Square D HU363 - 100A, 600V, Fused Safety Switch

Meet the Square D HU363 — a 100A, 600V fused safety switch engineered for demanding industrial and commercial environments where safe electrical isolation is non-negotiable. This device combines reliable fault interruption with straightforward lockout/tagout compatibility, delivering dependable disconnection under load while standing up to long-term use in harsh conditions.

Key advantages

• Fused protection provides fast, reliable interruption of fault current, helping to contain faults and protect downstream equipment.
• 100A, 600V capacity supports medium to larger electrical circuits typical in industrial and commercial settings.
• Lockout/Tagout readiness designed to support safe maintenance practices, ensuring personnel can de-energize equipment and stay safe during service.
• Durable construction built for long-term service in demanding environments, reducing replacement frequency and downtime.
• Safe disconnection under load enabling dependable isolation of circuits even when connected equipment is energized.
• Brand reliability from Square D, a trusted name in electrical protection and control solutions.

Ideal for

• Service disconnects for commercial panels and industrial distribution boards
• Maintenance points on manufacturing lines, packaging systems, and processing equipment
• Motor control centers and other hard-wiring applications requiring secure isolation
• Facilities that rely on rigorous lockout/tagout procedures to maintain safety standards

How it works

The HU363 integrates fused protection with a robust safety switch mechanism. When a fault occurs, the internal fuses interrupt current to prevent damage downstream. For routine maintenance or repairs, technicians can implement lockout/tagout devices to prevent re-energization, assured that the circuit remains isolated until work is complete.

Maintenance & safety tips

• Inspect fuses and connections regularly for signs of wear or damage, and replace only with the appropriate fuse type and rating.
• Use compatible lockout/tagout devices to ensure secure de-energization during service.
• Keep the enclosure clean and dry, and check mounting and hardware for signs of loosening or corrosion.
• Train personnel on proper operating and safety procedures to maximize the effectiveness of the fused safety switch.

Specifications

• Amperage rating: 100A
• Voltage rating: 600V
• Product type: Fused Safety Switch
• Brand: Square D
• Model: HU363