Bussmann FWA-25A10F High-Speed...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$65.07

Bussmann FWA-25A10F High-Speed Semiconductor Fuse, 500V, 25A, Ferrule End

(No reviews yet) Write a Review

Model: FWA-25A10F

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

$65.07
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

Bussmann FWA Series High-Speed Semiconductor Fuse

Bussmann FWA Series high-speed fuses from Eaton Bussmann provide fast-acting, non-indicating overcurrent protection engineered specifically for semiconductor and power electronic circuits. Rated 500V with a 25A capacity and a 100 kAIC interrupt rating, this fuse features a ferrule end x ferrule end termination style designed for rapid current interruption under fault conditions. High-speed fuses like this Eaton Bussmann FWA series fuse are essential for protecting sensitive semiconductor components such as SCRs, diodes, and rectifiers, where standard fuses may not clear fast enough to prevent device damage during a fault event.

Key Features

  • Voltage & Amperage Rating: Rated 500V and 25A, this fuse is sized for demanding semiconductor and power conversion circuit protection applications where accurate current sensing is critical.
  • High Interrupt Rating: A 100 kAIC interrupt rating gives this fuse the capacity to safely clear high fault currents without compromising the protected circuit.
  • High-Speed, Fast-Acting Design: As part of the Eaton Bussmann FWA series of high-speed fuses, this device is engineered to respond quickly to overcurrent conditions, helping protect semiconductor devices such as SCRs, diodes, and rectifiers from damaging short-duration current spikes that standard fuses may not clear in time.
  • Non-Indicating Construction: This fuse uses a non-indicating body design, a standard configuration for many semiconductor fuse applications where visual blown-fuse indication is not required.
  • Ferrule End x Ferrule End Termination: The dual ferrule end termination style is designed for compatibility with standard semiconductor fuse clips, blocks, and holders used in industrial power equipment.
  • Eaton Bussmann Series Engineering: Manufactured under the Eaton Bussmann series product line, this fuse reflects Bussmann's long-standing reputation for dependable overcurrent protection components used across industrial and commercial power systems.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Semiconductor Protection for Rectifiers, SCRs, and Diodes
  • Power Electronic Conversion Equipment
  • Motor Drive and DC Power Supply Circuits
  • Industrial Power Distribution Systems
  • Uninterruptible Power Supply (UPS) and Power Conversion Equipment
  • Commercial and Industrial Electrical Installations Requiring High-Speed Fault Protection

Why Bussmann?

Bussmann fuses from Eaton are engineered to deliver dependable, high-speed overcurrent protection in demanding semiconductor and power electronic applications. With a 500V, 25A rating and a 100 kAIC interrupt capacity, this Eaton Bussmann series fuse is built for fast, reliable circuit protection where standard fuses fall short. Choosing genuine Eaton Bussmann components helps ensure consistent, code-compliant performance for professional industrial and commercial electrical systems.

Manufacturer Resources

Product Specs

list_batch:
BUSS-20260919
Product Type:
Semiconductor Fuse
Series:
FWA
Voltage Rating:
500V
Amperage Rating:
25A
Connection Type:
Ferrule End
Configuration:
Non-Indicating
Department:
Electrical
Product Subgroup:
Fuses
Product Group:
Circuit Protection
Product Weight:
9.1 g
Product Height:
10 mm
Product Width:
10 mm
Certifications:
UL Recognized
Compliances:
CE Marked
Product Length:
38 mm

Bussmann FWA-25A10F – Frequently Asked Questions

1) Can I use a standard Class J or Class RK5 fuse instead of the Bussmann FWA-25A10F in an SCR or diode circuit?
No. The FWA-25A10F is a high-speed semiconductor fuse, and standard branch-circuit fuses clear too slowly to protect SCRs, diodes and rectifiers from short-duration fault current. Substituting a general-purpose fuse of the same 25A, 500V rating will usually let the semiconductor fail before the fuse opens. If the drive, rectifier or UPS schematic calls for a semiconductor fuse, it has to be a high-speed type.
2) What voltage and amperage is the Bussmann FWA-25A10F rated for, and will it handle a high fault-current service?
Rated 500V at 25A with a 100 kAIC interrupting rating. That interrupting capacity means it can safely clear faults on industrial distribution and power conversion equipment where available fault current is high. The 500V rating is a maximum, so it can be applied at lower system voltages, but never above 500V.
3) Does the Bussmann FWA-25A10F have a blown-fuse indicator or microswitch option?
No. This one is a non-indicating body, which is the common configuration for semiconductor fuse applications. If your panel relies on a visual pin or a striker to trip a microswitch for blown-fuse monitoring, you need an indicating version instead of this part number.
4) What is the exact part number to order for the 25A 500V FWA fuse?
Order Bussmann FWA-25A10F. That is the Eaton Bussmann FWA series high-speed fuse at 500V, 25A, ferrule end, non-indicating.
5) Is the FWA-25A10F suitable for DC circuits in a drive or UPS?
The FWA series is applied in motor drive and DC power supply circuits, UPS and power conversion equipment, and rectifier front ends. Published ratings for this part are 500V and 25A with 100 kAIC. For a DC application, verify the DC voltage and time constant against Eaton's FWA data before applying it, since AC and DC ratings differ.
How fast can I get the Bussmann FWA-25A10F 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-25A10F come with a warranty?
Absolutely. The Bussmann FWA-25A10F 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-25A10F?
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 FWA-25A10F 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.