225 amp 3 phase Eaton Breaker

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Buck Parrish

Senior Member
Location
NC & IN
I'm using 250 AL.
But the breaker only goes up to 4/0.
What's up with that? Don't I need 250 AL for 225 amps ? The job specs called for it.
 

curt swartz

Electrical Contractor - San Jose, CA
Location
San Jose, CA
Occupation
Electrical Contractor
What model is this breaker? Seems odd a 225 amp breaker only accepts up to 4/0

Edited to add:
250AL is only good for 205 amps. If the load is less than 205 amps you can protect 250AL with a 225 amp breaker. If the load is greater than 205 amps you need 300AL
 
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