Square D QO380 - 80A, 3-Pole, Circuit Breaker

Meet the Square D QO380 — a dependable 80A, 3-Pole circuit breaker designed to safeguard three-phase electrical systems with precision. Built to endure in demanding environments, this unit delivers reliable overcurrent protection for critical circuits in panelboards, switchboards, and control panels.

Engineered for versatility across industrial, commercial, and OEM applications, the QO380 fits seamlessly into three-phase distribution setups, helping you maintain uptime and protect motors and feeders from overloads and faults.

Key features

• Current rating: 80A – robust protection for mid-range three-phase circuits.
• Poles: 3-Pole – ideal for three-phase distribution and motor-driven loads.
• Breaker type: Circuit Breaker – fast, reliable interruption of fault currents to prevent damage.
• Part of the Square D QO family, offering compatibility with standard QO panels and system components.
• Designed for use in panelboards, switchboards, and control panels, providing flexible mounting options in a compact footprint.

Why this matters

In any electrical installation, selecting the right protection device is about aligning protection with the load profile. The QO380’s 80A rating, combined with a three-pole design, provides targeted protection for three-phase feeders and motor circuits. By reliably interrupting fault currents, it helps reduce potential equipment damage, minimizes downtime, and supports safer startup and operation of drives and motors.

Ideal uses

• Industrial panelboards and switchboards handling three-phase loads
• Motor control centers where dependable feeder protection is essential
• Commercial distribution panels supporting HVAC, pumps, conveyors, and large machinery
• OEM equipment requiring a sturdy, standard-size protective device for three-phase systems

Technical snapshot: Current rating: 80A • Poles: 3-Pole • Breaker type: Circuit Breaker. For projects needing solid, three-phase overcurrent protection in a compact, reliable package, the Square D QO380 stands out as a precise, purpose-built choice.