Square D QOB320PL Circuit Breaker, 20A, 3-Pole, 240V

The Square D QOB320PL is a 20A, 3-pole circuit breaker built for industrial electrical service, maintenance, and replacement projects. It’s commonly associated with the QO series, delivering dependable overcurrent protection for 240V, three‑phase circuits. Confirm compatibility by the part number QOB320PL to ensure it fits your panel and application requirements.

Key differentiators

• Three-pole protection for 240V, three-phase systems, ideal for motors, feeders, and other industrial loads
• 20 ampere rating provides precise, targeted protection for branch circuits in demanding environments
• Part of the trusted Square D QO family, designed for reliable performance in industrial panels
• Clear identification with the QOB320PL part number helps reduce procurement missteps during maintenance or replacement

Specifications at a glance

• Manufacturer: Square D
• Series: QO
• Part Number: QOB320PL
• Product Type: Circuit Breaker
• Amperage: 20 A
• Poles: 3
• Voltage: 240V

Ideal use cases

• Industrial control panels and machinery fed by 3‑phase 240V power
• Replacement installs within existing QO-series panels
• Motor circuits, conveyors, and other equipment requiring reliable overcurrent protection

Compatibility and installation guidance

To ensure a proper fit, verify both the part number and your application requirements. Check your panel labeling for QO-series compatibility and confirm that a 3‑pole, 240V configuration matches your system. When replacing, power down the equipment and follow standard electrical safety practices. If you need help confirming compatibility, message us and we’ll assist with matching QOB320PL to your specific application.