Top photo is the auxiliary/pony panel connected to the main panel middle photo. You can see the larger conduit connecting the two with the 100 amp breaker see bottom left breaker in last photo. Question is... I have never seen an auxiliary box connected to a main through an additional 100 amp breaker within the main. Hope that is clearer...hope...lol
Joined: 06/28/2014 07:21 PM EDT
Location: San Diego CA
It really depends upon the loads if okay or not. I would recommend inquiry regarding electrical permit for the added distribution panel. An electrician would need to perform a load calculation on the service and main to determine if okay.