Eaton Bussmann

Eaton Bussmann FWJ-250A 250A High Speed Cylindrical Fuse – Class aR – 1000VAC / 800VDC – Stud Mount

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SKU: FWJ-250A GTIN/UPC: 051712796231
$302.40
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The Eaton Bussmann FWJ-250A is a high-speed cylindrical fuse engineered for semiconductor protection in demanding industrial power systems. Rated at 250A, it provides ultra-fast fault interruption to protect sensitive equipment such as DC drives, rectifiers, and power converters. Its stud-mounted cylindrical center-bolted design ensures secure installation and reliable operation in high-power AC/DC applications.

Voltage and Rating

  • Current Rating: 250A
  • Voltage Rating: 1000VAC / 800VDC
  • Breaking Capacity: 100 kA
  • Interrupt Rating: 100 kAIC @ 1000V
  • Rated Switching Capacity: 100 A

Key Specifications

  • Manufacturer: Eaton Bussmann
  • Catalog Number: FWJ-250A
  • Global Catalog: FWJ-250A
  • Product Type: High Speed Cylindrical Fuse
  • Class: Class aR
  • Utilization Category: aR (Semiconductor Protection)
  • Current Type: AC/DC
  • Fuse Indicator: Non-Indicating
  • Mounting Method: Stud Mount
  • Fuse Shape: Cylindrical, Center Bolted Tags
  • Application: Semiconductor Protection, DC Common Bus, DC Drives, Power Converters, Rectifiers

Technical Specifications

  • Pre-Arc (I²T): 16000
  • Clearing (I²T): 112000 @ 1000V
  • Watt Losses: 50 W
  • Center-to-Center Distance: 113.8 mm
  • Construction Size: Other
  • Insulated Metal Gripping Lugs (IMGL): No
  • Fuse Type: FWJ-A
  • IEC Fuse System: Other

Physical Details

  • Product Length/Depth: 147 mm
  • Product Height: 51 mm
  • Product Width: 51 mm
  • Product Weight: 521 g

Product Data

  • Manufacturer: Eaton Bussmann
  • UPC: 051712796231
  • EAN: 5027590021241
  • Category: High Speed Fuses
  • Certifications: UL Recognized, CSA Certified
  • Compliance: CE Marked, RoHS Compliant
  • Warranty: Not Applicable
  • Type Circuit Breakers
  • Vendor Eaton Bussmann
  • Brand Eaton Bussmann

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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.