Type E electrical plug has two 4.8 millimeter round pins spaced 19 millimeters apart and a hole for the socket’s male earthing pin. Type E plugs have a rounded shape and the Type E socket has a round recess.
Type E plugs are rated at amps.
The CEE 7/7 plus was developed to work with Type E and F sockets with a female contact (to accept the earthing pin of the Type E socket) and has earthing clips on both sides for working with Type F sockets.