See if there is a number on the unit, it may have an after market one, also I should think the regulator isn't that expensive to replace anyway
Waiting to see that I've put foot in mouth again by not knowing the prices
Just looked at a spare one in the shed, the double connectors are for more than one feed, they are in pairs, more than likely just for extra wiring to be added if needed
each pair are connected to the same points through a rivet. if that makes sense :?