Square D Q0320 - 20A, 3-Pole, Circuit Breaker

The Square D Q0320 - 20A, 3-Pole, Circuit Breaker is a purpose-built protection device engineered for dependable overcurrent safeguarding in three-phase electrical systems. Built by Square D, a trusted name in power distribution, this breaker delivers consistent performance in demanding environments such as panelboards, switchboards, and control panels.

Why the 3-Pole, 20A design matters

A three-pole configuration protects all three conductors in a single, compact unit, ensuring balanced protection across each phase of a three-phase circuit. With a 20A rating, this breaker is well-suited for feeders, motor controls, and other non-resistive loads common in industrial and commercial applications. The result is coordinated, reliable interruption when overcurrent conditions arise, helping minimize equipment damage and downtime.

Key Features and Benefits

• Current rating: 20A — precise protection for typical three-phase loads without nuisance trips.
• Poles: 3-Pole — integrated protection for all three phases in a single device, simplifying wiring and panel layout.
• Circuit breaker type — a robust, field-proven mechanism designed for continuous service in demanding environments.
• Versatile installation — ideal for use in panelboards, switchboards, and control panels across industrial, commercial, and OEM applications.

Ideal For

• Industrial distribution panels where reliable three-phase protection is critical for motor drives and machinery
• Commercial electrical panels requiring compact, dependable overcurrent protection
• OEM assemblies and custom control centers needing a proven Square D protection solution

Practical Use Scenarios

• Protecting three-phase feeders feeding motors and contactors in a compact control panel
• Safe, predictable interruption for shared-distribution circuits in switchboards
• Replacement or expansion scenarios where consistent performance and compatibility with Square D systems are important

Choosing the Square D Q0320 means opting for a protection device that aligns with established distribution practices while delivering tangible benefits in uptime and safety. Its three-pole design and 20A rating offer a clear, purpose-built solution for managing overloads in three-phase systems, helping you maintain reliable operation across your distribution panels and motor control centers.