A modular power distribution system (110) comprises an incoming power cable (118) adapted to connect to jumper cable assemblies (140) having female end connectors (142) and jumper cables (148) connecting together the female end connectors. Junction blocks (150) are connectible to the jumper cable assemblies (140) and are adapted to provide for multiple circuits. Electrical receptacle blocks (152) are adapted to electrically connect to the junction blocks (150), and are configured so as to electrically connect to one of the multiple circuits.