Bussmann FWJ-100A High Speed Fuse

SKU: 988A1E85

$315.16

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Description

Bussmann FWJ-100A High Speed Fuse: Precision Protection for Demanding Circuits

Overview

The Bussmann FWJ-100A High Speed Fuse delivers ultra-rapid circuit protection for sensitive electronics and power systems. Engineered for critical applications where milliseconds matter, this 100-amp fuse safeguards equipment by interrupting fault currents faster than conventional fuses, minimizing damage and downtime. Ideal for semiconductor protection, industrial drives, and renewable energy systems.

Key Features

⚡️ Microsecond Response Time
Interrupts short-circuit currents in under 1/8 cycle (≤2 ms) to protect vulnerable components like diodes, IGBTs, and thyristors.

🛡️ High Interrupt Rating
100kA interrupting capacity ensures reliable performance under extreme fault conditions.

🌡️ Robust Construction
Sand-filled ceramic body withstands high temperatures and arc energies, preventing rupture during operation.

🔌 Space-Efficient Design
Compact dimensions (50.8mm x 15.3mm) enable integration in dense electrical panels.

🔧 Drop-In Replacement
Compatible with standard fuse holders meeting IEC 60269-4 requirements.

Technical Specifications

Parameter Value
Rated Current 100A
Voltage Rating 700V AC (500V DC)
Speed Class Ultra-Rapid (gR/gS)
Interrupt Rating 100kA AC/DC
Dimensions 50.8mm x 15.3mm (LxØ)
Terminals Blade-type (J-case)
Certifications UL 248-14, CSA, IEC 60269

Typical Applications

  • Solar/wind power inverters
  • Motor drives & VFDs
  • UPS systems
  • Welding equipment
  • EV charging stations
  • Industrial automation controls

Why Choose Bussmann?
Backed by Eaton’s global engineering expertise, the FWJ series offers industry-leading reliability and precision. Every fuse undergoes rigorous testing to ensure consistent performance, helping you maintain operational continuity while reducing maintenance costs.

⚠️ Install Note: Always replace fuses with identical specifications and verify compatibility with system voltage/current requirements.

This description uses clear technical language while emphasizing speed-critical applications and compliance data. The structured Markdown layout ensures easy scanning for critical specs.
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Shipping and Returns
Returns are easy You may return items within 30 days of delivery for a refund. View our return policy FREE Shipping on orders over $49. Eaton Bussmann Fuse Relay Online Sales Store offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s). Same Day Shipping We strive to ship out your items within one business day. In rare circumstances, Eaton Bussmann Fuse Relay Online Sales Store may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
1-Year Warranty
Eaton Bussmann's fuses and relays for sale are brand new and come with a 1-year comprehensive warranty. Rest assured, all products are authentic OEM (original equipment manufacturer).