Through this article, we run through the installation process for the carbon switch panel regarding the 4 onboard switches, voltmeter & dual USB sockets.
The panel utilizes one main power input and ground, has a dual USB charger, a voltmeter and 4x 12v outputs.
|2.||Main 12v input|
|3.||The voltage sense wire (should go directly to the battery)|
|4.||Voltage meter 12v power source (ignition, or pushbutton)|
|5.||Voltage meter ground|
|6.||12v output 1|
|7.||12v output 2|
|8.||12v output 3|
|9.||12v output 4|
Pin 1/5 can be wired together for simplicity, and pin 4/2 can be wired together to the panel's main power source (relay to the battery)
Although the switches are rated for 20 amps, the gauge of wire #2 and #1 limit the output of the switches (wires 6,7,8,9) to about 3-5 amps each. Any higher load would need to be used with a relay. A relay would not be needed for smaller loads, such as a fridge, strip light, work light, or low current accessory.