Hawker Siddeley Brush XL70F450 Semiconductor Fuse

Hawker Siddeley Brush XL70F450 semiconductor fuse is a high-current protective device rated for 450 A at 700 VAC, designed to shield power semiconductors in drives, motor controllers, and inverter circuits from overcurrent events. The XL70F450 designation identifies a 450-amp, 700-volt device within the Hawker Siddeley Brush semiconductor fuse family and is described in listings as a semiconductor fuse with an indicator variant. The S-COND FUSE WITH INDICATOR variant includes a built-in fuse status indicator to signal when the fuse has operated, aiding fault diagnosis in control panels. In contemporary catalogs, the part appears in Eaton’s lineup as IXL70F450 (700 V, 450 A), indicating continued lineage within the XL70/IXL70 family of semiconductor protection fuses. This fuse is used to protect sensitive power devices in industrial power electronics, helping to prevent damage from overcurrent events while providing visible status for quick maintenance checks.