What is the difference between a GFCI outlet and a GFCI breaker?
For most situations, you can use either a GFCI outlet as the first device on the circuit, or you can install a breaker with a built-in GFCI. The former is generally preferred, since GFCI breakers are quite expensive. For example, an ordinary GE breaker costs ~US$5; the GFCI model costs ~US$35. There is one major exception: if you need to protect a “multi-wire branch circuit” (two or more circuits sharing a common neutral wire), such as a Canadian-style kitchen circuit, you’ll need a multi-pole GFCI breaker. Unfortunately, these are expensive; the cost can range into the hundreds of dollars, depending on what brand of panel box you have. But if you must protect such a circuit (say, for a pool heater), you have no choice. One more caveat — GFCI outlets are bulky. You may want to use an oversize box when installing them. On second thought, use large (actually deep) boxes everywhere. You’ll thank yourself for it. Incidentally, if you’re installing a GFCI to ensure that one specific outl
For most situations, you can use either a GFCI outlet as the first device on the circuit, or you can install a breaker with a built-in GFCI. The former is generally preferred, since GFCI breakers are quite expensive. For example, an ordinary GE breaker costs ~US$5; the GFCI model costs ~US$35. There is one major exception: if you need to protect a “multi-wire branch circuit (two or more circuits sharing a common neutral wire), such as a Canadian-style kitchen circuit, you’ll need a multi-pole GFCI breaker. Unfortunately, these are expensive; the cost can range into the hundreds of dollars, depending on what brand of panel box you have. But if you must protect such a circuit (say, for a pool heater), you have no choice. One more caveat — GFCI outlets are bulky. You may want to use an oversize box when installing them. On second thought, use large (actually deep) boxes everywhere. You’ll thank yourself for it. Incidentally, if you’re installing a GFCI to ensure that one specific outlet
