Square D HU363 - 100A, 600V, 3-Pole, Switch

Meet the Square D HU363 — a rugged 100A, 600V, 3-Pole switch engineered for dependable on/off isolation and overcurrent protection in demanding industrial and commercial environments. Designed as a compact, maintainable fusible switch, it delivers precise control and robust protection for your three-phase systems.

Key specifications

• Model: HU363
• Amperage: 100 A
• Voltage: 600 V
• Poles: 3-Pole

Why it matters for your installation

The HU363 provides reliable on/off isolation paired with overcurrent protection, making it an essential component in tough environments where motor control and circuit protection must work in harmony. With a 3-pole design, it safely controls all phases in a three-phase system, reducing the risk of partial energization during maintenance and startup.

Ideal use cases

• Motor disconnects in industrial equipment or production lines
• Panelboards where space-saving, maintainable isolation is needed
• Branch circuit protection in commercial and light industrial applications

What sets it apart

• Compact footprint fits tighter panels and enclosures without sacrificing performance
• Robust isolation ensures safe maintenance and reliable fault containment
• Maintenance-friendly design facilitates quick inspection and serviceability
• Three-phase readiness—a true 3-Pole switch that coordinates all phases for safe shutdown
• Brand reliability from Square D, a name you can trust for industrial electrical protection

Practical tips for deployment

Use the Square D HU363 in 600V distribution schemes where a compact, fusible switch is required for motor control and branch-circuit protection. Verify enclosure compatibility and mounting arrangements, and pair the switch with appropriate fusing per your local electrical codes. Regularly inspect contact wear and ensure secure, rated connections to maintain optimal performance over time.