Square D QO310 - 10 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D QO310 — a 10A, 240V, 3-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit protection for panelboards and load centers. Built to handle the demands of residential, commercial, and light industrial environments, this unit provides focused protection where you need it most.

Designed for fast, reliable service, the QO310 uses a plug-in connection that simplifies installation and streamlines replacements. Its thermal-magnetic trip unit provides stable, repeatable protection across a wide range of operating conditions, helping to prevent nuisance trips while guarding against dangerous short circuits.

• Fast plug-in connection: Quick installation and easy replacement minimizes downtime.
• Thermal-magnetic trip: Delivers predictable protection for both overloads and short circuits.
• Three-pole, 240V configuration: Suitable for protecting 240V circuits with multiple conductors.
• OEM-compatible design: Compatible with matching Square D OEM load centers and panelboards for a seamless fit.
• Versatile applications: Ideal for residential, commercial, and light industrial electrical protection needs.

Technical snapshot

• Manufacturer: Square D
• Part number: QO310
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 10A
• Voltage rating: 240V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Use the Square D QO310 to safeguard critical 240V branch circuits in panelboards and load centers. It’s well-suited for circuits powering lighting, receptacles, small equipment, HVAC controls, and other 240V loads in light commercial or residential installations. Its compact plug-in design makes it a practical choice for upgrades, maintenance, or new installations where reliable, space-efficient protection is required.

Why this breaker stands out

Beyond basic specs, the QO310 offers a concrete value proposition: rapid plug-in installation, precise thermal-magnetic protection, and guaranteed compatibility with Square D QO panel systems. This combination provides a reliable, low-downtime solution for maintaining electrical safety and system uptime across diverse settings.

Choose the Square D QO310 to ensure robust 240V protection with a straightforward, plug-in approach that keeps your panel servicing streamlined—and trust AmpState as the source for this dependable protection device.