Yes the feeder is on a 100a OCPD it just seems odd that a 100a wire is landed on a 200a breaker in the ATS...and the lugs that the # 6's will land on a lug that looks large for a # 6 , but I didnt look that closeaugie47 said:sounds correct if your 100 amp feeder has 100 amp OCP.
(that wasn't 100% clear to me)
Rich R said:also the wire is too small for a 65 amp breaker unless you are using a special insulation type for the #6's.
It could be that the ATS is rated as service equipment for the disconnect required by 225.30 through 225.39Rich R said:Not sure if this is something you installed already or planning to install but the 'Service rated ATS is not needed in this setup. ( Service rated ats switches are double the price of non service rated.
Rich R said:also the wire is too small for a 65 amp breaker unless you are using a special insulation type for the #6's.
I agree if using SE cable it is too small as outlined in 338.10(B)(4)(a)augie47 said:unless it's NM, why ?
and rightly soRich R said:...AKSparky , we have to submit a load calc on any auto transfer switch whether it matches the main size or not. This is submitted with the drawings for permit approval