QF120AN application snapshot: This Siemens QPF2N breaker provides 5 mA personnel ground-fault protection for one 20-amp, 120-volt circuit. The single-pole body uses a plug-on-neutral connection and must be installed only in Siemens equipment whose labeling accepts this breaker family.
QF120AN specifications
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Siemens catalog number: QF120AN
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Breaker class: QPF2N GFCI
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Ground-fault level: 5 mA personnel protection
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Electrical rating: 20A, 1 pole, 120V AC
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Short-circuit rating: 10 kA
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Neutral connection: Plug-on neutral
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Installation style: Low-voltage plug-in circuit breaker
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UPC: 804766906718
What the model number tells you
QF120AN is a GFCI breaker; it is not a dual-function AFCI/GFCI device. Its plug-on-neutral construction also differs from Siemens pigtail-neutral GFCI models. Those distinctions matter when matching an existing breaker or planning a branch circuit.
Siemens panel-compatibility checkpoint
Read the loadcenter directory and equipment label before ordering. Confirm QF120AN or the accepted QPF2N family, the 20A single-pole circuit rating, 120V supply, 5 mA protection level, and plug-on-neutral interface. Brand, handle color, and physical fit alone do not establish compatibility. Product condition is determined by the selected variant; installation should be handled by a qualified person in accordance with Siemens instructions and applicable electrical code.