Plc interface, the user-oriented relay interface between automation device and system periphery from phoenix contact is now also available with two pdt contacts. The interfaces consist of 14 mm-narrow base terminal blocks and pluggable 2-pdt relays. They are narrow, quick and easy to install and throughout bridgeable. Despite the little space required, the contacts can carry a direct load of up to 6 a/250 v ac. Due to its pitch-free jumper system, the interface terminal block saves space and costs. The modular, pluggable structure with universally useable relays ensures flexibility and convenient handling-from the system planning to many years of use. Supplementing actuator variants take up all connections of the actuators directly at the interface and save feed-in and return conductor terminal blocks as well as their wiring. Further performance features are: ip 67-protected relays, safe disconnection according to vde 0106-101, integrated input and protection circuits, and the possibility of marking with standard terminal block marking material.