Relay sockets are available in a various shapes, sizes, and colors. Most
of relay sockets are available with 5, 7, 8, 10, 11, 14, and 16 pins.
Few of different socket receptacle styles are, circular, octal, blade,
lug, and cube sockets, square sockets. Miniature pin or blade sockets
are called midgets. Relay sockets differ in terms of the number of pins,
terminal type and socket receptacle style. Performance specifications
include number of maximum voltage, number of poles, and current
capacity.