I was wondering what this symbol is and possibly the footprint as well:
Looks like some kind of screw terminal (for example: WP-THRBU REDCUBE THR with internal through-hole thread | Electromechanical Components | Würth Elektronik Product Catalog). It’s hard to tell regarding the size of your picture and no reference for dimensions. But the footprint is basically 4 holes which you could figure our easily with a caliper.
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This is indeed a screw terminal for high current.
The link ekoeck provided is for a more expensive “milled” version. The versions from stamped and tinned copper are easier to make and thus cheaper. Usually these are also high enough for the screw, so there is no hole for the screw in the PCB.
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From the schematic this is how it looks like, not sure if this symbol can be found on Kicad, I have been trying to look for it but have failed:
Symbols like that are usually custom made for a single project, or a single company.
KiCad does have some screw terminals in it’d default libraries, but it is just one series, and with different pin (screw) counts.
In KiCad, pads in a footprint simply all have to be connected on the PCB if they have the same pad number. So it is easy to use the default screw connector from KiCad, and then make a custom footprint for your 4-prong screw connector and just combine those two.
Basically you can choose any symbol you want, as long as the pins match those of you footprint. The graphical representation has no impact on the function, just helps to understand what’s happening.
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