Bussmann SPP-4F150 Fuse

Bussmann SPP-4F150 is a semiconductor square-body fuse from Eaton’s Bussmann line, specified at 150 amperes and 700 volts, designed to protect high‑current power‑electronic devices and their feed circuits by interrupting fault currents in a controlled manner; it is part of the SPP family described in distributor listings as a low‑voltage, blade‑end fuse with a long blade terminal configuration. The fuse uses a Long Blade connection (blade-end style) and is classified as SB-0 within Bussmann’s square‑body lineup, a form factor intended for rugged, high‑current applications and compact assemblies where reliable mechanical and electrical contact is important. Identified by the exact part number SPP‑4F150, this Bussmann device is marketed under the Bussmann brand (now Eaton Bussmann) and offers a 150 A rating at up to 700 V, aligning with the manufacturer’s catalog of high‑voltage, high‑current semiconductor fuse links intended to protect power electronics and related equipment.