How can I terminate a wire passing 32A
Two solutions exist:
Use multiple 90 degree angled quick connect terminals and put them in a row onto the same wire.

From TE Connectivity

Use a crimp terminal that looks like a long narrow flat bar with or without a short 90 degree bend at the tip and screw that into the screw terminal. I'll try and find their formal name. They are called &quot;flat blade&quot; terminals or &quot;PIDG tabs&quot;.

From TE Connectivity

From TE Connectivity
Personally, I wouldn't be too worried going from 25A to 32A as long as it was made of copper (and not steel), especially if you used a non-insulated crimp terminal without any plastic to melt. But if it is running 24 hours, I understand since no one will be around to see anything go wrong.
I tend not to worry about current ratings of a connector too much if it is all metal (no plastic to melt), is all copper, and looks to have the same cross sectional area and contact area of the copper wire it is connecting to.