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Is there a restriction for breakers mounted opposite each other for the ED, EG, and the EJ type breaker 110 - 125 amp or less?


Issue:
Is there a restriction for breakers mounted opposite each other for the ED, EG, and the EJ type breaker 110A - 125  amp?

Product Line:
Panelboard breakers

Environment:
NF panel and ED,EG,EJ circuit breakers

Cause:
NF panel restrictions

Resolution:
Yes, Please see the restrictions below:

1. When using 1,2, or 3 pole ED,EG,or EJ branch mounted circuit breakers with a handle rating of 110 amperes
or less as branch devices, each bus connector will be restricted to no more that 170 amperes for the sum of the two breaker combination.

2. When using 1,2, or 3 pole ED,EG,or EJ branch mounted circuit breakers with a handle rating of 125 amperes
or less as branch devices, each bus connector will be restricted to no more that 145 amperes for the sum of the two breaker combination.

3. 125 and 250 ampere rated panels will be restricted to no more than  1 -  ED, EG, or EJ  two or three pole branch device. This device will be
restricted to the bottom 2 or 3 spaces of either side of the panel. All other restrictions apply.
a handle rating of 125 amperes

4. A maximum of 1 branch device over 110A allowed on 400/600 ampere panels in non-vented applications. (N3R,12,4,4X etc).



 

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