Square D QO3015 - 15 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D QO3015 — a 15A, 120V, 1-Pole plug-in circuit breaker built to safeguard your electrical system with quick installation and reliable protection. Designed for use in panelboards and load centers, this molded-case breaker is a staple in homes, small offices, and light industrial setups.

• Fast plug-in connection for swift installation or replacement—minimizing panel downtime.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal overload sensing with magnetic short-circuit response—reducing nuisance trips on everyday loads.
• 1-pole, 15A, 120V configuration provides targeted branch-circuit protection for lighting, outlets, and general-purpose circuits.
• Molded-case, plug-in design compatible with matching OEM load centers and panelboards—ensuring a clean, secure fit with Square D QO panels.
• Versatile applications ideal for residential, commercial, and light industrial environments requiring dependable overcurrent and short-circuit protection.

What makes the QO3015 stand out is its alignment with the Square D QO family: you get a proven protection solution that installs quickly, fits your existing panelboard, and provides predictable trip behavior when a fault occurs. Whether you're upgrading an older panel, stocking a replacement for routine maintenance, or building out a new electrical subpanel, this 15A, 120V plug-in breaker keeps circuits safe and accessible.

Specifications at a glance

• Manufacturer: Square D
• Part Number: QO3015
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 15 A
• Voltage: 120 V
• Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Notes for installation: While this unit is designed for straightforward plug-in use, ensure compatibility with your specific panelboard model and bus arrangement. For safety and compliance, have a licensed electrician perform installations or replacements in accordance with local electrical codes.