Square D PQ-4610G - 100A, 480V, 3-Pole, Switch

The Square D PQ-4610G is a rugged three-pole disconnect switch engineered for reliable on/off isolation and integrated overcurrent protection in demanding industrial and commercial environments. With a 100A rating and 480V capability, it provides a compact, dependable solution for three-phase power control where space and maintenance simplicity matter.

• Three-pole, 100A at 480V delivers complete phase isolation for motor circuits and three-phase loads, reducing the risk of partial energization during service or startup.
• Fusible switch design combines disconnect functionality with protective fusing in a single, compact unit—streamlining panel installations and field maintenance.
• Compact, maintenance-friendly form factor supports tight electrical rooms and easy fuse access, enabling quicker servicing and reduced downtime.
• Versatile application ideal for motor disconnects, panelboards, and branch circuit protection where a durable, space-efficient switch is needed in 480V systems.
• Rugged reliability built to withstand industrial environments, delivering dependable performance in continuous operation and infrequent maintenance scenarios.

Why this matters in real-world installations

In facilities with multiple motors or three-phase equipment, the PQ-4610G offers a single, integrated solution that handles both isolation and protection. This means less clutter in electrical rooms, fewer interconnects to manage, and a clear, auditable path for maintenance teams during service. The three-pole configuration ensures all lines trip together, enhancing safety and protecting surrounding equipment from phase-to-phase faults.

Ideal use scenarios

• Motor drive stations and pump rooms where a reliable disconnect is required before maintenance or startup
• Panelboards that need integrated protection for branch circuits in 480V setups
• remodels or new builds in industrial and commercial facilities seeking a compact, maintainable fusible switch

Specifications at a glance

• Model: PQ-4610G
• Amperage: 100A
• Voltage: 480V
• Poles: 3-Pole

Practical tips for installation and use

• Choose appropriate fuse elements matched to motor horsepower and starting characteristics to ensure coordinated protection without nuisance blowing.
• Mount in a protected, accessible location to enable straightforward fuse replacement and visual inspection of the switch position.
• Plan wiring with clean, organized terminations to minimize contact resistance and maximize reliability over the switch’s service life.
• Document the disconnect point in your electrical drawings to facilitate quick fault isolation during maintenance or emergencies.

For teams building or upgrading 480V electrical commons, the Square D PQ-4610G provides a purpose-built, space-conscious solution that pairs dependable isolation with overcurrent protection in a single, manageable unit. It’s well suited for OEM integrations, retrofit projects, and new installations where a compact, rated fusible switch is required to protect motors, panelboards, and branch circuits.