Load Center Capacity Terminology ?

May 19, 2008 1 Replies

Hello,



A bit confused over terminology used for a typical interior residential Load Center.



e.g., when it says the Breaker capacity is 12-1" - 20-1/2", does that imply, as an extreme, you can have the box filled up with nothing but 1/2" breakers, 20 of them ?



Box in question is a GE TM1212 CCU 125 amp. main breaker



Thanks, B.


Without looking up the panel spec -

20 - 1/2" breakers are 10 - 1" spaces. There should be 2 - 1" spaces left. You should be able to install 20 - 1/2" and 2 - 1" breakers. There should be 2 positions where only 1" breakers can be installed (enforcing a max of 20 - 1/2").

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