Tramontina's 3-temperature 4400 W 127 V electronic shower head is ideal for those who have children at home as it includes a safety feature that prevents the water temperature from being changed while the shower is on. It prevents the danger of electric shock accidents. This product also features a water pressure regulator and extension arm attached to the shower head to provide greater comfort and safety for the user. It also has an easy-access opening mechanism for cleaning the shower plate and replacing the element. With greater safety ever in mind, the shower head is compatible with residual-current circuit breakers (RCCB). The recommended circuit breaker is: 40 A.