Solid state relays

[JRouche]

My first post here to the electrical forum.

I am wiring up my air ride system and need some help. I usually use the standard "box" type mechanical relays for everything, they work great and hold up. But my custom panel Im making has a very limited amount of space.



So I was thinking about using some solid state relays. I have a few on hand. And they are good for 40amps. I only need to pull a max of 20 amps each.

I have used them alot on some CNC machine conversions and they fit the bill.

So.. Any reason you guys think they are not a proper use? They are alot lower in profile so that helps me alot.

So whatcha think? Doable? Any reason to NOT use them? Thanks ahead of time. I appreciate any advice. JR