Bussmann FWP-30B High-Speed Se...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$161.11
Bussmann FWP-30B High-Speed Semiconductor Fuse, 30A, 200kAIC

Bussmann FWP-30B High-Speed Semiconductor Fuse, 30A, 200kAIC

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Model: FWP-30B

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

$161.11
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Bussmann FWP-30B High-Speed Semiconductor Fuse, 30A, 200kAIC

The Bussmann FWP-30B is part of the Eaton Bussmann series FWP high speed fuse line, engineered to protect semiconductor devices and power electronics from damaging fault currents. This 30A fuse features a blade end terminal configuration and delivers high interrupting capacity with ratings of 200 kAIC Vac and 50 kAIC at 700 Vdc. The FWP series is rated for 1400 Vac (FWS 8-15A), 2100 Vac (FWS 2-6A), and 1000 Vdc (FWL/FWS 2-30A) applications, making it a versatile choice for both AC and DC circuit protection in demanding industrial environments.

Key Features

  • Amperage Rating: 30A high-speed fuse designed for fast-acting protection of sensitive semiconductor loads.
  • Voltage Ratings: 1400 Vac (FWS 8-15A), 2100 Vac (FWS 2-6A), and 1000 Vdc (FWL/FWS 2-30A) for flexible use across AC and DC systems.
  • Interrupt Rating: 200 kAIC Vac and 50 kAIC at 700 Vdc, providing strong fault-current interruption capability for high-energy circuits.
  • Terminal Style: Blade end configuration for compatible mounting in matching fuse blocks and holders.
  • Series: Eaton Bussmann FWP high speed fuse series, purpose-built for semiconductor and power conversion protection.
  • Fuse Type: High speed fuse construction suited for current-limiting protection in power electronic assemblies.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Semiconductor Device Protection (SCRs, Diodes, IGBTs)
  • Power Electronics and Power Conversion Equipment
  • Variable Frequency Drives and Motor Control Circuits
  • Rectifier and Inverter Circuit Protection
  • Industrial Control Panels and Power Supplies

Why Bussmann?

Bussmann high speed fuses are built to deliver the fast response and high interrupting capacity that semiconductor and power electronics circuits demand. With interrupt ratings up to 200 kAIC Vac and 50 kAIC at 700 Vdc, the FWP-30B is engineered to help protect critical power conversion equipment from damaging fault conditions. Choose Bussmann for dependable, code-conscious circuit protection in demanding electrical applications.

Manufacturer Resources

Product Specs

list_batch:
BUSS-20260919
Product Type:
Semiconductor Fuse
Series:
FWP
Amperage Rating:
30A
Configuration:
Blade End
Department:
Electrical
Product Subgroup:
Fuses
Product Group:
Circuit Protection
Product Weight:
24.8 g
Product Height:
14 mm
Product Width:
14 mm
Product Length:
73 mm
Compliances:
CE Marked

Bussmann FWP-30B – Frequently Asked Questions

1) What is the Bussmann FWP-30B fuse used for?
The FWP-30B is a high speed semiconductor fuse rated 30A. It is the fuse you put ahead of solid state power devices, SCRs, diodes and IGBTs, where a standard time delay fuse clears too slowly to save the silicon. Typical placements are rectifier and inverter sections, variable frequency drives and motor control circuits, power supplies and industrial control panels.
2) Can I substitute a regular 30A Class J or RK5 fuse for the FWP-30B in a drive?
No. Branch circuit fuses like Class J or RK5 are built to protect conductors and clear in time frames a semiconductor junction will not survive. The FWP-30B is a high speed, current limiting semiconductor fuse sized to let through far less energy, and drive and rectifier manufacturers specify it for that reason. Swapping in a general purpose 30A fuse leaves the SCRs and diodes unprotected even though the amp rating matches.
3) Will the FWP-30B drop into my existing fuse block?
Only if the block is made for blade end fuses. The FWP-30B uses a blade end terminal, so it seats in a matching blade type fuse block or holder. It will not fit a ferrule clip holder or a bolt on mounting pattern. Check the terminal style on the block you already have before ordering.
4) What interrupting rating does the Bussmann FWP-30B have?
200 kAIC on AC, and 50 kAIC at 700 Vdc. That matters when you are documenting short circuit current rating on a panel: with available fault current at the fuse well under 200 kA on the AC side, the FWP-30B is not the limiting component in the assembly.
5) Is the FWP-30B rated for DC circuits as well as AC?
Yes, it is applied on both. The FWP line is used for AC and DC circuit protection in industrial power conversion work, and the DC interrupting capability is stated at 50 kAIC at 700 Vdc. For battery, rectifier output and DC bus duty, size against that 700 Vdc figure rather than the AC rating.
6) What exact part number do I order for a 30A Bussmann FWP high speed fuse?
The part number is FWP-30B, an Eaton Bussmann FWP series high speed fuse rated 30A. The B suffix identifies the blade end version, so quote the full FWP-30B when ordering rather than FWP-30 on its own.
7) I maintain a plant with several drives. Can I standardize on the FWP-30B across them?
You can standardize wherever the drive or rectifier calls for a 30A high speed semiconductor fuse with blade end terminals and the fault current and circuit voltage are within the 200 kAIC AC and 50 kAIC at 700 Vdc ratings. What stops a straight fleet swap is usually mechanical: blade centers and blade size vary by fuse body, so confirm the fuse the drive already carries is a blade end FWP class part and not a ferrule or bolt down style.
How fast can I get the Bussmann FWP-30B 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 FWP-30B come with a warranty?
Absolutely. The Bussmann FWP-30B 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 FWP-30B?
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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