Dell EMC ECS U400 - C-Series 3-phase AC power cabling

Figure 49 C-Series single-phase AC power cabling for eight-node configurations: Bottom
C-Series 3-phase AC power cabling
Provides the 3-phase power cabling diagrams for the C-Series ECS Appliance.
The switches plug into the front of the rack and route through the rails to the rear.
Power Cabling
84 D- and U-Series Hardware Guide