I could have done it many different ways, but this is what I chose at this time.
![Cut 40 Plasma Cutter Circuit Diagram Cut 40 Plasma Cutter Circuit Diagram](http://spectrotek.com/3.1mhz_coupler/LC3%20Circuit.jpg)
If you go to the final wiring section, you will also find pictures of my rigging of these parts. I checked and rechecked all wires before mounting external parts. When wiring all my components, I used my Chevy board layout diagram to run my wires. As you can see, I have terminals to all parts that get an external connection outside of their system so all I have to do is run a piece of wire in-between. Microwave capacitor or run capacitor, a household dimmer switch rated for 15 amps. Terminal strip, 4 position is all I needed but 5 position was what I had in my toy box. The low voltage DC components are mixed with power switch and 120 volt terminals. If you lose your fire it restarts the arc and gets you going again automatically. Reed Switch (which I used as a current sensor), what it does is allow the high voltage arc system to fire and as soon as high current starts to travel to the head and cutting starts it shuts down the high voltage arc system while cutting since it’s not needed at this point. Then I began with my next system, High Current DC.
![Cut 40 Plasma Cutter Circuit Diagram Cut 40 Plasma Cutter Circuit Diagram](https://weldingstore.tokentools.com.au/images/detailed/3/656_598_597_plasma-cutter-radius-bar-2.jpg)
I wired it so when the head trigger is pressed, it turns the contactor on and allows my DC components to come on line. The contactor became my first part on the board. The transformer is mounted off board because it is big and heavy, as you can see in Section 13. Those sections are Power Control, High Current DC, Low Voltage DC and High Voltage Arc Start.ģKVA step down transformer and contactor. As I began mounting my parts, I organized my board into four sections.