Schneider Electric MD3304X Enclosed Manual Motor Controller

Schneider Electric's MD3304X is a three-pole, non-fusible enclosed motor disconnect switch rated for 30 A at up to 600 VAC, built to safely isolate a three‑phase motor for service or maintenance in industrial equipment. As part of the Square D MD family, the device features a front‑mounted operator for manual actuation and wall‑mounting compatibility inside panels or on equipment; its enclosure is non‑metallic and rated for multiple NEMA configurations (NEMA 1, 3R, 4, 4X, and 12) with UL 508 listing for standard electrical installations. For motor horsepower, the MD3304X supports 7.5 hp at 230/240 V, 20 hp at 440/480 V, and 25 hp at 600 V, aligning its output with common motors across voltage ranges. Net weight is about 1.205 lb (gross 1.48 lb), and the unit provides eight conduit‑drilling points to accommodate wiring layouts during installation. This non‑fusible MD motor disconnect switch is designed to offer a straightforward, rugged solution for isolating motors in compact panels or live equipment stops, ensuring a reliable manual shutdown point in a wide range of industrial environments.