Square D QO3030 - 30 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Elevate your panel protection with the Square D QO3030 30A, 120V, 1-Pole Plug-In Circuit Breaker—a dependable solution from AmpState for fast, safe, and reliable branch-circuit protection. Built to slot into common panelboards and load centers, this molded-case breaker delivers quick installation and long-lasting performance where it matters most.

Why the QO3030 Stands Out

• Fast plug-in connection enables quick installation and easy replacements, reducing downtime during maintenance or panel upgrades.
• Thermal-magnetic trip unit provides stable, repeatable protection for both overloads and short circuits, helping protect wiring and connected loads from damage.
• Single-pole, 30A at 120V design is ideal for circuit segments that demand robust protection without unnecessary complexity.
• Panelboard compatibility is designed to work with matching OEM load centers and panelboards, ensuring coordinated electrical performance within the QO family.
• Versatile applications suitable for residential, commercial, and light industrial environments, offering dependable protection across diverse setups.

Technical Snapshot

• Manufacturer: Square D
• Part Number: QO3030
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30A
• Voltage Rating: 120V
• Number of Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal Use Cases

Install this 30A, 120V single-pole breaker in residential panelboards to guard circuits feeding high-demand lighting runs or outlets, or in small commercial spaces to protect dedicated circuits without complicating the panel layout. The plug-in design shines during panel upgrades or retrofits, making it easier to swap in the QO series and maintain reliable protection with minimal downtime.

What to Expect in Practice

With the QO3030, you get predictable trip performance and straightforward maintenance. The fast plug-in connection reduces installation time, while the thermal-magnetic protection responds quickly and consistently to electrical faults. When paired with matching OEM panels, it delivers cohesive, dependable protection for everyday electrical workloads in homes, offices, and light industrial settings.

Compatibility and performance are built in—trust Square D’s QO line to keep your circuits safeguarded while you focus on the tasks that matter most.