Hi all, I need a little nudge in the right direction please...

I want to put a mod in a system 11, basically where I press a switch and a coil fires

I found a relay that needs (3vDC to 30vDC). to use as the switch and can activate up to 240vDC

CG Solid State Relay SSR-25DD DC to DC Input 3-32VDC To Output 5-240VDC 25A Single Phase Plastic Cover https://www.amazon.com/dp/B08GNSPCND/ref=cm_sw_r_cp_api_i_32ZNKK4BVXX2WNB0MF6A

So... I don’t want to send voltage through the gnd if it’s going to hurt something unintended, but I’m sure I’ll need to use common gnd anyway... here’s my diagram I drew, anyone know what I need to do to accomplish my goal and not blow fuses or release the magic smoke?

Help is greatly appreciated , thank you

87ABD9DB-5E5F-486E-99F9-36991C887428 (resized).jpeg

Thank you
Yes, I have the diode pointed toward the +70Vdc supply

Should I add a diode toward the +5vdc as well?

Thank you,

I’ll hook it all up and report back!