I need to install a 240v 50amp breaker for an EV charger. There’s no space on my main panel in the basement. I’m hoping to install a new subpanel outside near my main disconnect next to the meter.
- Can I modify the lugs here to double them to go to another sub-panel next to this meter enclosure? If so, which lugs might fit this QOM2200MM disconnect? (Or, alternately, replace this disconnect with one with double lugs if not? Though these 200amp disconnects are pricey.)
(Or am I on the wrong track and better to run the wires from the existing subpanel to a new (intercepting) subpanel, and then wire that panel to this main disconnect? In this case do I need another (200amp?) breaker in the intercepting subpanel to attach the current subpanel in the house to?)
I understand the new subpanel has to be rated for (more than?) the 200 amps of the disconnect even if the loads are lower. Can someone suggest an appropriate subpanel with 4-8 spaces on it? (Maybe I’d install a second 240v/50amp breaker some day.) Most high-amp sub-panels seem to be for large number of spaces.
If I can do double lugs on the existing disconnect, do I need to upgrade the ground / neutral bar currently full in this picture, or can I use two of the lugs on the bar below the second meter? (Current just has a ground wire going to the phone/cable enclosure on it.)
This is in Northern California. Wire size advice for your suggested solution would also be nice if easy—- assume I’d never need more than 2 50-amp breakers / 40 amp loads added to this new subpanel.