Square D QO115CP - 15 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D QO115CP: a compact, dependable 15-amp, 120-volt, 1-pole plug-in circuit breaker designed to safeguard your most vital circuits. Built for quick installation and reliable protection, this molded case breaker slides into compatible panelboards and load centers with ease, helping you reduce downtime during upgrades, maintenance, or panel servicing.

Why the QO115CP stands out

• Fast plug-in connection for rapid installation or replacement — minimize service time and avoid the hassle of re-wiring. It’s a straightforward drop-in solution that keeps your electrical work on track.
• Thermal-magnetic trip unit delivers stable, repeatable protection. The thermal element tracks current over time while the magnetic element kicks in during short circuits, providing consistent trip curves across typical operating conditions.
• OEM-compatible design crafted to pair with matching Square D QO load centers and panelboards, ensuring a clean fit, reliable operation, and long-term performance.
• Versatile applications suitable for residential, commercial, and light industrial circuits — from lighting and receptacle runs to small equipment feeders.

What problems this breaker solves

Overcurrent and short-circuit events can threaten equipment and create dangerous conditions. The QO115CP offers precise protection targeted to 15-amp branch circuits, preventing nuisance trips while ensuring quick response when faults occur. Its plug-in design reduces service interruptions, and its robust thermal-magnetic mechanism maintains dependable protection even as ambient temperatures shift or loads fluctuate.

Ideal use cases

• Residential panelboards guarding individual lighting or receptacle circuits
• Small commercial subpanels powering offices, retail displays, or service rooms
• Light industrial equipment feeders where quick replacement and reliable protection are essential
• Retrofits and panel upgrades where a matching QO-series breaker is desired for code-compliant protection

How it integrates into your system

The QO115CP is designed for straightforward maintenance and future-proofing. Its plug-in mounting style means you can remove and replace it with minimal tools, while its 1-pole, 120V configuration targets common single-phase circuits found in everyday buildings. When paired with compatible Square D load centers, you get a cohesive protection scheme with predictable performance and clear trip characteristics.

Technical specifications

• Manufacturer: Square D
• Part Number: QO115CP
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 15A
• Voltage Rating: 120V
• Number of Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Whether you’re upgrading a home panel, outfitting a small office, or maintaining a light industrial footprint, the Square D QO115CP delivers precise protection with installer-friendly credentials. It’s a practical, purpose-built choice for reliable, code-conscious electrical protection that you can trust when every circuit matters.