Square D H363RB - 100A, 600V, 3-Pole, Fused Safety Switch

The Square D H363RB is a high-performance 3-pole fused safety switch crafted for demanding industrial and commercial environments where safe, reliable electrical isolation is non‑negotiable. With a 100 A rating and a 600 V maximum, this unit delivers dependable disconnection for three-phase systems while supporting proper lockout/tagout procedures to protect maintenance personnel.

Key specifications

• Amperage rating: 100 A
• Voltage rating: 600 V
• Number of poles: 3-Pole
• Product type: Fused Safety Switch
• Brand: Square D
• Model: H363RB

Why this fused safety switch stands out

Unlike basic disconnects, the H363RB integrates fuse protection to quickly isolate and guard against overcurrents, helping protect motors, drives, and downstream equipment. The 3-pole design ensures all three live conductors are disconnected together, reducing arc‑flash risk during servicing and simplifying compliance with safety protocols.

• Under-load disconnection: dependable shutoff even while circuits are energized, enabling controlled fault containment and safer maintenance windows.
• Lockout/tagout compatibility: built to accommodate standard padlocks and tags, supporting rigorous industrial safety procedures.
• Durable industrial construction: engineered to withstand the rigors of heavy-use facilities, with components designed for long-term reliability.
• Easy integration: fits common electrical architectures, making retrofits and new installations straightforward.

Ideal use cases

• Three-phase motors, conveyors, and pumps in manufacturing floors and processing plants
• Power distribution panels in commercial facilities requiring robust isolation
• Maintenance shutdowns and servicing events where controlled energy isolation is critical
• Large HVAC and mechanical systems that demand a fuse-protected, safe disconnect

Practical guidance for maximum safety and performance

Pair the H363RB with correctly rated fuses to maintain intended protection. Regularly inspect fuse elements and the switch contacts, and ensure maintenance personnel follow established lockout/tagout procedures to keep equipment safe and downtime minimal. This fused safety switch is a reliable choice for facilities that prioritize durable protection, quick isolation, and clear, compliant safety practices.

Equip your system with the Square D H363RB to deliver immediate, reliable isolation, enhanced safety during servicing, and durable performance across demanding industrial environments. Add it to your cart today to strengthen your facility’s electrical safety and reliability.