Square D H324N Fusible Safety Switch Disconnect

Square D H324N is a 200-Amp, 240-Volt fusible safety switch disconnect designed for indoor, general-duty service in 3-phase systems. It provides a 3-pole, 4-wire (neutral) configuration in a NEMA 1 enclosure, enabling a safe isolation point for motors and equipment in commercial or light industrial environments. This heavy-duty disconnect is configured as a fusible safety switch, using replaceable fuses to protect downstream circuits and provide a visible isolation when opened. With a 200 A continuous rating and a 240 VAC supply (up to 250 VDC), it serves as a robust service disconnect for 3-phase loads, simplifying compliance with electrical codes in indoor applications such as manufacturing floors, machine rooms, pump stations, or utility rooms. The H324N variant is part of Square D’s line of heavy-duty safety switches, offering rugged construction and a dedicated isolation device for equipment protection and maintenance lockout procedures.