BUSSMANN FWH-80A Fuse

BUSSMANN FWH-80A is an 80-amp high-speed fuse cartridge in Eaton’s Bussmann series, designed for fast overcurrent protection in high-voltage power electronics up to 500 V. The fast-acting design interrupts fault current quickly to limit damage to semiconductors and other load devices, making it suitable for protecting power supplies, inverters, drives, and similar equipment powered from 500 V classes. The cartridge measures about 24 mm by 44 mm (0.947 in × 1.736 in), defining a compact form factor that aligns with the FWH fuse family. The FWH-80A is rated for a maximum of 500 VAC or 500 VDC and carries an 80 A continuous rating, indicating the current level it is intended to carry under normal operation before tripping. As part of Eaton Bussmann’s semiconductor‑protection lineup, this fuse provides rapid interruption during overcurrent events to safeguard downstream components in electrical systems requiring reliable, fast fault isolation. The model is cataloged as FWH-80A in manufacturer and distributor literature for applications needing robust 80 A, 500 V‑class protection within the Bussmann FWH family.