Schneider Electric Square D H321DS Disconnect Switch

The Schneider Electric Square D H321DS is a 30‑A, three‑pole fusible disconnect switch with a stainless steel enclosure, designed to safely isolate 3‑phase equipment at 240 VAC in demanding environments. It is rated NEMA 4/4X for durable indoor and outdoor use and belongs to Square D’s heavy‑duty safety switch family, offering rugged protection for motors, pumps, conveyors, and other industrial loads. The unit is surface‑mounted and accepts Class H, J, K, L, or R fusible elements, ensuring proper overcurrent protection for 3P, 240 VAC circuits and straightforward replacement with compatible fuses. Compliance notes include California Proposition 65, reflecting established regulatory labeling requirements for certain chemicals or materials. Typical installations include industrial control panels, equipment disconnects in manufacturing facilities, and process lines where a reliable, code‑conforming disconnect is essential to safeguarding personnel and downstream equipment.