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Ground Fault Circuit Interrupter(GFCI). Sometimes known as a GFI, or a residual-current device (RCD or RCCB). Can refer to receptacles as well as circuit breakers. They detect a leak in current, or an imbalance between the current on the hot and neutral wires. This is used to prevent electrical shock. Use with the [electrical] tag
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Can you have both 15 and 20 Amp receptacles off the same 20 Amp GFCI?
In general practice, 20 amp receptacles are only used on a dedicated 20 amp circuit. At a glance the 20 amp receptacles unique configuration tells you it is a dedicated circuit and will supply its ful …