Split Charge Relay Circuit Diagram

Most kits will also come with the instructions so you should already have a ruff idea on what needs to be done.

Split charge relay circuit diagram.

Fit the 2 fuses in the fuse holders. Whatever split charge system you opt for the most important aspect is to ensure that all connecting cables are protected by appropriately rated fuses to prevent an electrical fire. The relay will then switch in the alternator feed to the leisure battery to let it charge just like the vehicle starter battery. 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.

A 12 volt relay is the same type of relay that you would find in many 12 volt electrical systems. I have left boxes on the diagram on the left to help you with your measurements. Each battery that connects into the split charge device should have an appropriately rated fuse installed in line with the. How does a 12 volt relay work.

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. The other and much easier method is to use a volt sensing circuit which detects a rise in voltage when engine running and energises the coil of a split charge relay to charge the leisure battery. Ensure this cable is thick enough to carry the maximum charging current of your alternator. Instillation guide for a 12v voltage sense split charge relay system thank you for purchasing this kit from simply split charge.

Protecting your split charge circuit. This is how you can install your split charge relay. Have a look at the diagram above to see the basic wiring diagram of your voltage sensed split charge kit.