Caravan Split Charge Relay Wiring Diagram

Each item tends to have it s own wiring switches fuses and control so by the end of.

Caravan split charge relay wiring diagram.

Heavy duty split charge kit with 12v m power 140amp voltage sense relay 110amp 16mm2 cable top quality heavy duty split charge relay system kit supplied with 110amp 16mm cable suitable for safely charging any 75ah to 220ah leisure battery s suitable to install into most camper vans motor homes 4x4s day vans mobile workshops cars and. A typical campervan split charging system has a device that connects the battery used to start the engine to the leisure battery when the engine is running. The brown pin 5 in most cases is not used when wiring tow bar electrics and it is important to ensure that the white pin 3 cable is earthed. Straightforward to fit the smart split charge relay provides power to the caravan s 12 volt supply battery charging and refrigerator via a towbar s 12s or 13 pin socket socket not included.

My towcar has a split charge relay fitted on the cable between the alternator and pin 10. The relay will then switch in the alternator feed to the leisure battery to let it charge just like the vehicle starter battery. Split charging relay smartcom voltage sensing the traditional method for split charging is to take a wire from the ignition to energise a relay when the engine is running. Is there any point in leaving the split charge relay there as this circuit will only be powering the fridge.

I am updating the caravan wiring as per your diagram above. Many people wire their campervan piecemeal they start with a habitation area battery then add a split charge relay. This system uses a heavy duty version of a simple make and break relay the coil of which is energised by a signal that is only 12v when the engine is running usually the charge signal wire from the alternator. In some cases a split charge relay might be needed in order for the power to switch divide from charging a leisure battery and the car battery.

Then a mains charger then lights gas heater blower controller water pump power monitoring solar charging of the habitation battery etc.