longer the shaft. Eaton offers this rotary lever handle in 6.5 in and 10 in shaft lengths. Measure your panel or enclosure depth before you order; a shaft that is too short simply will not reach the door.
3) Can the operator turn the breaker on and off without opening the enclosure door?
That is the whole point of it. The G04 rotary lever handle mechanism mounts through the door so the breaker is operated from outside the enclosure, which keeps the door closed during normal switching on panelboard and switchgear assemblies.
4) Is this Eaton rotary handle mechanism left or right mounted?
Left mounting only. The 458D493G04 is configured for left-side mounting to the breaker, so if your switchgear layout or existing cutout is set up for the opposite side, this is not the part to order.
5) How much space do I need inside the enclosure for the Eaton G04 handle mechanism?
Plan on a footprint of 5 in wide by 4 in deep by 11 in high for the mechanism itself, plus whatever the shaft run adds back to the door. The 11 in height is the number that usually decides it, so check clearance above and below the breaker before you commit the space.
6) Can I use this to replace a failed handle mechanism on an existing Eaton breaker installation?
Yes, that is one of its main uses. Eaton catalogs the 458D493G04 through its Aftermarket, Renewal Parts and Life Extension program, so it is intended for retrofit and replacement of existing handle mechanisms on LA-, HLA-, LC- and HLC-Frame breakers rather than new gear only. Match the frame, the left-hand mounting, and the shaft length of the unit coming out.
7) What is the G04 designation on this Eaton part number?
G04 is Eaton's special feature suffix identifying the rotary lever handle configuration on part 458D493G04. Other G-suffixes on the same base number denote different handle or mounting arrangements, so quote the full number including the suffix when you order.
8) Does the Eaton handle mechanism come with the circuit breaker?
No. The 458D493G04 is a breaker accessory sold on its own, a handle mechanism only. You supply the LA-, HLA-, LC- or HLC-Frame breaker and the enclosure it mounts in.
How fast can I get the Eaton 458D493G04 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 458D493G04 come with a warranty?
Absolutely. The Eaton 458D493G04 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 458D493G04?
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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