Menu

header photo

A Basic Solar System

A basic solar system consists of:

  • Solar panels
  • A solar charge controller
  • An inverter (If A/C power is needed)
  • A D/C fuse block or receptacle (if D/C voltage is needed)
  1. The Solar Panels are connected to the Solar Charge Controller with appropriate size wire protected with the appropriate size fuse.
  2. The Solar Charge Controller is connected to the battery with the appropriate size wire and fuse.
  3. The is Battery connected to the Inverter with the appropriate size wire and fuse.
  4. The battery is also connected to the D/C fuse block with the appropriate size wire and fuse.

Note: The solar panels and batteries can be wired either in series or parallel.

Inverter

Below find the size Inverter you plan to use. Beside each inverter size you will find the appropriate wire and fuse size to connect to the battery. Example: for a 1000 watt inverter use 4 gauge wire and a 100 amp fuse.

 Inverter        Wire size                       Fuse       

500   watt         8 gauge wire              50 amp fuse

1000 watt        4 gauge wire              100 amp fuse 

1500 watt        2 gauge wire              150 amp fuse

2000 watt       1/0 gauge wire           200 amp fuse

2500 watt       2/0 gauge wire           250 amp fuse

3000 watt       4/0 gauge wire           300 amp fuse

Solar Charge Controller

Below find the size Solar charge controller you plan to use. Beside each charge controller size you will find the appropriate wire and fuse size to connect to the battery. Example: for a 40 amp charge controller use 8 gauge wire and a 50 amp fuse.

Charge controller     Wire size                fuse

         20 amp                12 gauge wire          25 amp fuse

         30 amp                10 gauge wire          35 amp fuse

         40 amp                8 gauge wire            50 amp fuse

         60 amp                6 gauge wire            75 amp fuse

Fuses