The Schneider Electric D12FJ4 is an interchangeable fuse clip kit that completes a Class J fuse assembly for Schneider Electric’s D10 fusible disconnect switches and the D10 Class 9421 NEMA‑style door‑mounted disconnect switches. It is rated for 600 VAC and supports Class J fuse clips in the 101–200 A range, with a maximum current rating of 200 A. Catalog number D12FJ4. This fuse clip kit is designed for use with the D10 family to enable safe fuse replacement and reliable contact within the disconnect assembly, suitable for circuits up to 200 A at 600 VAC.
