Square D H363NRB - 100A, 600V, 3-Pole, Fused Disconnect Switch

Engineered for critical isolation in demanding industrial and commercial environments, the Square D H363NRB 100A, 600V, 3-Pole Fused Disconnect Switch delivers dependable electrical isolation with built‑in overcurrent protection. Designed for safe maintenance and reliable operation under load, this unit supports proper lockout/tagout procedures and ensures a clean, definitive disconnect when service is required.

Why this fused disconnect stands out

• Three-pole configuration provides complete isolation of all conductors in a three-phase system, reducing arc risk and ensuring safe service work.
• Fused protection adds a robust layer of current overload protection, guarding downstream equipment and extending component life.
• High-capacity rating supports substantial loads with a 100A amperage rating, making it suitable for motors, pumps, conveyors, and other heavy-duty applications.
• Industrial-grade voltage handling rated up to 600V, matching the demands of larger facilities and equipment setups.
• Lockout/tagout compatibility designed to integrate with standard safety procedures, promoting worker safety during maintenance and servicing.
• Durable, reliable operation built to withstand daily use in busy environments, delivering dependable disconnection when needed.

Ideal applications and use cases

Best suited for facilities that rely on three-phase power and require clear, reliable isolation points for maintenance and fault clearance. Typical use cases include:

• Motor control centers and drive systems for manufacturing lines
• Industrial pumping stations and fluid handling equipment
• Conveyor systems, fans, and large HVAC units
• Critical processing equipment in warehouses and distribution centers

What you gain with the Square D H363NRB

Purchasing this fused disconnect switch means more than just a switch. It offers a clear and verifiable isolation method that supports safety compliance, minimizes risk during maintenance, and helps reduce unplanned downtime by providing a reliable under-load disconnect mechanism. Its three-pole design ensures that all phases are safely disconnected, giving technicians confidence when servicing complex equipment.

Specifications at a glance

• Brand: Square D
• Model: H363NRB
• Product Type: Fused Disconnect Switch
• Amperage Rating: 100A
• Voltage Rating: 600V
• Number of Poles: 3-Pole

When you need a reliable, three-phase isolation solution that couples safety with robust protection, the Square D H363NRB delivers. It’s a practical, no-nonsense choice for teams focused on safe, efficient electrical maintenance and dependable equipment protection.