Bussmann FWH-300A High Speed Semiconductor Fuse

Eaton BussmannModel:FWH-300A
Location unavailable
Electrical Equipment
Qty:1
Condition: New
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Motor Control Center
Motor Control Center

Seller since: Feb 2026

At a glance

Product
Bussmann FWH-300A High Speed Semiconductor Fuse
Manufacturer
Eaton Bussmann
Model
FWH-300A
Category
Electrical Equipment
Condition
NEW
Availability
In stock
Price or process
Request price
Quantity
1
Lead time
Not provided
Location
Location unavailable
Fulfillment
Shipping only
Listed on

Key specifications

Ampere Rating
300A
Body Material
Melamine
Certification Standards
UL Recognized, CSA Certified, IEC 60269
Fuse Type
High Speed Semiconductor (Class aR)
Interrupting Rating
200kA AC / 50kA DCA
Terminal Type
Blade (Knife)
Voltage Rating
500V AC/DCV

Supporting evidence

No supporting documents or certifications provided.

Description

The Bussmann FWH-300A is a high-speed semiconductor fuse designed for protecting power semiconductors, such as diodes, thyristors, and transistors, in industrial and commercial applications. Manufactured by Eaton's Bussmann series, this fuse offers superior current-limiting performance to minimize damage from short circuits in sensitive electronic systems. It features a cylindrical body with blade terminals for easy installation in fuse holders or blocks. Key applications include variable frequency drives (VFDs), UPS systems, rectifiers, and motor controllers where fast-acting protection is critical. Advantages over standard fuses include lower I²t values for better semiconductor protection, high interrupt ratings, and compliance with UL and IEC standards. Benefits include reduced downtime and equipment damage, though drawbacks may involve higher cost compared to general-purpose fuses and the need for precise matching to system voltage and current. This model is rated for 300A at 500V AC/DC, making it suitable for medium-power setups. Its compact design ensures compatibility with space-constrained environments, and it's known for reliability in high-fault current scenarios.
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Return Window
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Return Conditions
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