PLC-PT Universal Interface Relays with Push-In Terminal (PIT). Universal Series can be used as either an input or an output device. Connection of sensors/actuators is via modular terminal blocks. Feather-light direct connection of conductors starting from 0.34 mm 2 without tools. The connection of small cross sections from 0.14 mm 2 is done using all common screwdrivers and the actuation lever. The gas-tight conductor contacting also fulfills special criteria, such as the vibration test in acc. with the railway standard EN 50155. Fast plug-in connection of the PLC and other peripherals Gold-plated AgSnO terminals available Solid State versions available