Siemens QA120AFCN 20A 1P 120V Circuit Breaker, AFCI, Combination AFCI, Plug-On Neutral, Plug-On | AmpState

The Siemens QA120AFCN 20A 1P 120V AFCI circuit breaker is built to elevate safety in your electrical distribution system. Designed for panelboards, load centers, and general distribution networks, this unit delivers reliable arc-fault protection while simplifying retrofits where part numbers need to stay consistent. If you’re upgrading older panels or planning maintenance, the QA120AFCN keeps your spare parts streamlined and ready.

Smart protection that fits real-world needs

• AFCI Combination protection detects both series and parallel arc faults, reducing the risk of arc-induced fires on living and working spaces.
• Plug-On Neutral design provides a clean, integrated neutral connection, helping to simplify retrofit installations and minimize wiring complexity.
• 20 A, 1-Pole, 120 V specifications cover common branch circuits in residential and light-commercial applications.
• Plug-On convenience enables faster swaps and replacements without sacrificing reliability.
• Part Number QA120AFCN ensures continuity for maintenance planning and easy identification during replacements.
• AmpState availability means you can source this Siemens AFCI breaker when you need it, reducing downtime on critical panels.

Who benefits from this AFCI breaker

• Electricians tackling panel upgrades or retrofits where arc-fault protection is required.
• Facilities managers maintaining electrical distribution in multi-zone environments.
• Homeowners looking to upgrade living-area circuits to modern arc-fault protection without changing the rest of the panel design.

Practical use cases and value

• Retrofit projects where preserving the exact part number simplifies ordering and reduces assembly risk.
• Living spaces with higher arc-fault risk—kitchens, family rooms, and home offices—where added protection provides peace of mind.
• New installations requiring reliable AFCI performance on dedicated 20A circuits within panelboards and load centers.

Specifications at a glance

• Manufacturer: Siemens
• Part Number: QA120AFCN
• Type: AFCI Combination, Plug-On Neutral
• Amperage: 20 A
• Poles: 1 Pole
• Voltage: 120 V
• Applications: Panelboards, Load Centers, Electrical Distribution

Need help matching this part to your exact panel or confirming compatibility? Message us and we’ll help you confirm fit. Upgrade your electrical protection with the Siemens QA120AFCN and enjoy dependable arc-fault safety backed by AmpState’s ready-to-ship availability.