Large box sizing help

[nickelec]

Have an unusual set up. Were installing a 3000A service and having an issue sourcing a switch in time. Utility is ok with me installing a "pull box" with terminal blocks to accommodate until the switch comes in

We will be installing 8 sets of 4 inch pvc with 4 750 mcm conductors in each, i need to size a big enough pull box to house the conductors and terminal blocks

Any help is greatly apricated

 

[augie47]

What do you think about sizing the box the same as the future switch so when the switch does come in the same conductors can be uised

 

[nickelec]

What do you think about sizing the box the same as the future switch so when the switch does come in the same conductors can be uised

I think the box itself needs to be larger then the switch, i will arrange my conduits in coordination with the switch spec sheet.

Im also trying to figure out the size of wireway i would need for 32 750 MCM AL

 

[augie47]

I should have worded switch cabinet.
Only loss of conductor would be the distance between the Line & Load switch terminals.
If you size the enclosure the same as the cabinet you know it will be large enough.