Schneider Electric H325NR Fusible Safety Switch

Schneider Electric’s Square D H325NR heavy-duty fusible safety switch delivers a rugged 400 A, 3-pole disconnect for outdoor-rated service, featuring a four-wire configuration with a factory-installed neutral and a rating of 240 V AC (250 V DC) with a 125 hp maximum motor rating. The NEMA 3R enclosure provides rain, dust, and sleet protection for reliable operation in harsh environments, and the galvanized steel housing supports durable outdoor installation. This safety switch accommodates three-phase power with four conductors (3P, 4W, 1N) and is used as a main disconnect or motor-control disconnect in industrial applications such as conveyors, pumps, and HVAC systems. As a heavy-duty fusible device in the Square D lineup, it is designed to house replaceable fuses for high-current protection while delivering a robust, code-aligned means to isolate equipment during maintenance or in fault conditions.