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

The Square D H364N is a robust 200A, 3-pole fused disconnect switch designed for reliable electrical isolation in demanding industrial and commercial environments. Built to support proper lockout/tagout procedures, it provides safe, dependable disconnection under load and long-term durability for everyday operation.

Why this fused disconnect stands out

• High current capability: 200 A rating handles substantial motor loads and feeders with confidence.
• Three-pole isolation: Simultaneous switching of all phases ensures complete, safe de-energization of equipment.
• Integrated fuse protection: The fused design delivers both isolation and overcurrent protection in a single, compact unit.
• NEMA 1 enclosure: Suitable for indoor installations where basic protection against dust and incidental contact is required.
• Durable, maintenance-friendly design: Built to withstand the rigors of daily industrial use while supporting straightforward service and replacement.
• LOTO compatibility: Designed to support lockout/tagout procedures, helping ensure maintenance safety and regulatory compliance.

Ideal applications and use cases

• Service disconnects for large motors, conveyors, pumps, and HVAC equipment in manufacturing plants and facilities.
• Primary isolation point in distribution or panel setups where quick, reliable shutdown is essential.
• Upgrade or retrofit projects where fused protection is required for safety and code compliance.

What sets it apart from alternatives

Unlike non-fused disconnects, the H364N combines isolation with overcurrent protection in a single device, simplifying wiring, improving safety, and ensuring immediate protection for downstream circuits. Its three-pole architecture guarantees that all phases are safely disengaged, reducing the risk of arc flash or partial energization during maintenance.

Specifications at a glance

• Amperage Rating: 200 A
• Poles: 3-pole
• Enclosure Rating: NEMA 1
• Product Type: Fused Disconnect Switch
• Brand: Square D
• Model: H364N

For reliable, code-compliant electrical isolation in demanding environments, the Square D H364N delivers decisive performance. Add it to your project to ensure safe maintenance, dependable disconnection, and durable operation in indoor applications.