The Federal Pacific Electric 18F Medium Voltage Fuse is a high‑voltage protection device rated for 150–250 MVA and 2.4–4.8 v-ac. It is designed for medium‑voltage circuits within that rating range, providing interruption to protect connected equipment and maintain system reliability. As part of Federal Pacific Electric’s 18F fuse family, this model is intended for medium‑voltage protection tasks in electrical distribution systems operating at those voltages.
