30Amp S Type 12v TEC3M Self Switching Dual Charge Relay

30 Amp Self Switching Combi Relay

This combination caravan relay has automatic voltage monitoring and switches the power supply from car to caravan

It provides power for the refrigerator and also charges the leisure battery while protecting the vehicle batter from draining when the engine is turned off

No separate signal wire required 

Alternative part number - MP2883B