Siemens QA115AFCNCSA - 15 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Siemens QA115AFCNCSA — a compact, plug‑in safeguard for your electrical system. At 15 A and 120 V, this 1‑pole molded case circuit breaker is built to shield residential, commercial, and light industrial circuits from overcurrent and short circuits with dependable performance when it matters most.

• Fast, plug‑in installation: Seamless connection to compatible panelboards and loadcenters minimizes downtime during upgrades or service calls—no complex wiring, just reliable protection.
• Thermal‑magnetic trip unit: Combines temperature‑based protection with magnetic fast‑trip for consistent, repeatable response to overloads and fault conditions, reducing nuisance trips while delivering quick isolation when faults occur.
• 1‑pole, 15A design: Ideal for safeguarding individual branch circuits such as lighting, receptacle runs, and everyday loads within homes and small commercial spaces.
• OEM‑ready compatibility: Specifically designed to pair with matching Siemens OEM loadcenters and panelboards, ensuring coordinated protection and straightforward serviceability.
• Targeted protection, broad applicability: Prevents damage to wiring and connected equipment, supporting safer, more reliable electrical systems in a range of environments.

Technical snapshot

• Manufacturer: Siemens
• Part number: QA115AFCNCSA
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage rating: 15 A
• Voltage rating: 120 V
• Number of poles: 1
• Mounting style: Plug‑in
• Application: Branch circuit overcurrent and short‑circuit protection

Who should consider this breaker?

• Homeowners upgrading or replacing aging breakers in main or subpanels where quick, reliable protection is essential.
• Facility managers wiring lighting and general power circuits in small offices, retail spaces, or light manufacturing environments.
• Electricians seeking a plug‑in solution that simplifies maintenance and supports fast replacement without compromising safety.

Practical tips for optimal use

• Pair this 15 A unit with its corresponding Siemens loadcenter for guaranteed compatibility and consistent protection characteristics.
• Keep a few spare plug‑in breakers on hand to reduce downtime during routine maintenance or circuit work.
• Store in a dry, clean environment to preserve the integrity of the molded case and electrical contacts for long‑term reliability.