Square D H321N - 30A, 240V, 3-Pole, Fused Disconnect Switch

Meet the Square D H321N, a rugged 30A, 240V, 3-Pole Fused Disconnect Switch built for safe, reliable electrical isolation in industrial and commercial environments. Designed to deliver dependable disconnection under load, it also supports proper lockout/tagout procedures to keep maintenance teams safe during service.

Why this fused disconnect stands out

• Three-pole configuration for solid 3‑phase isolation: Ensures each live line is clearly disconnected, protecting equipment and personnel in multi‑phase systems.
• Fused protection for reliable disconnection: The fused design provides overcurrent protection and a controlled shutdown when needed.
• Lockout/Tagout compatibility: Specifically designed to support safe maintenance practices and worker safety.
• NEMA 1 enclosure: Built for indoor installations, offering appropriate enclosure protection for controlled environments.
• Durable, long-term performance: Engineered for steady operation in demanding industrial and commercial settings, reducing downtime and maintenance fuss.

Ideal applications

• Motor control centers and feeders in manufacturing facilities
• Industrial equipment such as pumps, compressors, and conveyors
• HVAC control points and commercial electrical rooms needing a clear, safe shutdown

Technical specifications at a glance

• Amperage rating: 30A
• Voltage rating: 240V
• Number of poles: 3-Pole
• Enclosure rating: NEMA 1
• Product type: Fused Disconnect Switch
• Brand: Square D
• Model: H321N

Choose the Square D H321N for a dependable, purpose-built solution that prioritizes safety, straightforward maintenance, and consistent performance in 3-phase, 240V environments.