Square D H321NRB - 30A, 240V, 3-Pole, Fused Disconnect Switch

When dependable electrical isolation is non-negotiable, the Square D H321NRB 30A, 240V, 3-Pole Fused Disconnect Switch delivers clean, controlled shutdowns exactly where you need them. Built for industrial and commercial environments, this switch combines robust fused protection with a rugged 3-Pole design to keep your equipment and personnel safe during maintenance and emergencies.

Key advantages that set the H321NRB apart

• Three-pole, 240V design ensures reliable isolation for three-phase systems, simplifying integration with existing equipment and controllers.
• 30A amperage rating provides precise overcurrent protection while supporting a wide range of motors, pumps, conveyors, and other industrial loads.
• Fused disconnect delivers dependable disconnection under load, reducing arc exposure and helping protect downstream circuitry during fault conditions.
• NEMA 3R enclosure equips the unit for outdoor and harsh environments, delivering weather resistance and durable performance in real-world sites.
• Lockout/Tagout compatibility supports safe maintenance procedures, helping meet stringent safety protocols and minimize downtime.
• Long-term durability engineered for heavy use in demanding industrial settings, providing consistent performance over time.

Perfect applications

• Outdoor or indoor equipment areas where reliable isolation is critical—think motors, HVAC systems, conveyors, and process machinery.
• Maintenance and servicing environments requiring strict lockout/tagout to prevent accidental re-energization.
• Industrial facilities and commercial sites that need a sturdy, weather-resistant disconnect with per-phase protection.

What you get with the Square D H321NRB

• A high-performance fused disconnect switch designed for dependable, orderly shutdowns
• Clear, immediate isolation of three-phase circuits at 240V
• Rugged construction that stands up to daily use and outdoor exposure
• Seamless compatibility with safety practices that rely on lockout/tagout procedures

Invest in the Square D H321NRB to enhance equipment safety, reduce downtime during maintenance, and ensure reliable disconnection when it matters most. Ideal for facilities that demand durable, efficient, and compliant electrical isolation in demanding environments.