Eaton Series G LG-Frame Flex S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,231.26
Eaton Series G LG-Frame Flex Shaft Flange-Mounted Handle Mechanism

Eaton Series G LG-Frame Flex Shaft Flange-Mounted Handle Mechanism

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Model: LHMFS04

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

$1,231.26
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Eaton Series G LG-Frame Flex Shaft Flange-Mounted Handle Mechanism

The Eaton Series G LG-Frame Flex Shaft Flange-Mounted Handle Mechanism is a molded case circuit breaker accessory designed to provide remote, panel-mounted operation of LG-frame circuit breakers. This flex shaft flange-mounted handle mechanism connects to the breaker via a 4 ft shaft length, allowing safe operator access to breaker ON/OFF control from outside the enclosure. Built to Eaton's Series G platform specifications, this accessory measures 19 in in width, 20 in in length/depth, and 2.5 in in height, making it a compact addition to control panel and switchgear installations.

Key Features

  • Shaft Length: 4 ft flexible shaft for remote handle-to-breaker linkage across panel depth.
  • Mounting Style: Flange-mounted design for secure attachment to enclosure or panel surfaces.
  • Compatibility: Engineered for use with Eaton LG-frame molded case circuit breakers.
  • Series: Part of the Eaton Series G circuit breaker accessory line.
  • Type: Flex shaft flange-mounted handle mechanism for external breaker operation.
  • Compact Footprint: 19 in width x 20 in length/depth x 2.5 in height for efficient panel space use.

Technical Specifications

  • Type: Flex shaft flange-mounted handle mechanism
  • Series: Series G
  • Used With: LG-frame circuit breakers
  • Shaft Length: 4 ft
  • Product Width: 19 in
  • Product Length/Depth: 20 in
  • Product Height: 2.5 in
  • 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.

Typical Applications

  • Commercial and Industrial Switchgear Panels
  • Molded Case Circuit Breaker Remote Operation
  • Control Panel and Enclosure Installations
  • LG-Frame Breaker Retrofits and Upgrades
  • Panelboard and Load Center Accessory Integration

Why Eaton?

Eaton engineers its Series G circuit breaker accessories, including this flex shaft flange-mounted handle mechanism, to deliver dependable, code-compliant operation for LG-frame molded case circuit breakers in demanding commercial and industrial environments. Backed by Eaton's standard selling policy warranty, this handle mechanism supports safe, reliable remote breaker control for professional electrical installations.

Manufacturer Resources

Product Specs

Product Width:
19 in
Shaft Length:
4 ft
Used With:
LG-frame
Series:
Series G
Product Length/Depth:
20 in
Compliances:
Contact Manufacturer
Product Height:
2.5 in
Product Type:
Breaker Handle Operator
Department:
Electrical
Configuration:
Flex Shaft Flange-Mounted
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers
Product Length:
20 in
Product Weight:
7.2 lb

Eaton LHMFS04 – Frequently Asked Questions

1) Will the Eaton LHMFS04 handle mechanism work on any molded case breaker, or only certain frames?
The LHMFS04 flex shaft handle mechanism is built for Eaton LG-frame molded case circuit breakers. It is not a universal operator; if your breaker is a different Eaton frame size, this mechanism will not mate to it. Confirm the frame designation stamped on the breaker reads LG before ordering.
2) How far from the breaker can the operating handle be mounted with the Eaton flex shaft mechanism?
The shaft is 4 ft long, so the flange-mounted handle can sit up to that distance of cable run from the breaker. Because the shaft is flexible rather than rigid, it can route around obstructions inside the enclosure instead of requiring a straight line to the breaker, which is what makes it useful in deep switchgear sections and control panels where the door handle is offset from the breaker position.
3) Can an operator switch an LG-frame breaker on and off without opening the enclosure door?
That is exactly what this accessory is for. The handle mounts to the enclosure flange and drives the LG-frame breaker through the flex shaft, so ON/OFF operation happens from outside the enclosure with the door closed. Useful in industrial switchgear and control panels where you do not want an operator reaching into live gear for routine switching.
4) What is the difference between a flex shaft handle mechanism and a direct or variable-depth rigid operator?
A flex shaft unit puts the operating handle on the enclosure flange and links it to the breaker through a flexible cable, so the handle does not have to line up with the breaker at all. A rigid, breaker-mounted operator ties the handle directly over the breaker and fixes its position. Choose the flex shaft version, like the Eaton Series G LHMFS04, when the handle has to sit somewhere the breaker is not, such as a door face away from the breaker centerline or a deep panel.
5) How much room do I need to plan for the Eaton LHMFS04 handle mechanism in the panel layout?
Allow for a footprint of 19 in width by 20 in length/depth, with 2.5 in height. That 2.5 in height is the figure to check first, since it is the dimension that competes with door clearance and any devices mounted on the inside of the enclosure door.
6) Is the LHMFS04 suitable for retrofitting an existing LG-frame breaker already installed in a panel?
Yes. Eaton lists LG-frame breaker retrofits and upgrades among the intended applications, alongside new switchgear and control panel builds. The flexible shaft is what makes retrofit practical, since it tolerates a handle location that was not planned around the breaker position.
7) What part number do I order for the Eaton Series G LG-frame flex shaft flange-mounted handle mechanism?
Order Eaton LHMFS04. It is a single configuration, part of the Series G circuit breaker accessory line, with the 4 ft flex shaft and flange mount included in that one number. There are no handing or length options to specify.
How fast can I get the Eaton LHMFS04 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 LHMFS04 come with a warranty?
Absolutely. The Eaton LHMFS04 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 LHMFS04?
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 LHMFS04 from ZenSupply?
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