In order to realize higher compatibility of high-performability and energy saving of a refrigerator-freezer, a valve housing having one inlet port normally communicating with a valve chamber and first and second outlet ports B, C opening on a bottom face of the valve chamber, a valve body 17 rotatably provided in the valve chamber and having a partition wall portion 20, on its end face facing a bottom face of the valve chamber, to partition the end face into an opening area 18 communicated with the valve chamber and a non-opening area 19 not communicating with the valve chamber, and an electric actuator to steppingly turn the valve body 17 are provided for an electrically operated selector valve used in a refrigerating cycle unit for the refrigerator-freezer, and the position of the valve body 17 is changed by four positions A-D.