Bussmann KBC Series Semiconduc...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$177.00
Bussmann KBC Series Semiconductor Fuse, 1000 Vdc Standard Non-Indicating

Bussmann KBC Series Semiconductor Fuse, 1000 Vdc Standard Non-Indicating

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Model: KBC-2

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

$177.00
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Bussmann KBC Series Semiconductor Fuse, 1000 Vdc Standard Non-Indicating

The Eaton Bussmann KBC series semiconductor fuse delivers fast-acting overcurrent protection for power electronics and solid-state equipment, rated 1000 Vdc in a Standard, Non-Indicating configuration. Available across the KBC family in amp ratings from 2A to 8A, these fuses are engineered to protect sensitive semiconductor devices such as SCRs, diodes, and IGBTs from damaging fault currents in rectifiers, converters, and motor drive circuits. The Standard, Non-Indicating design supports reliable, code-compliant performance in demanding industrial and power conversion applications where consistent semiconductor protection is critical.

Key Features

  • Series: Eaton Bussmann KBC series semiconductor fuse engineered for fast, reliable overcurrent protection.
  • Voltage Rating: Rated 1000 Vdc for use in high-voltage DC power electronics, drive, and conversion circuits.
  • Amp Rating Range: Available across the KBC lineup in 2A, 3A, 4A, 6A, 7A, and 8A ratings to match a wide range of semiconductor protection requirements.
  • Type: Standard, Non-Indicating construction for straightforward installation without a blown-fuse indicator.
  • Compact Size: Measures approximately .75 in x .75 in x 5 in and weighs .13 lb, sized for space-conscious panel and enclosure layouts.
  • Application Focus: Purpose-built to safeguard semiconductor devices, including SCRs, diodes, and IGBTs, from short-circuit and overload conditions.

Technical Specifications

  • Product Length Depth: .75 in
  • Product Width: .75 in
  • Product Height: 5 in
  • Product Weight: .13 lb
  • Compliances: Contact factory

Typical Applications

  • Power Electronics and Drive Circuits
  • Semiconductor Device Protection (SCRs, Diodes, IGBTs)
  • DC Power Conversion Systems and Rectifiers
  • Industrial Motor Drives
  • Renewable Energy and Power Supply Equipment

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the KBC series semiconductor fuse reflects that standard with a Standard, Non-Indicating design rated for 1000 Vdc service. Selecting the correct amp rating within the 2A-8A KBC lineup helps ensure semiconductor components stay protected against damaging fault currents in demanding industrial and power electronic systems. Bussmann's semiconductor fuse construction is engineered for consistent, code-compliant performance in professional electrical installations.

Manufacturer Resources

Product Specs

Packaging Type:
Standard
Department:
Electrical
Fuse Indicator:
Non Indicating
Product Length Depth:
.75 in
Product Weight:
.13 lb
Product Width:
.75 in
Compliances:
Contact factory
Product Height:
5 in
Product Type:
Fuse
Voltage Rating:
1000VDC
Series:
KBC
Configuration:
Standard Non-Indicating
Product Group:
Fuses
Product Subgroup:
Other Fuses

Bussmann KBC-2 – Frequently Asked Questions

1) What amp ratings does the Bussmann KBC semiconductor fuse come in?
The KBC series runs 2A, 3A, 4A, 6A, 7A and 8A in the low end, plus 70A, 80A and 90A. Part numbers follow the rating directly: KBC-2 through KBC-8 for the small ratings, and KBC-70I, KBC-80I and KBC-90I for the three large ones. Note the I suffix on the 70, 80 and 90 amp parts, so order by the full number rather than the amp value alone.
2) Can I use a Bussmann KBC fuse on a 1000 volt DC bus?
Yes. The KBC series is rated 1000 Vdc, which is what makes it usable on high voltage DC links in rectifiers, converters and drive circuits. Match the amp rating to the semiconductor you are protecting, not to the wire.
3) Does the KBC fuse have a blown fuse indicator pin for a microswitch?
No. The KBC is a Standard, Non-Indicating fuse, so there is no indicator pin and nothing to drive a microswitch or remote trip alarm. If your panel design relies on a mechanical indicator to signal an open fuse, you need an indicating style fuse instead.
4) Will a standard branch circuit fuse protect my SCR drive the same way a KBC will?
No, and this is the common mistake. A branch circuit fuse is sized to protect conductors, and a semiconductor will fail long before it clears. The KBC is a fast acting semiconductor fuse built to open ahead of the device it guards, which is why it is specified for SCRs, diodes and IGBTs in rectifiers, converters and motor drive circuits. Use the KBC in series with the semiconductor and keep the branch circuit fuse for the feeder.
5) How much space do I need in the panel for a Bussmann KBC fuse?
Plan on a body measuring .75 in x .75 in x 5 in, weighing .13 lb. That square cross section and 5 inch overall length is what drives your fuse block spacing and enclosure depth, so lay it out before committing the DIN rail position.
6) Can I swap a KBC-6 for a KBC-7 if that is what I have on the shelf?
Not as a like-for-like substitution. Semiconductor fuses are selected by the let-through energy the protected device can survive, so going up a rating from 6A to 7A changes the clearing characteristic and can leave the SCR or IGBT unprotected. Replace with the same catalog number the equipment drawing calls out.
7) Is the KBC fuse UL listed?
For agency approvals on the KBC series, Bussmann directs the question to the factory rather than publishing a listing on the part data. Confirm through Eaton before submitting it against a spec that requires a named approval.
8) Is the Bussmann KBC sold individually or in a multi-pack?
KBC fuses ship in standard packaging, which is the single-fuse presentation rather than a bulk carton. For MRO stocking, order the quantity you want by amp rating, since ratings are not interchangeable across the 2A to 90A span.
How fast can I get the Bussmann KBC-2 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 Bussmann KBC-2 come with a warranty?
Absolutely. The Bussmann KBC-2 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 Bussmann KBC-2?
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 Bussmann KBC-2 from ZenSupply?
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