Abstract: A load balancing electrical wiring device or power strip 2 includes a tap socket assembly 20 with multiple line conductors 4 so that more than one branch circuit is present in device. The tap socket assembly 20 is connected to a circuit protection power source by a power cable 80 attached to end connectors 30 on the tap socket assembly 20. Different versions of receptacle outlets 40 can be plugged into the tap socket assembly 20 to connect different receptacle outlets 40 to different line conductors 4 and therefore different branch circuits. Receptacle outlets 40 can be replaced by a different version of the receptacle outlet to connect to a different line conductor 4 so that the branch circuits can be balanced without changing the wiring at the circuit protection power source. The tap socket assembly is positioned in a mounting enclosure 70 that includes openings 76 through which the receptacle outlets can be inserted or removed.