Square D QO120VH - 20 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D QO120VH 20A, 120V, 1-pole Plug-In Circuit Breaker—a purpose-built solution for dependable branch circuit protection in panelboards and load centers. From AmpState, this compact molded‑case breaker is designed to install quickly and protect your circuits with precision, whether in a home, a small business, or light industrial setting.

Why this plug-in breaker stands out

• Fast plug-in connection for rapid installation and effortless replacement, minimizing panel downtime during upgrades or repairs.
• Thermal‑magnetic trip unit delivers stable, repeatable protection by combining temperature-based overload sensing with magnetic short-circuit protection—helping to prevent nuisance trips while reliably interrupting dangerous faults.
• OEM‑compatible design works with matching Square D load centers and panelboards, ensuring a clean, secure fit and consistent electrical performance.
• Versatile, single-pole protection for 120V circuits, ideal for branch circuits that run lighting, outlets, or other 120V devices in residential, commercial, and light industrial applications.

Technical snapshot

• Amperage: 20 A
• Voltage: 120 V
• Poles: 1-pole
• Mounting: Plug-in
• Type: Thermal-magnetic molded case circuit breaker
• Part: QO120VH

Practical applications and benefits

Designed to safeguard branch circuits, the QO120VH protects wiring and devices from overloads and short circuits, helping prevent fire hazards and equipment damage. Its plug-in format means you can upgrade or replace breakers without invasive panel work, preserving panel integrity and reducing service interruptions. This makes it an excellent choice for:

• Residential panels where reliable 120V circuit protection is essential for lighting and outlets
• Commercial spaces with multiple 120V lighting runs and power circuits
• Light industrial panels that require consistent, dependable protection for essential equipment

What makes it a smart choice

Beyond the basic specs, the Square D QO120VH delivers real-world value by pairing a fast, user-friendly plug-in installation with a robust thermal-magnetic trip mechanism. This combination provides predictable protection performance across fluctuating loads, reducing the likelihood of unexpected trips and enabling quick, straightforward servicing when needed. It’s the practical, durable option for professionals who insist on reliability in panel maintenance and upgrades.

When you need a trusted, single-pole 120V solution that fits seamlessly into compatible Square D panelboards and load centers, the QO120VH from AmpState is built to perform—from initial install through years of service.