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Manufacturer Resources
Spec Sheet
Product Specs
- Amperage Rating:
- 400A
- Circuit Breaker Type:
- KD
- Frame Size:
- K-frame
- Frequency Rating:
- 50-60 Hz
- Interrupt Rating:
- 65 kAIC at 240 Vac, 35 kAIC at 480 Vac
- Number Of Poles:
- Three-pole
- Series:
- Series C
- Terminals:
- Without terminals
- Trip Type:
- Fixed thermal, fixed magnetic
- Voltage Rating:
- 600 Vac, 250 Vdc
- Department:
- Electrical
- Product Group:
- Sensors & Switches
- Product Subgroup:
- Switches
- Product Type:
- Molded case switch
- Product Length:
- 4.1 IN
- Product Details:
- Molded case switch
- Product Height:
- 5.5 IN
- Product Weight:
- 11.4 LB
- Product Width:
- 5.5 IN
B-LINE KD3400KW – Frequently Asked Questions
1) Is the Eaton KD3400KW a circuit breaker or a molded case switch?
The KD3400KW is catalogued as a molded case switch on a K-frame breaker body, rated 400A, three-pole, 600 Vac / 250 Vdc. Trip type is listed as fixed thermal, fixed magnetic. So it installs and mounts like a K-frame breaker but its role in the panel is switching/disconnect duty. If you need a true adjustable-trip protective device, this is not that unit.
2) Does the KD3400KW come with lugs or terminals?
No. The KD3400KW ships without terminals, so you have to order the K-frame lug or terminal kit separately and size it to your conductor. Plan that into the order before it hits the job, or the unit lands on site with no way to land the cable.
3) What is the interrupting rating of the Eaton KD3400KW at 480V?
35 kAIC at 480 Vac, and 65 kAIC at 240 Vac. If your available fault current at the point of installation exceeds 35 kA on a 480V system, this K-frame unit does not meet the spec and you need a higher-AIC frame or a series-rated combination.
4) Will a 400A K-frame switch fit the enclosure space I have?
Case dimensions are given as 5.5 in height, 5.5 in width and 4.1 in length, and the unit weighs 11.4 lb. Lay that against your enclosure depth plus whatever the lug kit adds, since terminals are not included and will extend past the case.
5) Can the KD3400KW be used on a 600V three-phase system?
Yes, it is rated 600 Vac, and also 250 Vdc for DC applications. Frequency rating is 50-60 Hz, so it suits both 60 Hz North American and 50 Hz systems. Note the interrupting rating is published at 240 Vac and 480 Vac only, so confirm fault current against those figures when applying it at 600V.
6) Is the trip setting on the KD3400KW adjustable?
No. Trip type is fixed thermal and fixed magnetic, so there is no adjustable instantaneous or long-time dial. If your coordination study calls for adjustable settings, you need an electronic-trip K-frame instead of this fixed-trip unit.
7) What exact part number do I order for the Eaton Series C 400A KD switch?
Order it as KD3400KW, Eaton Series C, breaker type KD, K-frame. Three-pole, 400A. That MPN identifies the complete unit without terminals, so a separate lug kit is part of the same order.
How fast can I get the B-LINE KD3400KW 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 KD3400KW come with a warranty?
Absolutely. The B-LINE KD3400KW 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 KD3400KW?
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 KD3400KW from ZenSupply?
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every order.
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