Q115DFN is the 15A plug-on-neutral version of Siemens’ dual-function breaker. Type QFGA2N watches one 120V branch circuit for qualifying arcing as well as 5 mA ground-fault current, and its interrupt rating is 10 kA.
Q115DFN specifications
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Siemens model: Q115DFN
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Type: QFGA2N
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Protection: Dual CAFCI/GFCI
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Ground-fault level: Class A, 5 mA
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Rating: 15A, 1 pole, 120V AC
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Interrupt capacity: 10 kA
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Neutral: Plug-on connection
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Mount: Plug-in
The N changes the panel connection
Q115DF uses a pigtail neutral; Q115DFN connects directly to a compatible neutral rail. Both are dual-function, but they are not connection-neutral alternatives. QA115AFCN may look related yet provides AFCI only, without the GFCI function here.
Confirm QFGA2N acceptance
Use the loadcenter label to verify Type QFGA2N, then match 15A, one pole, 120V, 5 mA dual protection, and 10 kA. Check conductor data and the required neutral rail. Selection and installation should be completed by a qualified person under Siemens instructions.