QF250A is a 50A Siemens QPF2 ground-fault breaker. It supplies Class A 5 mA GFCI protection across two poles on a 120/240V AC system, with plug-in mounting, a factory neutral pigtail, and a 10 kA interrupting rating.
QF250A specifications
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Catalog number: QF250A
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Siemens family: QPF2
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Protection: Class A GFCI, 5 mA
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Rating: 50A, 2 pole, 120/240V AC
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Interrupting capacity: 10 kA
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Trip: Thermal-magnetic plus ground-fault electronics
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Mount: Plug-in
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Neutral: Pigtail
Ignore shipping-box dimensions
The previous listing included measurements that appear to describe packaging rather than the breaker body. They have been removed. For fit, rely on the Siemens type, approved panel, pole arrangement, connection method, and current product drawing—not carton dimensions from a distributor feed.
Review panel, load, and neutral
Confirm the loadcenter accepts Type QPF2 and that a 50A two-pole Class A GFCI is correct for the connected equipment. Check 120/240V system details, conductors, available fault current, and neutral routing. Installation should be performed by a qualified person using the Siemens diagram.