Square D H364 - 200A, 240V, 3-Pole, Fused Disconnect Switch

The Square D H364 200A, 240V, 3-Pole Fused Disconnect Switch is built for serious indoor applications where safe, reliable electrical isolation is non-negotiable. With a NEMA 1 enclosure designed for dry, indoor environments, this switch provides dependable disconnection under load and supports rigorous lockout/tagout procedures to protect maintenance personnel and equipment.

• Amperage rating: 200A
• Voltage rating: 240V
• Poles: 3-Pole for true three-phase isolation
• Enclosure: NEMA 1 for indoor, dry locations
• Type: Fused Disconnect Switch
• Brand/Model: Square D H364

How this disconnect switch adds value to your electrical system:

• Enhanced safety through controlled isolation. The fused design ensures current interruption happens in a predictable, controlled manner, reducing the risk of unintended energization during maintenance.
• Compliance with lockout/tagout protocols. The H364 is purpose-built to support safe, verifiable de-energization, helping facilities stay compliant during service work.
• Reliable performance in demanding environments. Engineered for long-term durability in industrial and commercial settings, it stands up to frequent operation and routine maintenance cycles.
• Three-phase readiness. A true 3-pole configuration isolates all hot conductors, ensuring complete disconnection for three-phase circuits.

Ideal use cases include service entrances, motor feeder circuits, and indoor electrical rooms where disciplined isolation and dependable fault interruption are essential. If you manage an industrial or commercial electrical system that requires a compact, rugged, and compliant fused disconnect switch, the Square D H364 delivers clear advantages over generic disconnect options by combining robust safety features with straightforward installation in a dry indoor environment.

Specification-driven, purpose-built, and backed by Square D’s reliability, the H364 is the practical choice when safety, compliance, and long-term operation matter most. Add it to your electrical lineup to ensure accurate, safe isolation for maintenance windows, upgrades, or routine shutdowns.