Schneider Electric’s Square D H221NHD is a heavy‑duty fusible safety switch that provides a robust disconnect for 240 V industrial circuits. This 30 A, 2‑pole, 3‑wire device includes a neutral and is intended for indoor general‑purpose use in a NEMA 1 enclosure, with a 7.5 hp rating at 240 VAC (250 VDC). It employs a quick‑make, quick‑break operating mechanism to minimize arcing during switching. The H221N family has been discontinued as of January 31, 2024, and Schneider Electric lists VH221N as the replacement model for continued availability and support.
