How many safety air switches do you use for the 3000W water heater?
3000W water heater operating current is about 15A, choose a slightly larger DZ47LE-60, series leakage protector, C20 (A)
The following are common models / specifications: C16, C25, C32, C40, C60, C80, C100, C120 and other specifications, so choose C16 model.
16A, select model C16;3000 / 220 = 13.6 (A);Currently, families use DZ series air switches (miniature circuit breakers with earth leakage protection)
