Solar system

When connecting solar pv system, the most ideal approach to add assurance is by using fuses or circuit breakers. The correct use of fuses and circuit breakers is important to maintain safety. Fuses and circuit breakers are used to protect the wiring from getting excessively hot and also protect all devices connected in the system from bursting into flames or getting harmed if a short circuit happens. A good example is a 12V lead acid battery. If a short develops in your AC/DC inverter for example, a fuse between it and the battery will prevent a possible explosion of the battery and it will cut the circuit fast enough to prevent the wires from bursting into flames or getting hazardously hot. For this situation, the battery, wires, and AC/DC inverter will be securely disabled by the fuse. They are not necessary for the system to run properly, but we always suggest using fuses or circuit breakers for safety purposes. There are three different locations that we suggest installing fuses or breakers: first, between the charge controller and battery bank, second, between the charge controller and solar panels, and third would be between the battery bank and inverter.

        To determine the fuse size required between the charge controller and battery bank you simply match the amperage rating on the charge controller.