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Manufacturer Resources
Spec Sheet
Product Specs
- Compliances:
- Contact Manufacturer
- Frame Size:
- Frame J-K
- Nema Rating:
- NEMA 1/12
- Product Height:
- 2.5 IN
- Product Length Depth:
- 20 IN
- Product Weight:
- 8 LB
- Product Width:
- 19 IN
- Series:
- Series G
- Shaft Length:
- 8 ft
- Department:
- Electrical
- Product Group:
- Enclosures & Boxes
- Product Subgroup:
- Locks & Handles
- Product Type:
- Handle mechanism
- Product Details:
- Handle mechanism
B-LINE JHMFS08 – Frequently Asked Questions
1) Will the B-Line JHMFS08 handle mechanism work with a Frame J or Frame K molded case breaker?
Yes. The JHMFS08 is built for Eaton Frame J-K molded case circuit breakers. If your breaker is a different frame class, this flange-mount handle mechanism is not the right part.
2) How long is the operating shaft on the JHMFS08 handle mechanism?
The shaft is supplied at 8 feet, which is why the kit ships as a long package. That length lets you cut the shaft to suit the depth between the breaker and the enclosure door on deep or tall gear, rather than being fixed to one enclosure size.
3) What does a circuit breaker handle mechanism actually do, and do I need one?
A handle mechanism transfers the breaker's on/off/trip operation out to an external operator on the enclosure door, so an electrician or maintenance tech can switch and lock out the breaker without opening the panel. You need one any time the breaker sits behind a closed door and you want door-mounted operation and lockout. The JHMFS08 covers Eaton Frame J-K breakers in NEMA 1/12 enclosures.
4) What are the shipping dimensions and weight of the JHMFS08 handle mechanism kit?
The kit is listed at 20 inches length/depth, 19 inches wide, 2.5 inches high, and 8 pounds. Worth knowing for receiving and storage, since the 8 foot shaft is coiled or packed within that carton.
5) Is the JHMFS08 part of a specific Eaton product line?
It belongs to Eaton's Series G line of molded case breaker accessories, ordered by the manufacturer part number JHMFS08. Quote that number directly when matching accessories across a panel build.
How fast can I get the B-LINE JHMFS08 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 B-LINE JHMFS08 come with a warranty?
Absolutely. The B-LINE JHMFS08 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 B-LINE JHMFS08?
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 B-LINE JHMFS08 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.