A system for control of motors for industrial applications including a motor control center and motor control unit. The motor control center having at least one printed circuit board, and a motor control unit having at least one pin. At least one pin includes a barrel, a plunger, and a spring. The motor control unit is selectively insertable into the motor control center, whereas the at least one pin transitions from the first position to the second position upon insertion and the at least one pin connects to the at least one printed circuit board forming an electrical connection between the motor control center and motor control unit.