Square D QOB330 - 30A, Circuit Breaker

Meet the Square D QOB330 30A circuit breaker — a dependable, purpose-built solution for protecting your electrical systems with precise overcurrent protection. Engineered for real-world industrial, commercial, and OEM environments, this 30A breaker fits seamlessly into panelboards, switchboards, control panels, and OEM equipment, safeguarding critical equipment and keeping operations running smoothly.

• Current rating: 30A — confident protection against overloads and short circuits in distribution panels and motor control centers.
• Breaker type: Circuit Breaker — a fundamental, fast-acting safeguard designed for reliable interruption when electrical faults occur.
• Ideal applications: Panelboards, switchboards, control panels, and OEM equipment in industrial and commercial settings.

What makes the QOB330 uniquely valuable is how it supports safety and uptime in demanding environments. It’s proven to integrate into existing Square D ecosystems, delivering consistent performance where dependable protection and safe operation are non-negotiable. Whether you’re outfitting a new distribution panel, retrofitting a control center, or equipping OEM machinery, the QOB330 offers a straightforward, robust solution that reduces downtime and protects expensive equipment.

Recommended use cases and scenarios

• New installations in industrial facilities where reliable 30A protection is required for distribution panels and motor control centers.
• OEM equipment builds that demand a trusted Square D circuit breaker with clear, unambiguous protection characteristics.
• Commercial electrical cabinets and control panels where precise current limiting helps maintain safe and stable operation.

Practical considerations for installation and maintenance

• Verify compatibility with your existing panel or switchboard configuration and follow applicable electrical codes during installation.
• Integrate as part of a coordinated protection strategy to minimize nuisance trips and maximize equipment uptime.
• Plan for routine inspection of connections and enclosure integrity to sustain long-term performance in challenging environments.