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Bussmann FWH250A - Semiconductor Fuse 250A 500V (Ferrule Mount)

United Fuses
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The FWH250A is a high-speed semiconductor fuse designed for the protection of power diodes, thyristors, and other sensitive power electronic devices from overcurrents and short circuits. This fuse is rated for 250 Amps at 500 Volts AC/DC, providing robust current-limiting performance with a high interrupting capacity. Constructed with a compact, ferrule-style body, the FWH250A features a silver-plated element for reliable and consistent operation, and it weighs 5.19 lb. It complies with IEC 60269-4 and UL 248-13 standards, ensuring global acceptance for demanding applications. Typical industrial uses include the protection of variable frequency drives, UPS systems, and DC power supplies.

Key Features & Specifications
  • Type: High-speed semiconductor fuse, ferrule mount, silver-plated element
  • Voltage Rating: 500 V AC/DC
  • Current Rating: 250 A
  • Weight: 5.19 lb
  • Standards: IEC 60269-4, UL 248-13
  • Applications: Protection of power diodes, thyristors, VFDs, UPS systems, DC power supplies
  • Amperage: 250
  • Voltage: 500
  • Fuse Class: aR (semiconductor)
  • Mounting: Ferrule
  • Connection: Ferrule
  • Certification: UL, IEC


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