Siemens QA115AFC 15-Amp Single Pole AFCI Breaker - 120V, LED Trip Indicators

Overview

The Siemens QA115AFC is a 15-amp, single-pole circuit breaker designed for 120-volt panels. It belongs to the Combination AFCI family, meaning it guards against both high-energy parallel arcing and lower-energy series arcing in downstream wiring, cords, and power supplies. This device is not a GFCI; plan its use in areas where ground-fault protection is required separately.

Why choose a Combination AFCI

Compared with branch/feeder AFCIs, Combination AFCIs extend protection to detect series arcing faults, which can occur along insulation or conductors within a circuit. This broader coverage helps address a wider range of arcing scenarios that could indicate a developing fault, enhancing electrical safety without altering the basic 120V, 15A circuit characteristics.

LED indicators and quick diagnostics

The QA115AFC features LED trip indicators positioned near the handle. After a trip, brief LEDs illuminate to convey the last trip condition, providing a visual diagnostic cue for electricians and knowledgeable homeowners. These indicators remain accessible for quick reference for up to 30 days after the last trip, helping with post-event analysis and future planning.

Design and installation advantages

• 1/4 in. more wire bend space than previous designs, aiding tidy wiring and slack management
• Both lugs at the same angle, simplifying wiring routes and reducing installation time
• Engineered for a secure fit with a 25 lb-in torque rating to ensure consistent mounting

Practical uses and considerations

This breaker protects downstream branch wiring, cords, and power supplies from arc faults in residential and light commercial panels. It is well-suited for panel upgrades during renovations, or when adding circuits where arc-fault protection is desirable. Remember, this is an AFCI solution, not a GFCI device, so apply GFCI protection where required by code or installation context.

What to expect in real-world use

Users may notice a quieter electrical environment with fewer nuisance trips in well-installed systems, along with clearer trip history via the LED indicators. The combination approach expands arc-fault protection without adding separate devices, making it a practical option for streamlined panel configurations in many projects.

Key takeaways

• 15 Amp, 120-volt single-pole configuration
• Combination AFCI for both parallel and series arcing detection
• LED trip indicators for quick trip history
• Wiring-friendly design with improved bend space and angled lugs
• Not a GFCI; plan GFCI protection separately if required

In short, the Siemens QA115AFC combines practical protection with installation ease, offering a thoughtful option for modern electrical panels where arc-fault protection is valued alongside straightforward wiring and diagnostics.