Split Charge Relay Circuit Diagram

A 12 volt relay is the same type of relay that you would find in many 12 volt electrical systems.

Split charge relay circuit diagram.

How does a 12 volt relay work. 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. Fit a fuse to one of these cables rated.

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. Fit the 2 fuses in the fuse holders. Protecting your split charge circuit. The relay will then switch in the alternator feed to the leisure battery to let it charge just like the vehicle starter battery.

I have left boxes on the diagram on the left to help you with your measurements. 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. Have a look at the diagram above to see the basic wiring diagram of your voltage sensed split charge kit. Instillation guide for a 12v voltage sense split charge relay system thank you for purchasing this kit from simply split charge.

Existing wiring not shown for clarity. Most kits will also come with the instructions so you should already have a ruff idea on what needs to be done. This is how you can install your split charge relay.