Disconnect Ground Lug Size for Tap's EGC

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xguard

Senior Member
Location
Baton Rouge, LA
I have a tap off of a 400 amp feeder that lands on a 200 amp fused disconnect. Based on the 400 amp upstream fuse I selected a #3 equipment ground from 250.122 for the tap. The ground lug listed on the 200 amp switch label only goes up to #4.

What options are there? I would assume this comes up frequently with taps.

and

Would you:

Ignore it?
Use a larger lug (that's not spelled out on the label)?
Use a different disconnect?
 
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