Square D D322NRB - 60A, 240V, 3-Pole, General-Duty, Safety Switch, NEMA 3R

Meet the Square D D322NRB—a rugged, purpose-built safety switch that delivers reliable on/off isolation and targeted overcurrent protection in demanding industrial and commercial environments. With a 60A rating at 240V and a 3-Pole configuration, this switch is designed to handle three-phase motor control and electrical distribution with confidence.

Key features that set this switch apart:

• Fusible switch option for direct overcurrent protection and precise protection coordination within your electrical system.
• NEMA 3R enclosure for dependable outdoor and semi-exposed installations—resistant to rain, dust, and temperature variations.
• General-duty design tailored to everyday industrial, commercial, and service environments, delivering durable performance where it’s most needed.
• Compact, maintainable construction that simplifies installation, wiring, and field servicing without sacrificing safety or reliability.
• Three-pole configuration ensures clean disconnection of three-phase power, improving maintenance safety and system reliability.

Ideal applications include motor disconnects on production lines, protection for panelboards, and branch circuit isolation in warehouses, workshops, and equipment rooms. The D322NRB provides a robust, dedicated solution when a compact, reliable fusible switch is required to safeguard equipment and personnel.

Why choose this Square D safety switch over other disconnects? It combines a rugged general-duty build with a proven NEMA 3R enclosure, delivering dependable performance in real-world conditions while keeping installation straightforward. It’s a practical, purpose-built answer for facilities that need fast, safe isolation and reliable protection at the point of use.

Specifications at a glance:

• Model: D322NRB
• Amperage: 60A
• Voltage: 240V
• Poles: 3-Pole
• NEMA Rating: 3R
• Duty: General

Pro tips for installation and use: verify fuse/circuit protection alignment with your system’s upstream devices, ensure proper enclosure mounting for outdoor or semi-protected locations, and follow standard lockout/tagout procedures during maintenance to maximize safety and reliability.