Schneider Electric H-364-N Heavy Duty Fusible Safety Switch

Schneider Electric's Square D H364N heavy-duty fusible safety switch is a 3-pole, 200 A, 600 V AC/DC disconnect designed for indoor use in industrial power systems. It features a NEMA 1 steel enclosure with a factory-installed neutral and a surface-mountable chassis for straightforward installation. The switch uses a fusible disconnect arrangement with lug terminals compatible with copper or aluminum conductors from AWG 6 to 250 kcmil. It carries a 200 A current rating and a 600 V rating, suitable for three-phase motor and feeder applications. The unit provides short-circuit current ratings of 10 kA at H or K fuse configurations and up to 200 kA at R, J, or L configurations. Maximum horsepower ratings include 50 hp at 480 V, 125 hp at 480 V, 60 hp at 600 V, and 150 hp at 600 V, aligning with NEC 240.6 and NEC 430.52 guidelines for motor loads. External dimensions measure approximately 29 inches tall, 18.5 inches wide, and 8.25 inches deep, delivering a compact footprint for its class. With three poles, a factory-installed neutral, and rugged enclosure construction, this heavy-duty safety switch provides reliable, code-compliant protection for three-phase circuits in industrial environments.