Common neutral is 5.29 mm² [10 AWG] for the 5-wire, 3-circuit configuration and 3.32 mm² [12 AWG] for the 4th circuit in the 8-wire configuration. All other conductors are 3.32 mm² [12 AWG]
Polarized and color-coded
White Housing = 5-wire
Black Housing = 8-wire
Two 5.29 mm² [10 AWG] Neutrals are available for 50/50 power on special order for 8-wire cable assemblies