Square D HU363N - 100A, 600V, 3-Phase, Switch

The Square D HU363N is a rugged 3‑phase fusible switch engineered for dependable on/off isolation and precise overcurrent protection in demanding industrial and commercial settings. Rated at 100A and up to 600V, this switch is purpose-built for motor disconnects, panelboards, and branch circuits where a compact, maintainable solution is essential.

Why the HU363N stands out

• Three‑phase reliability: Designed to handle multi‑phase loads with consistent performance across motors and equipment.
• Fusible protection integrated with isolation: Provides both disconnect capability and overcurrent protection in a single, streamlined device.
• Compact, maintainable design: Space‑efficient footprint that’s easier to install, service, and replace fuse elements when needed.
• Rugged for tough environments: Built to withstand industrial and commercial use, delivering dependable operation where it matters most.
• Versatile application: Ideal for motor disconnects, panelboards, and branch circuit protection in a wide range of installations.

Practical use cases

• Motor disconnects on short- to mid-range industrial conveyors, pumps, and fans where a clear isolation point is required.
• Main or branch protection within electrical panelboards in manufacturing, processing, or facilities management settings.
• Emergency shutdown or service isolation in electrical rooms that demand quick, unambiguous de‑energization.
• retrofit or upgrade projects where a compact, maintainable fusible switch fits the existing footprint and protection strategy.

Technical snapshot

• Model: HU363N
• Amperage: 100A
• Voltage: 600V
• Phase: 3‑Phase

Who benefits from the Square D HU363N

Facilities managers, electrical contractors, and maintenance teams working in industrial facilities or commercial spaces that require reliable motor control and protection will find the HU363N to be a practical, durable choice. Its integrated protection and isolation simplify wiring topologies and maintenance routines, reducing downtime and keeping critical equipment up and running.

Choosing a proven solution

Compared to standalone breakers or less robust disconnects, the Square D HU363N delivers a dependable, space‑efficient solution with built‑in overcurrent protection tailored to mid‑sized systems. It’s a trusted option for facilities that prioritize safety, reliability, and ease of maintenance without sacrificing performance.