Construction system for load feeders with permanent wiring

A load feeder for switching and protecting a load connectable in a main power circuit for voltages above 100 volts, the load feeder comprising:

• a support part having first plug connections for connection to a power bus module with main power cables and a data bus, the support part being formed as a modular first base lower part of a support system expandable in a modular manner;
• a feeder assembly being mechanically adaptable to the support part and being connectable to the first plug connections via first mating plug connections;
• at least one of first cable sections and first bus sections arranged in the modular first base lower part and integrated with associated second plug connections and second mating plug connections;
• and
• at least one of second cable sections and second bus sections making contact, via the at least one of the first cable sections and the first bus sections and via associated third plug connections and third mating plug connections, with a correspondingly designed second base lower part in order to expand the support system.