Wago d sub plug connectors and socket wago 0750 0972 the wago d sub plug connector and socket is a field bus plug characterised by a compact design and a programming interface well designed with 2 horizontal cable guides for input and output along with a fast and maintenance free cage clamp connection and clamping points lockable via actuation slider externally operable switch for switching the scheduling on and off wago 0750 0972 d sub plug connector and socket