This interface terminal block is a wiring connection component that combines a connector and a terminal block. There are several types of terminal block clamps: spring, clamp and a ferrule-processed bar-type crimp terminal that allows for push-in connections by simply inserting a wire. Mounting methods include direct, DIN rail and dual-use mounting variations. The number of poles, the pitch between terminals and the type of connector vary and must be selected depending on the PLC.