Rockwell Automation 141A Mounting Ssystem MCS Star Tutorial - Manual (Page 32)

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Locking the
Rack Design
You will notice that MCS Star calculates the conductor size requirements. Because we included
the total load of the second rack as a load through the supply module in Rack 1, we can use the
conductor size calculated by the software for Rack 1 to feed the main circuit breaker (3/0 AWG).
For the conductors between the supply modules feeding Rack 2, it shows we can use a smaller
conductor (0 AWG).
Now that the rack design is complete, we can lock the confi gurations by double clicking on the
unlocked padlock symbol . If you need to make changes later, you can unlock the rack by
double clicking on the locked padlock symbol .