Schneider Electric D324N Fusible Disconnect Switch

The Schneider Electric D324N is a 200 A, three-pole, 240 V fusible disconnect switch from Square D, designed for indoor general-duty service isolation in residential and light commercial installations. It uses a four-wire configuration (three hot conductors plus a neutral) inside a NEMA Type 1 enclosure, enabling safe servicing and straightforward integration with 240 V, three-phase equipment, and it operates as a single-throw safety switch with a clear off position for all three phases and the neutral when required. Aimed at durability and economy, this indoor disconnect is commonly used to isolate motors, pumps, and other load equipment in 3P 240 V systems, providing fusible overcurrent protection without complex control hardware, which helps simplify maintenance and NEC compliance in typical indoor installations. In Schneider Electric's general-duty safety switch lineup, the D324N is marketed as a reliable, straightforward disconnect option for indoor applications where space, cost efficiency, and simple operation matter.