Square D H364N - 200A, 600V, 3-Pole, Fused Disconnect Switch

Meet the Square D H364N 200A, 600V, 3-Pole Fused Disconnect Switch—engineered for dependable electrical isolation in challenging industrial and commercial environments. This fused disconnect is purpose-built to support safe lockout/tagout procedures while delivering a clean, reliable disconnection under load. When uptime and safety matter, the H364N stands up to demanding service conditions with steady performance and long‑term durability.

Key advantages

• 200A amperage rating provides robust protection for mid‑ to large‑sized electrical distributions without overtaxing the switch.
• 600V voltage rating suitable for a wide range of three‑phase systems typical in industrial facilities.
• 3‑Pole design ensures complete isolation of all three phases, enhancing safety during maintenance and service work.
• Fused disconnect combines isolation with overcurrent protection, enabling quick response to faults and reducing system risk.
• Lockout/Tagout compatibility supports compliant, safer maintenance procedures, minimizing unexpected energization.
• Durable, reliable disconnection under load—designed to perform when it matters most, helping prevent downtime and equipment damage.

Why this fused disconnect switch matters

The H364N isn’t just a switch; it’s a proactive safety and reliability solution for electrical systems that require definitive, under-load disconnection. By combining a robust fuse-based protection scheme with uncompromising isolation across all three phases, it reduces risk during maintenance, enables quick fault isolation, and supports consistent operational uptime in demanding environments.

Ideal applications and use cases

• Industrial facilities with three‑phase equipment such as conveyors, pumps, grinders, and industrial fans that demand safe disconnect during service.
• Commercial installations where reliable isolation is critical for routine maintenance, repairs, or system upgrades.
• Control panels and motor control centers that require a dedicated fused disconnect to section power for safe work.
• Maintenance downtime planning where lockout/tagout procedures are standard practice for employee safety.

What to expect when you choose the H364N

• Clear, decisive isolation that minimizes arc flash risk during de-energization.
• Consistent performance across varying load conditions, supporting equipment longevity and predictable maintenance windows.
• Seamless integration into existing electrical architectures that rely on standard 600V, three‑phase distribution.

Designed for professionals who value safety, reliability, and long-term performance, the Square D H364N 200A, 600V, 3-Pole Fused Disconnect Switch is a practical, no‑nonsense choice for industrial and commercial power systems. It’s the dependable solution for clean isolation, safer maintenance, and steady, continuous operation.