Bussmann Eaton Series FWA High...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,597.91
Bussmann Eaton Series FWA High-Speed Fuse, Flush End, Stud Mount, 500V

Bussmann Eaton Series FWA High-Speed Fuse, Flush End, Stud Mount, 500V

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Model: FWA-1000AH

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

$1,597.91
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Bussmann Eaton Series FWA High-Speed Fuse, Flush End, Stud Mount, 500V

The Bussmann Eaton Series FWA High-Speed Fuse is a cylindrical, flush-end, stud-mount fuse engineered for fast-acting protection of semiconductor devices and power conversion equipment. Rated 500 Vac and 500 Vdc with an interrupting rating of 200 kAIC at Vac and 50 kAIC at 120 Vdc, the FWA series is classified aR (accompanied semiconductor protection) and spans amp ratings from 1000A to 3000A across the family, so you can match the fuse to your specific circuit load.

Key Features

  • Amp Rating Range: The FWA series is available from 1000A to 3000A, letting you match the fuse to the specific circuit load and application.
  • Voltage Rating: 500 Vac and 500 Vdc construction supports both AC and DC semiconductor protection applications.
  • High-Speed Fuse Design: Fast-acting, high-speed element construction protects sensitive solid-state devices such as SCRs, IGBTs, and diode rectifiers.
  • Interrupting Rating: 200 kAIC at Vac and 50 kAIC at 120 Vdc for reliable performance under high fault-current conditions.
  • Fuse Shape: Cylindrical, flush-end body with stud terminals for a secure busbar and connector mounting.
  • Utilization Category: aR (accompanied semiconductor protection) for coordinated protection of power semiconductor devices.
  • Rated Switching / Breaking Capacity: 200 A.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Insulated Metal Gripping Lugs (IMGL): No
  • Compliances: CE Marked
  • Voltage Rating: 130V
  • Voltage Type: AC
  • Breaking Capacity: 200 A
  • Fuse Shape: Cylindrical, flush end
  • Certifications: UL Recognized
  • Packaging Type: Standard
  • Utilization Category: aR (accompanied semiconductor protection)
  • Rated Switching Capacity: 200 A

Typical Applications

  • Semiconductor Device and Power Converter Protection
  • Variable Frequency Drives and Motor Control Circuits
  • Industrial Rectifier and Inverter Circuit Protection
  • High Fault-Current Electrical Distribution Systems
  • Accompanied Semiconductor (aR) Coordinated Protection Schemes

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the FWA Series high-speed fuse line backs that reputation with a UL Recognized, CE Marked design rated for 200 kAIC at Vac and 50 kAIC at 120 Vdc. The cylindrical, flush-end, stud-mount construction delivers a secure, code-conscious connection for demanding semiconductor and power conversion applications, making it a dependable choice for professional electrical work.

Manufacturer Resources

Product Specs

Insulated Metal Gripping Lugs Imgl:
No
Department:
Electrical
Product Type:
Fuse
Product Group:
Fuses
Compliances:
CE Marked
Voltage Rating:
130V
Voltage Type:
AC
Breaking Capacity:
200 A
Fuse Shape:
Cylindrical, flush end
Mounting Method:
Flush
Certifications:
UL Recognized
Product Details:
High speed fuse
Packaging Type:
Standard
Utilization Category:
aR (accompanied semiconductor protection)
Rated Switching Capacity:
200 A
Product Subgroup:
Other Fuses
Series:
FWA
Amperage Rating:
1000A - 3000A
Listing:
UL Recognized
Standards:
CE Marked
Configuration:
Flush End, Stud Mount

Bussmann FWA-1000AH – Frequently Asked Questions

1) What amp ratings are available in the Bussmann FWA high-speed fuse?
The FWA series spans 1000A to 3000A. Orderable ratings are 1000A (FWA-1000AH), 1200A (FWA-1200AH), 1500A (FWA-1500AH), 2500A (FWA-2500AH) and 3000A (FWA-3000AH). Size the fuse to the continuous circuit load and the semiconductor it is protecting, not to the conductor.
2) Will a Bussmann FWA fuse protect my SCR drive, or do I need a standard branch-circuit fuse?
The FWA is a high-speed semiconductor fuse, classified aR, meaning accompanied semiconductor protection. It clears fast enough to protect solid-state devices such as SCRs, IGBTs and diode rectifiers, but aR means it is a partial-range device: it handles short circuits only. You still need a separate overload protective device (breaker, overload relay or branch fuse) in the circuit. A standard branch-circuit fuse alone will not clear fast enough to save the semiconductor.
3) How does the FWA fuse mount - does it take a fuse clip holder?
No clips. The FWA is a cylindrical, flush-end body with stud terminals, so it bolts directly to busbar or cable connectors. You need a drilled busbar or stud connectors on both ends, not a clip-style fuse block. Budget for the hardware and torque the joints to your connector manufacturer's spec.
4) Does the Bussmann FWA fuse come with insulated metal gripping lugs?
It does not. The FWA flush-end stud-mount version is supplied without IMGL, so the terminations are bare flush ends for bolted connection. If your panel layout depends on insulated gripping lugs for clearance or touch-safety, that has to be handled in the connector or shielding design.
5) Is the Bussmann FWA fuse UL listed and CE marked for a spec submittal?
The FWA carries UL Recognition and is CE Marked. Note the distinction a specifying engineer cares about: UL Recognized is a component recognition, not a full UL Listing, so it is intended for use inside equipment evaluated as an assembly rather than as a standalone listed device.
6) How do I order the right Bussmann FWA fuse - what do I have to specify?
Two things settle the order: the amp rating and the end configuration. Amp rating is the only option axis here, running 1000A, 1200A, 1500A, 2500A and 3000A, and the part number follows it directly (FWA-1500AH is the 1500 amp). The body style is fixed as cylindrical flush-end with stud mount, shipped in standard packaging. If your existing holder needs blade or bolt-in tags rather than flush ends, this configuration will not drop in.
7) What kind of equipment is the Bussmann FWA series actually used in?
Typical placement is inside power conversion gear: variable frequency drives and motor control circuits, industrial rectifier and inverter sections, and coordinated aR protection schemes for power semiconductors. At 1000A to 3000A these are line-side or DC-link protection in large drives and rectifier stacks, not control-panel fuses.
How fast can I get the Bussmann FWA-1000AH 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 FWA-1000AH come with a warranty?
Absolutely. The Bussmann FWA-1000AH 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 FWA-1000AH?
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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