I have a 5k MPII GX which I use in ESS mode to supply the whole house.
Is there an aux output which I can programme so as to get a contact closure when the mains fails, in order to shut down a big load and conserve the battery?
I don't want to wire the load to AC-Out 2 as AFAIK it is not then possible to override it, whereas I could put a manual override switch in series with the shutdown contacts.
I know I can fit an external relay on AC-Out 2 but thought I would ask before buying one.