Likely the answer is no good. Even at 4kw 220v I suspect that the cables aren't going to last very long before they melt. The connectors are certainly not any standard I've seen for this V and A load.Budapest8485 wrote:Anyone see this thing for $25: https://alexnld.com/product/4000w-ac-22 ... hermostat/
The 220v heaters I see are 5500 watts...not sure if there's a way to make this work.
4000w @ 220v is 18A.... and 5.5kw is going to be 25A. This means that all of the parts should be spec'd to at least 30A as they'll be in continuous use. 10awg wires/connectors are a heck of a lot thicker than that.
For reference here is a example build for the SSR based controller I mentioned in your other thread.
Edit: it doesn't have to as complicated as shown. Here is a pic of the one I built. It was about an hours work to assemble.