We are looking replace the old Airstream 30 amp breaker box and am looking to use an off-the-shelf breaker control box (i.e. not one made specifically for RVs) -- curious if anyone has done this. For the 12V
circuits I plan to use a simple LED 12V
driver (fed by one 120V circuit coming off this breaker box); the remaining available circuits will feed the 120V outlets and appliances (AC system). Might add a few new 120V outlets around the trailer as well. If/when we add solar and batteries, we will have adequate space in the breaker box to accommodate. Our trailer is going to be a park trailer so no batteries to incorporate (not yet at least) involved -- we just want the 50 amp (and/or 30 amp) service supply found at RV parks. We are eliminated the Univolt.
In examining the new breaker boxes that are available from Home Depot/Lowes, it appears that the ground bus and the neutral (white wire) bus are one-and-the-same, while the small 30 amp service box we are replacing (the original Airstream box) has the ground wire bus connected to the steel breaker box, while the neutral white wires have their own bus (and don't appear to be electrically connected to the grounded steel box.)
Any thoughts or guidance would be appreciated!