Square D D324N - 200A, Fused Safety Switch

The Square D D324N is a 200A fused safety switch crafted for demanding industrial and commercial environments where safe electrical isolation is non-negotiable. Designed to deliver dependable disconnection under load, this fused disconnect combines robust protection with straightforward operation, making maintenance and power shutdowns safer and faster.

Why the Square D D324N stands out

• 200A fused safety switch integrates overcurrent protection with a durable disconnect, helping protect downstream equipment and wiring from surge damage.
• Safe isolation for maintenance supports proper lockout/tagout procedures, enabling workers to secure circuits during service without ambiguity.
• Reliable under-load disconnection ensures power can be safely interrupted even while current is flowing, reducing arcing risks and downtime during servicing.
• Industrial-grade durability built to endure the rigors of busy facilities, with a design that stands up to daily wear, vibrations, and environmental demands.
• Serviceability and longevity field-replaceable fuses simplify routine maintenance and extend the life of your electrical system.

Ideal use cases

• Shutoffs and isolations for motors, conveyors, and other heavy equipment in manufacturing plants.
• Maintenance windows and safety lockdowns where a clear, verifiable disconnection is required.
• Panel and switchgear upgrades or retrofits in warehouses, data centers, and commercial facilities.
• Emergency or planned outages where reliable, controlled power interruption is essential.

What problems this solves

• Eliminates guesswork during service by providing a tangible, verifiable disconnect point.
• Reduces arc flash risk and equipment damage by ensuring a clean, under-load interruption.
• Speeds up maintenance cycles with replaceable fuses that minimize downtime.
• Supports safety compliance through proven lockout/tagout readiness.

Specifications at a glance

• Amperage Rating: 200A
• Product Type: Fused Safety Switch
• Brand: Square D
• Model: D324N

Designed for professionals who demand dependable electrical isolation without compromise, the Square D D324N delivers a clear, controlled disconnect you can trust in everyday operations and critical maintenance alike. If you’re upgrading safety, reliability, and uptime in your facility, this 200A fused safety switch is a purpose-built solution that aligns with real-world electrical safety needs.