QB1020GF protection and fit: Eaton QB1020GF is a bolt-on ground-fault breaker for one 20-amp circuit. Its QB frame and 10kA interrupting rating distinguish it from the higher-rated QBH version and from plug-on residential breaker families.
QB1020GF specifications
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Catalog number: QB1020GF
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Current and poles: 20A, single-pole
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Voltage class: 120/240VAC
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Ground-fault trip: 5mA
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Interrupting rating: 10kAIC
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Connection: QB bolt-on
QB versus QBH
QBH1020GF carries a 22kA rating, while this QB1020GF is rated 10kA. They should not be interchanged where the available fault-current calculation or panel listing calls for the higher-rated model.
Installation review
Confirm the panel label, system voltage, ground-fault requirement, conductor range, bolt-on hardware, and terminal torque. This GFCI does not provide AFCI protection. A qualified person should install it on de-energized equipment and perform the manufacturer's functional test.