Eaton Bussmann FWH-450A 450A High Speed Fuse – Stud Mount – 750VAC / 750VDC

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SKU: FWH-450A GTIN/UPC: 051712150194
Regular price $162.40
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The Eaton Bussmann FWH-450A is a high-speed fuse engineered for semiconductor protection in high-power industrial and electronic systems. With a 450A RMS rating, it provides fast-acting fault interruption to protect sensitive equipment such as DC drives, rectifiers, and power converters. Its stud-mount design with blade end connections ensures secure installation and reliable performance in demanding AC/DC applications.

Voltage and Rating

  • Current Rating: 450A RMS
  • Voltage Rating: 750VAC / 750VDC
  • Interrupt Rating: 200 kAIC @ 1000VAC, 50 kAIC @ 500VDC
  • Fuse Type: High Speed Fuse

Key Specifications

  • Manufacturer: Eaton Bussmann
  • Catalog Number: FWH-450A
  • Product Type: High Speed Fuse
  • Fuse Indicator: Non-Indicating
  • Mounting Method: Stud Mount
  • Connection Type: Blade End x Blade End
  • Application: Semiconductor Protection, DC Drives, Power Converters, Rectifiers
  • Compliance: CE Marked, RoHS Compliant

Technical Specifications

  • Watt Losses: 74 W
  • Interrupt Characteristics: Ultra-fast clearing for semiconductor protection
  • Construction Type: Industrial-grade fuse element
  • Electrical Performance: High fault current protection in AC/DC systems
  • Packaging Type: Standard

Physical Details

  • Product Length/Depth: 2.17 in
  • Product Height: 2.8 in
  • Product Width: 5.3 in
  • Product Weight: 0.92 lb

Product Data

  • Manufacturer: Eaton Bussmann
  • UPC: 051712150194
  • Category: High Speed Fuses
  • Certifications: UL Recognized, CSA Certified
  • Warranty: Not Applicable


  • Type Circuit Breakers
  • Vendor Eaton Bussmann
  • Brand Eaton Bussmann

Returns are easy

You may return items within 30 days of delivery for a refund.

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My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.