Help Reviewing Controller Box Plan - 240v

[WithOrWithoutU2]

I have read a ton and think I am ready to try and make my first controller for 240v 6500w Element. I would appreciate help review the below parts list to ensure each part will support the final project and work together as a whole. I have also include a rough diagram how I plan to wire it together. The Red, Black and Green wires will be the 10/3 from the power and out to element. The other colored wires will be the smaller gauged wire to connect. I know the diagram is not how a real electrical diagram should be drawn but it is how I envision it.

Note: I read the ground wire does not have to be connected to the box if it is grounded into the element for a tri-clamp. But I have seen them grounded to the SSR as well. I can do it however is suggested. Thank you for your review and advice in advance.


LED AmMeter https://www.ebay.com/p/2118950088?iid=1 ... gJ07fD_BwE

Still Dragon Controller Kit with Project box, SSR (40A) and 470ohm Pot https://stilldragon.com/diy-controller-kit.html

Fanhttps://www.amazon.com/gp/product/B07GP ... UTF8&psc=1

30A Rocker Power Switchhttps://www.amazon.com/gp/product/B06X6 ... UTF8&psc=1

47ohm Pot https://www.amazon.com/gp/product/B07P8 ... UTF8&psc=1

PS. I have this also posted in another older thread about adding second pot to SD controller box. I decided to start a separate thread given this is significantly more than just adding a second pot to SDs kit.

240 Controller.JPG