Square D H364 - 200A, Fused Disconnect Switch

The Square D H364 200A Fused Disconnect Switch is engineered for demanding industrial and commercial environments where safe electrical isolation and reliable shutdowns matter most. Built to perform under load, this disconnect switch provides decisive power control while supporting essential lockout/tagout procedures, giving maintenance teams a trusted tool for safe servicing and routine shutdowns.

• 200A Amperage Rating: Designed to handle substantial electrical loads common in motors, conveyors, pumps, and other heavy equipment, delivering dependable isolation when it’s needed most.
• Fused Disconnection: The integrated fuse protection adds an extra layer of safety by interrupting fault currents, helping protect circuits and downstream equipment from damage during abnormal conditions.
• Lockout/Tagout (LOTO) Ready: Built to support proper LOTO procedures, enabling technicians to de-energize and safely lock out circuits during maintenance, reducing the risk of accidental re-energization.
• Industrial-Grade Durability: Designed for long-term use in busy facilities, with rugged construction that withstands the wear and tear of daily operation in industrial and commercial settings.
• Reliable Under-Load Disconnection: Optimized to provide clean, controlled disconnections even when circuits are energized, helping minimize arcing and improve overall electrical safety.
• Clear, Efficient Power Control: Simple actuation and straightforward integration into existing electrical distribution layouts, making routine isolation fast and predictable for technicians.

Use cases and ideal applications

Perfect for service entrances, equipment rooms, and healthily loaded distribution panels where frequent maintenance or emergency shutdowns are part of normal operations. Ideal for facilities with large motors, pumps, or HVAC systems that require a secure, code-aligned method to isolate power quickly without compromising safety.

Why this model stands out

The Square D H364 isn’t just a switch—it's a purpose-built safety solution that combines high-current capability with a fused design and integration-friendly form factor. While many disconnects offer basic isolation, this model emphasizes safe, controlled disconnection under load and seamless support for lockout/tagout workflows, helping facilities meet stringent safety standards while keeping downtime to a minimum.

Practical guidance for getting the most out of your Fused Disconnect Switch

Plan installations around routine maintenance cycles, ensuring technicians have easy access to the disconnect point for rapid de-energization. Pair the H364 with clearly labeled LOTO procedures and standard operating practices to maximize safety outcomes. For ongoing reliability, schedule periodic inspections of fuse elements and mounting hardware to maintain solid electrical continuity and protection.

Engineered by Square D, this 200A fused disconnect switch delivers a reliable, purpose-driven solution for isolating power in demanding environments—so teams can work with confidence, and facilities can maintain steady, safe operation.