Square D D324NRB - 200A, 240V, 3-Pole, Fused Safety Switch

Meet the Square D D324NRB—an exceptionally rugged fused safety switch built for industrial and commercial environments where dependable electrical isolation matters most. With a 200 A rating at 240 V and a 3-pole design, this device delivers complete, simultaneous isolation of all conductors, reducing arc-flash risk and enabling safer maintenance workflows.

Why the D324NRB stands out

• Three-pole isolation: Ensures all phases are opened together for full electrical disconnection, improving safety during servicing and troubleshooting.
• Fused protection: Integrated fuses provide immediate overcurrent protection and fault isolation, supporting safer system behavior without requiring additional protective devices.
• Lockout/tagout readiness: Designed to accommodate lockout/tagout procedures, helping facilities meet strict safety protocols during maintenance and inspections.
• Durable industrial design: Built to withstand demanding environments, delivering reliable performance over the long term in both manufacturing floors and commercial facilities.

Ideal use cases

Perfect for motor feeders, process lines, and service disconnects where secure isolation is critical. Whether you’re configuring a new motor control center, updating a control panel, or performing routine maintenance, the D324NRB provides a trusted, straightforward solution for safe energy isolation.

Operational benefits

• Rapid, dependable disconnection under load reduces downtime during servicing.
• Clear separation of all conductors simplifies safe lockout/tagout procedures for technicians.
• Robust construction minimizes wear and the need for frequent replacements in busy facilities.

Specifications at a glance

Amperage Rating: 200A • Voltage Rating: 240V • Number of Poles: 3 • Product Type: Fused Safety Switch • Brand: Square D • Model: D324NRB