Square D QO2301021 - 30A, 2-Pole, Circuit Breaker

Meet the Square D QO2301021 — a 30A, 2-Pole Circuit Breaker designed to deliver dependable overcurrent protection in demanding electrical systems. This device is crafted for industrial, commercial, and OEM environments where safe operation and circuit protection matter most, whether in distribution panels, switchboards, or control panels.

With a two-pole configuration, this breaker protects paired hot lines and ensures simultaneous tripping on fault conditions, helping prevent unbalanced loads and protecting both conductors and connected equipment. The 30-amp rating provides precise protection for circuits with moderate to higher continuous loads, supporting reliable power distribution without unnecessary nuisance trips.

Key benefits

• Two-pole protection — ensures both hot legs trip together for safer, coordinated fault interrupting.
• Compact, panel-friendly design — built to fit in panelboards, switchboards, and control panels that use 2-pole breakers.
• Rugged, dependable performance — suitable for a wide range of industrial, commercial, and OEM applications where consistent protection is essential in distribution panels and motor control centers.
• Clear 30A current rating — precisely matched to circuits requiring reliable overcurrent protection without compromising space or workflow.
• Versatile use cases — ideal for protecting motors, lighting circuits, and general power distribution in both new installations and maintenance projects.

Who should consider this breaker

Electrical professionals, facilities managers, and OEM engineers who need a trusted, straightforward solution for dual-hot-line protection will appreciate the QO2301021. It’s a practical choice for panel builds, retrofits, and spare-part inventories where availability and predictability matter.

Practical guidance and best practices

• Confirm your enclosure or panel supports a 2-pole, 30A breaker to maintain proper protection coordination.
• When wiring terminals, follow standard torque practices to ensure secure connections and long-term reliability.
• Use this breaker in applications requiring simultaneous-trip protection for dual-hot circuits, such as 120/240V configurations feeding motors or inductive loads.

Technical snapshot: Current rating: 30A • Poles: 2-Pole • Breaker type: Circuit Breaker