Square D HU363A - 363A, Heavy Duty Non-Fusible Safety Switch

The Square D HU363A 363A Heavy Duty Non-Fusible Safety Switch is engineered for industrial and commercial environments that demand safe, reliable electrical isolation. This non-fusible disconnect delivers dependable disconnection under load while supporting robust lockout/tagout procedures, helping you maintain safe operations and maximize uptime.

Why the HU363A stands out

• Non-fusible design provides a straightforward disconnect without built-in fuses, ideal when your protection scheme uses external fuses or breakers.
• 363 A amperage rating handles heavy-duty loads with confidence, offering a solid isolation point for demanding equipment.
• Rugged, heavy‑duty construction built to withstand harsh industrial environments and frequent on/off cycles.
• Safe disconnection under load ensures equipment can be isolated without creating unsafe transients during maintenance or shutdowns.
• Lockout/tagout compatibility supports compliant, hands-free safety procedures to protect workers during service work.
• Trusted Square D quality a reliable name in electrical protection and control components for long-term peace of mind.

Ideal use cases

• Maintenance and service shutdowns on feeders, motors, and power distribution paths in manufacturing and processing facilities.
• Emergency isolation points in commercial installations where quick, reliable disconnection is critical.
• Permanent isolation for equipment that requires a robust, non-fusible disconnect with easy integration into lockout/tagout programs.
• Applications that rely on external protection schemes (fuses or breakers) with a dedicated, heavy-duty safety switch for safe operating limits.

Specifications at a glance

• Amperage rating: 363 A
• Product type: Heavy Duty Non-Fusible Safety Switch
• Brand: Square D
• Model: HU363A

In environments where reliable electrical isolation and strict safety procedures matter, the Square D HU363A delivers clear advantages: a rugged, high-capacity non-fusible switch that simplifies lockout/tagout compliance, reduces maintenance risk, and provides durable performance over the long term. If you’re sourcing a dependable disconnect for demanding industrial or commercial applications, the HU363A is built to meet the challenge with precision and confidence.