Bussmann FWX-300A High Speed S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$297.84

Bussmann FWX-300A High Speed Semiconductor Fuse, 250V

(No reviews yet) Write a Review

Model: FWX-300A

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

$297.84
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 FWX-300A High Speed Semiconductor Fuse, 250V

The Bussmann FWX-300A is a high speed fuse from the Eaton Bussmann FWX series, purpose-built for semiconductor protection in power electronics and industrial control applications. Rated 300A at 250V, this fuse is engineered to safeguard sensitive semiconductor devices such as SCRs, diodes, and power transistors from damaging overcurrent conditions. Whether used in variable frequency drives, rectifier assemblies, or other power conversion equipment, the FWX-300A is engineered to provide dependable, code-compliant circuit protection. As part of the trusted Bussmann product line, the FWX-300A delivers the fast-clearing response semiconductor circuits require, helping protect costly power conversion equipment from fault-current damage and unplanned downtime.

Key Features

  • Amperage Rating: 300A, sized to provide precise overcurrent protection for semiconductor circuits and power conversion loads.
  • Voltage Rating: 250V, suited to power electronics and industrial control systems operating within this range.
  • High Speed Fuse Design: Engineered for fast clearing of fault currents, limiting let-through energy to protect sensitive semiconductor components.
  • Semiconductor Fuse Construction: Purpose-built as a semiconductor fuse for SCR, diode, and power rectifier protection.
  • Eaton Bussmann FWX Series: Part of the recognized Bussmann FWX series of high speed, semiconductor-rated fuses.
  • Reliable Overcurrent Protection: Designed to help prevent damage to sensitive power semiconductor devices under fault conditions.
  • Bussmann Reliability: Backed by the Eaton Bussmann name, a widely recognized source for circuit protection products across industrial and commercial markets.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Power Electronics and Semiconductor Protection Circuits
  • Variable Frequency Drives (VFDs) and Motor Control Systems
  • SCR, Diode, and Power Rectifier Protection
  • Industrial Power Conversion Equipment
  • Commercial and Industrial Electrical Systems Requiring Fast-Acting Overcurrent Protection

Why Bussmann?

Bussmann, an Eaton brand, is widely recognized for engineering high-performance circuit protection products built for demanding industrial and commercial electrical systems. The FWX series high speed semiconductor fuse reflects that engineering standard, delivering fast-acting overcurrent protection sized for 300A applications at 250V. Choose the Bussmann FWX-300A for dependable semiconductor circuit protection backed by the trusted Eaton Bussmann name.

Manufacturer Resources

Product Specs

list_batch:
BUSS-20260919
Product Type:
Fuse
Series:
FWX
Voltage Rating:
250V
Amperage Rating:
300A
Department:
Electrical
Product Subgroup:
Shop by Brand

Bussmann FWX-300A – Frequently Asked Questions

How fast can I get the Bussmann FWX-300A 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 FWX-300A come with a warranty?
Absolutely. The Bussmann FWX-300A 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 FWX-300A?
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 FWX-300A 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.