Square D H363 - 100A, 600V, 3-Phase, Switch

The Square D H363 is a rugged 100A, 600V, 3-Phase fusible switch engineered for reliable on/off isolation and robust overcurrent protection in demanding industrial and commercial environments. Designed to withstand daily switching duties, it keeps critical equipment safe while simplifying maintenance and service tasks.

Key specifications

• Model: H363
• Amperage: 100A
• Voltage: 600V
• Phase: 3-Phase

What makes this fusible switch unique

• Fits into tight electrical panels without sacrificing accessibility or performance, making it ideal for limited-space installations.
• Maintenance-friendly design: Engineered for straightforward fuse replacement and field servicing, reducing downtime during routine maintenance or fault clearing.
• Reliable isolation and protection: Combines solid on/off isolation with overcurrent protection to safeguard downstream motors, panelboards, and branch circuits.

Ideal applications

Specifically suited for motor disconnects, panelboards, and branch circuit protection where a compact, maintainable fusible switch is required. Typical scenarios include:

• Industrial production lines needing a dedicated motor disconnect that can be serviced quickly.
• Commercial or industrial panelboards where space is at a premium but reliable protection is non-negotiable.
• Feeder protection within electrical distributions, enabling safe power isolation during maintenance or troubleshooting.

Practical guidance and benefits

• By enabling prompt isolation and fuse-based overcurrent protection, it helps prevent damage to motors and downstream components during faults.
• Fast, predictable switching supports safer maintenance windows and minimizes production disruption.
• Compatibility considerations: Ensure the appropriate fusing accessories are selected per local codes and system requirements to maximize performance and safety.

Choose the Square D H363 when you need a dependable, space-conscious solution for 3-phase electrical service that blends easy maintenance with solid, proven protection. It’s a practical, purpose-built choice for serious industrial and commercial power distribution.