QO115GFI neutral-path checkpoint: This Square D QO breaker protects one 15-amp, 120-volt branch circuit with Class A ground-fault protection. Its factory neutral lead terminates at the panel neutral bar, distinguishing this pigtail model from plug-on-neutral designs.
QO115GFI specifications
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Catalog number: QO115GFI
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Current and poles: 15A, single pole
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System voltage: 120VAC
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Interrupting capacity: 10kA
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Ground-fault designation: Class A, 6mA
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Connection: QO plug-in with neutral pigtail
GFCI is not dual-function protection
QO115GFI detects qualifying ground faults and provides normal overcurrent protection; its catalog number does not indicate combination AFCI protection. Matching amperage and case width alone do not establish panel compatibility.
Installation release check
Confirm QO acceptance on the panel label, system voltage, conductor range, terminal torque, load-neutral arrangement, and available fault current. A qualified electrician should de-energize the equipment, make the neutral and load connections, and complete the manufacturer-required functional test under applicable instructions and code.