Eaton F-Frame Rotary Lever Han...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$168.71

Eaton F-Frame Rotary Lever Handle Operating Mechanism, Circuit Breaker Accessory

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Model: 373D958G22

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

$168.71
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Eaton F-Frame Rotary Lever Handle Operating Mechanism, Circuit Breaker Accessory

The Eaton F-Frame Rotary Lever Handle Operating Mechanism is a circuit breaker accessory engineered for use with Eaton F-frame breakers, Frame size J-K. This rotary lever handle mechanism (G22) mounts to the left and provides external rotary operation of the breaker from the enclosure face; the operating handle itself is not included. Compact dimensions — 5 in width, 6.2 in length/depth, and 2.8 in height — allow the mechanism to fit within standard panelboard and switchgear enclosures, and it is offered with 6.5 in or 10 in shaft length options to match varying panel depths.

Key Features

  • Frame Compatibility: Designed for use with Eaton F-frame circuit breakers, Frame size J-K, for reliable mechanical fit and operation.
  • Compact Footprint: Product Width of 5 in, Product Length/Depth of 6.2 in, and Product Height of 2.8 in support installation within standard enclosure spacing.
  • Shaft Length Options: Available in 6.5 in or 10 in shaft lengths to accommodate different panel and enclosure depths.
  • Left Mounting Configuration: Configured for left-side mounting to the associated F-frame breaker.
  • Rotary Lever Handle Mechanism (G22): Enables external rotary operation of the breaker from outside the enclosure; handle is not included and must be ordered separately.

Technical Specifications

  • Product Width: 5 in
  • Shaft length: 6.5 in, 10 in
  • Mounting Method: Left
  • Used with: F-frame
  • Product Length/Depth: 6.2 in
  • Frame size: Frame J-K
  • Compliances: Contact Manufacturer
  • Product Height: 2.8 in
  • Product Type: Circuit Breaker
  • Special features: Rotary lever handle, handle not included, G22

Typical Applications

  • Operating Mechanisms for F-Frame Circuit Breakers
  • Panelboard and Switchgear Handle Assemblies
  • Commercial and Industrial Electrical Enclosures
  • Breaker Accessory Upgrades and Retrofits
  • External Rotary On/Off/Trip Operation of Enclosed Breakers

Why Eaton?

Eaton engineers this rotary lever handle operating mechanism specifically for compatibility with F-frame breakers, Frame size J-K, so installers can be confident in mechanical fit and consistent operation. With defined mounting configuration, shaft length options, and compact dimensions, this mechanism supports dependable, code-conscious operation of enclosed circuit breakers in commercial and industrial electrical systems. For compliance details specific to your application, contact the manufacturer as noted in the product specifications.

Manufacturer Resources

Product Specs

Product Width:
5 in
Shaft length:
6.5 in, 10 in
Mounting Method:
Left
Used with:
F-frame
Product Length/Depth:
6.2 in
Frame size:
Frame J-K
Compliances:
Contact Manufacturer
Product Height:
2.8 in
Product Type:
Circuit Breaker
Special features:
Rotary lever handle, handle not included, G22
Department:
Electrical
Product Group:
Circuit Breakers
Product Subgroup:
Electrical

Eaton 373D958G22 – Frequently Asked Questions

1) Does the Eaton 373D958G22 rotary operating mechanism come with the handle?
No. The G22 rotary lever handle mechanism ships as the operating mechanism only, and the handle has to be ordered separately. Plan for the handle and the shaft length when you build the order, or the breaker will have no way to be operated from outside the enclosure.
2) Which shaft length should I order for my enclosure depth, 6.5 in or 10 in?
Two shaft lengths are offered on this Eaton F-frame rotary mechanism: 6.5 in and 10 in. Measure from the breaker mounting plane to the inside face of the enclosure door, since the shaft has to span that distance to reach the external handle. Shallow panelboards typically take the 6.5 in shaft; deeper switchgear or gutter-space enclosures take the 10 in.
3) Can this rotary mechanism be mounted on the right side of the breaker?
No. The mechanism is configured for left-side mounting to the F-frame breaker. If your layout puts the operator on the right, this configuration will not line up, and you need a right-mount version instead.
4) Will the Eaton F-frame rotary mechanism fit inside my existing panelboard enclosure?
The body measures 5 in width, 6.2 in length/depth and 2.8 in height, so check that clearance around the breaker before you commit. Those dimensions are sized to sit within standard panelboard and switchgear spacing, but tight gutter space next to an existing breaker is the usual thing that stops the install.
5) What does a rotary lever handle mechanism do on an enclosed breaker?
It lets an electrician turn the breaker on, off, or reset a trip from the outside of the enclosure without opening the door. The mechanism mounts to the breaker inside, a shaft carries the motion out through the enclosure face, and an external handle (ordered separately) does the turning. That is the usual approach for commercial and industrial breaker enclosures where you want operation without exposing live parts.
6) Is the 373D958G22 usable as a retrofit on an already installed F-frame breaker?
Yes, it is intended for breaker accessory upgrades and retrofits as well as new assemblies. The limits are the same either way: the breaker must be an F-frame in the J-K frame size, the mechanism mounts on the left, and the shaft length you pick (6.5 in or 10 in) has to suit the existing enclosure depth.
7) What is the Eaton part number for this F-frame rotary lever handle mechanism?
Order it as Eaton 373D958G22. The G22 suffix identifies the rotary lever handle version, and it is the number to quote when matching an existing operator in a facility or specifying a replacement on a drawing.
How fast can I get the Eaton 373D958G22 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 373D958G22 come with a warranty?
Absolutely. The Eaton 373D958G22 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 373D958G22?
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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