Replacing magnetek 6300 with inverter/charger

nakedgun wrote:
What would be ideal would be to tap the 30a supply line (somehow) with an additional 30a receptacle which the inverter plugs into - just for ease of connecting/disconnecting. Not sure if there's a gizmo for this use case - I guess this is the role of a transfer switch?

Just to clarify - the 120v supply wire to the Magnatek. This should probably be the black wire going into the lower charger unit right?

Yes, a transfer switch would be indicated for that. Smaller inverters won't likely have one. I got tired of Xfer switches burning out so now I just have a big manual knife switch.

I think my Mag supply lines were white and black. Doesn't matter which one you intercept.