What type of circuit should bathroom receptacles be on?

Bathroom receptacles must be on a 20 amp GFCI circuit to ensure safety and protection against electrical shock. This requirement stems from the National Electrical Code (NEC), which mandates that all 15- and 20-amp receptacles installed in bathrooms must be GFCI-protected.

Using a 20 amp circuit allows for accommodating the potential load from bathroom appliances, such as hair dryers and electric razors, which can be used simultaneously. The GFCI (Ground Fault Circuit Interrupter) is crucial in a bathroom setting, where the risk of electrical shock is heightened due to the proximity to water. The GFCI continuously monitors the flow of electricity and disconnects the circuit if it detects an imbalance, thus enhancing safety in environments where moisture is present.

While a 15 amp circuit could technically support some devices, it does not meet the efficiency or safety requirements of bathroom receptacles. A 30 amp circuit is unnecessary and could lead to improper load distribution, which increases the risk of a fire hazard. A dedicated circuit may be appropriate in some specific situations, but under typical current regulations, a 20 amp GFCI circuit is the standard requirement for bathroom receptacles.