Square D HU363RB - 100A, Non-Fusible Disconnect Switch

Meet the Square D HU363RB, a 100A non-fusible disconnect switch engineered for demanding industrial and commercial environments. This purpose-built switch provides safe, reliable electrical isolation, making maintenance and service work faster and more predictable. With a design that delivers dependable disconnection under load, it supports proper lockout/tagout procedures and helps keep your team secure during routine or emergency interventions.

Key features

• 100A electrical rating — robust enough for feeder and branch circuit isolation in busy facilities.
• Non-fusible design — a fuse-free path to disconnect power, simplifying maintenance and reducing downtime.
• Lockout/tagout readiness — engineered to accommodate standard padlocks and tags, supporting safe, compliant servicing.
• Under-load disconnection reliability — engineered to provide clean, dependable isolation even when circuits are energized.
• Durable construction — built to withstand the rigors of busy industrial and commercial environments, delivering long-term durability.
• Easy integration — designed for straightforward installation within standard switchgear footprints and disconnect panels.

Why this matters for your operation

When maintenance windows are tight and safety is non-negotiable, the HU363RB delivers. Its fuse-free approach means less downtime and fewer replacement steps, while its lockout/tagout compatibility gives technicians a clear, auditable path to safely isolate equipment. By ensuring reliable disconnection under load, it reduces the risk of unexpected energization during service, helping you meet safety standards without sacrificing productivity.

Ideal use cases

• Service disconnects for large motors, MCCs, distribution panels, and other equipment where a non-fusible solution is preferred.
• Maintenance and troubleshooting where a secure, lockable isolation point is required.
• Temporary power shutdowns for testing and diagnostic work in industrial facilities and commercial buildings.

Technical specifications

• Amperage rating: 100A
• Product type: Non-Fusible Disconnect Switch
• Brand: Square D
• Model: HU363RB

Practical tips for getting the most out of your HU363RB

• Plan lockout/tagout procedures around the switch location to ensure quick, compliant maintenance windows.
• During installation, verify mounting and wiring align with your existing disconnect panel footprint to minimize downtime.
• Schedule regular visual inspections for signs of wear or mounting looseness to maintain dependable performance over time.

Choose the Square D HU363RB when you need a dependable, fuse-free disconnect that supports safe maintenance, clear lockout/tagout practices, and reliable de-energization in demanding environments.