When using a 60 kW Power Distribution Panel, how many 25 kW Power Distribution Panels can be connected to it?

When using a 60 kW Power Distribution Panel, how many 25 kW Power Distribution Panels can be connected to it?

• A. 4
• B. 3
• C. 2
• D. 5

Answer: (A)

The main idea is that the rating on the 60 kW Power Distribution Panel sets how much power you can draw from it at any one time, while the 25 kW panels are separate distribution units that can be fed from it. You can connect multiple 25 kW panels to the 60 kW panel, but you must manage the total load so it never exceeds 60 kW. So you can connect four 25 kW panels to a 60 kW main, as long as the actual load across all four panels is kept at or below 60 kW at any moment. The total potential load (if each 25 kW panel were loaded to full) would be 100 kW, but with proper load balancing and planning, the system can operate with four sub-panels under the main panel’s 60 kW limit. If everyone actually drew 25 kW simultaneously, that would overwhelm the main panel, so in practice the loads are managed to stay within the 60 kW limit.

The main idea is that the rating on the 60 kW Power Distribution Panel sets how much power you can draw from it at any one time, while the 25 kW panels are separate distribution units that can be fed from it. You can connect multiple 25 kW panels to the 60 kW panel, but you must manage the total load so it never exceeds 60 kW.

So you can connect four 25 kW panels to a 60 kW main, as long as the actual load across all four panels is kept at or below 60 kW at any moment. The total potential load (if each 25 kW panel were loaded to full) would be 100 kW, but with proper load balancing and planning, the system can operate with four sub-panels under the main panel’s 60 kW limit. If everyone actually drew 25 kW simultaneously, that would overwhelm the main panel, so in practice the loads are managed to stay within the 60 kW limit.