240.21(6)(H) may allow the OCP for battery storage to be located in the battery room.Why do you want to change them?
The disconnects are located in a single location and appear to be wired correctly.
A single 200 breaker would require each feeder to be increased to 200 amp.
I vote don't fix it, if its not broken.
See bottom right side of attached Southwire chart "Amperage Allowance for 3-Wire Single Phase Dwelling Service"Neither panel is going to be listed for a single 200 amp breaker even if they would physically fit. There are no neutral terminations for "200 amp" wire either. Its time to break stucco!
Also whoever installed those 125 amp breakers needs to stop doing electrical work. 2/3 NMB has an ampacity of 95 amp and needs to be protected at 100 amps or less.
Interesting on ampacity of #2.See bottom right side of attached Southwire chart "Amperage Allowance for 3-Wire Single Phase Dwelling Service"
Notice The 125A service rating (Amps) for #2 NM. Southwire appears to be applying the next size up OCP for 104A, per 310.15(B)(7)(2) or 125A x 0.83
If battery storage OCP is allowed in battery room, per 240.21(6)(H), then existing meter center can remain un-molested, with same 125A OCP's on #2 NM, per Romex manufacturer listing.
That is the plan! But HOW?how about this. add a 200 A cb between the meter and the two existing breakers.
I don't know anything about these kind of split panels but is there wiring that comes from the meter to the breaker panels? if so, just mount a CB box next to it and route the wires into the new CB.That is the plan! But HOW?
Take a look at the photos in the OP.I don't know anything about these kind of split panels but is there wiring that comes from the meter to the breaker panels?
Since there are 2 feeders neither of them supply the total load to the dwelling so the 83% allowance can not be used. Manufacture listings can not override minimum NEC requirements.See bottom right side of attached Southwire chart "Amperage Allowance for 3-Wire Single Phase Dwelling Service"
Notice The 125A service rating (Amps) for #2 NM. Southwire appears to be applying the next size up OCP for 104A, per 310.15(B)(7)(2) or 125A x 0.83
If battery storage OCP is allowed in battery room, per 240.21(6)(H), then existing meter center can remain un-molested, with same 125A OCP's on #2 NM, per Romex manufacturer listing.
Can't they get away with it if the subpanels are the sole electrical supplies on separate buildings?Neither panel is going to be listed for a single 200 amp breaker even if they would physically fit. There are no neutral terminations for "200 amp" wire either. Its time to break stucco!
Also whoever installed those 125 amp breakers needs to stop doing electrical work. 2/3 NMB has an ampacity of 95 amp and needs to be protected at 100 amps or less.
Roger that, existing permit records may show separate services, before some remodel merged the building, or inspector missed it.Since there are 2 feeders neither of them supply the total load to the dwelling so the 83% allowance can not be used. Manufacture listings can not override minimum NEC requirements.
any help in identifying the manufacturer of the panel in the 3rd and 4th photo (upside down breakers) is greatly appreciated.
May be ITE/Gould. That would also correspond to the more recent Siemens/Murray breaker above it.If you think that bottom 90-amp breaker is the original one, maybe it is Crouse-Hinds? I've seen breakers with a similar style and a Crouse-Hinds label.