Square D D324N - 200A, 240V, Fused Disconnect Switch

Square D D324N is a rugged fused disconnect switch built for industrial and commercial environments that demand safe, reliable electrical isolation. With a 200 A, 240 V rating, this model delivers dependable disconnection under load while seamlessly supporting lockout/tagout procedures to keep maintenance teams protected.

Key advantages that matter in the field

• High-current capability — 200 A at 240 V handles substantial feeders and motor circuits, reducing the need for multiple protective devices.
• Integrated fuse protection — built-in fuses provide immediate overcurrent protection and clean interruption, helping to safeguard downstream equipment.
• Lockout/Tagout compatibility — designed to accommodate padlocks and safety tags, enabling compliant, hands-off servicing and reduced risk during maintenance.
• Durable, long-term reliability — engineered to withstand demanding industrial environments, delivering consistent performance over time.
• Safe disconnection under load — engineered to interrupt circuits cleanly even when equipment is energized, minimizing exposure and risk during servicing.

Ideal use cases

Perfect for industrial plants and commercial facilities where large feeders or motorized loads require a dedicated isolation point. Use the D324N as a main disconnect for feeders from a distribution panel, as a service-entry disconnect, or as a dedicated isolation switch within motor control centers and protective panels.

What makes it a smart choice

Compared to non-fused disconnects, the D324N combines interrupt capability with built-in overcurrent protection, simplifying panel design and reducing component counts. Its compatibility with standard lockout/tagout practices helps facilities maintain rigorous safety standards without compromising on turnaround times during maintenance.

Installation and practical tips

Plan with the model name in mind: Square D D324N, 200 A, 240 V, fused disconnect switch. Ensure proper fuse selection and mounting per applicable electrical codes, and confirm that the disconnect location allows clear visibility of switch position. Pair with compatible fuses and enclosures for a clean, dependable installation that supports ongoing safety and reliability.

Choose the Square D D324N when you need a robust, safety-focused solution that delivers rapid, secure isolation for high-demand electrical systems.