This is a remix of this nice 4040 cap for Ender 3 v2. I have enlarged a little (0.2 mm) the nut holes (M4) to enable a better fit and added a 230V embossed text (also a version without text).

I'm recently thinking of adding a Sonoff mini switch to lead only 3V to this switch, so there should be no risk of electric shock after years of use when the cable may touch (by cuting the isolation) the frame due to micro-vibrations. Once, done, I'll post is as well.