GFCI protection to an entire circuit
GFCI Receptacle vs GFCI Circuit Breaker Protection
Comparing GFCI Protection
ANALISYS GFCI Receptacle
vs GFCI Circuit Breakers
GFCI is a ground fault circuit interrupter, it monitors current flow on the ungrounded (the hot) and the grounded conductor (the neutral)
GFCI receptacles are easier to install. Sometimes the decision comes down to a question of efficiency. For example, if you need GFCI protection for just one or two receptacles—say, for a bathroom or laundry room—it probably makes the most sense to simply install GFCI receptacles at those locations.