In a 3Ø panelboard with vertical busbars, the CØ feeder conductor is connected to the busbar on which side?

In a 3Ø panelboard with vertical busbars, the CØ feeder conductor is connected to the busbar on which side?

• A. Left
• B. Right
• C. Middle
• D. Bottom

Answer: (B)

In a three-phase panelboard with vertical busbars, the three hot busbars run in a fixed left-to-right order. The third phase—the one used for the CØ feeder—is connected to the rightmost busbar when you’re facing the front of the panel. This placement keeps the phase sequence consistent with the panel’s labeling and wiring layout, and it separates the neutral/zero conductor to its own neutral/ground path. So the CØ feeder goes to the right-hand busbar, not the left, middle, or bottom.

In a three-phase panelboard with vertical busbars, the three hot busbars run in a fixed left-to-right order. The third phase—the one used for the CØ feeder—is connected to the rightmost busbar when you’re facing the front of the panel. This placement keeps the phase sequence consistent with the panel’s labeling and wiring layout, and it separates the neutral/zero conductor to its own neutral/ground path. So the CØ feeder goes to the right-hand busbar, not the left, middle, or bottom.