Split Charge Relay Wiring

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Split charge relay wiring.

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. Foshio auto start relay heavy duty split charge relay switch 12v 200a spst 4pin relay with terminals and wire connection lug 4 1 out of 5 stars 17 10 99 10. Typically split charge relay is controlled by the ignition wire so that when the engine is running ignition is on the split charge relay will close and connect both main battery and auxiliary battery. With a multi metre you can check that the voltage on both batteries are the same to ensure everything is.

How does a 12 volt relay work. Cable cutting stripping termination. Connect the cables to the relay. The split charge relay switch will on and allow currant to flow through to the leisure battery when the voltage rises above 13 2volts.

This is a simple how to video on installing leisure electrics in your vehicle. A 12 volt relay often called a manual split charge relay is an electronic device that uses an electromagnet to pull a set of contacts that make or break a circuit. In this episode paul and chris connect up the new auxiliary battery fitted to the l200 to the main battery using a split charge. Existing wiring not shown for clarity.

A 12 volt relay is the same type of relay that you would find in many 12 volt electrical systems. Connect the cable from the two batteries to the split charge relay. When the engine is not running ignition is off the split charge relay will open and disconnect the batteries. Fit a fuse to one of these cables rated.

To fit a split charge relay first connect a 16sqmm red cable from the positive terminals of each battery bank to the large studs on the relay labelled 87 and 30. For some reason the relay i got didn t have any gaps on the plastic edges to place the cables. Split charge kits 12 volt. Ensure this cable is thick enough to carry the maximum charging current of your alternator.