Why you would want to do so, and how you think you're going to use them with a 110V supply, is another thing altogether.
If you have Swiss equipement that runs on your net just buy American plugs and replace the Swiss ones. The moment you'll notice the prices of Swiss sockets you'll think this is a good idea Also Swiss sockets might not be able to withstand the Amps you need due to your lower voltage.
Yes, it is 180° phase difference, cause by a center-tapped transformer:
https://en.wikipedia.org/wiki/Split-...electric_power
PS: European voltage is 230V +/- 10%, 50 Hz.
But there is also a practical side to it. Normal household outlets are standard 120V / 60Hz, surely one can change to 240V but only one such outlet per circuit/group is allowed, standard 110V breakers are to high of value for standard Swiss outlets, so to make it all safe and proper according to the rules is just a lot of hassle and costs. And why? Just use American plugs and outlets which are much cheaper than the heavily overpriced Swiss parts. It feels to me that OP wants to solve a problem but is not picking the proper or best way to do it.
I didn't take that approach for the stuff I brought from Switzerland, though. These days transformers are dirt cheap, and some are so elegantly designed that they can be put on even the fanciest kitchen counter. I have one for some kitchen gadgets like the rotary hot air fryer I bought from an EFer many years ago, a very big one for my workshop incl. an electronic laboratory and one for the boat (not for the boat proper but for some power tools I brought from Switzerland too).
All in all, buying those transformers was way cheaper than replacing the power tools etc..
When we were living in Japan I had the electrician install a 220 v outlet in our house for my Laura Star.
It actually was less expensive than buying a heavy duty transformer.
Electric stoves in the US normally run on 230VAC, not 115VAC, as do some driers, AC, etc.
And the nominal value in the US is 117VAC, not 110VAC.
Tom
117+/-7 gave 110-124VAC
Tom
https://www.homedepot.com/p/Commerci...U-09/203456716
You can also still get "Stromdiebe" screw-in lamp sockets, into which you can plug appliances. Like this https://www.homedepot.com/p/Leviton-...-00W/100184555
In Switzerland non-code since 1976 https://de.wikipedia.org/wiki/Stromd...assungsadapter )
Problem: Lamp sockets are rated for less amps than the appliances you might connect.
Tom
Solutions certainly exist. I once worked for a company who had a lot of North American equipment in the labs, partly due to an entire department having been moved across the pond and bringing virtually everything with them. We had 110V 60Hz outlets in all the lab areas (in addition to the 240V 50 Hz ones) and had one or two of the things in the offices too (which confused the secretaries). All protected by US style fuse boxes. The Swiss inspectors inspected and approved all of it.
So I guess it must work the other way too.
And yes, a Swiss Type 13 must be secured with no more than 13 amps, and a Swiss Type 23 with no more than 16 amps.
I might understand Swiss sockets instead German Schuko, as you have three sockets in the space of one. But the US NEMA 6-15 or 6-20 are already quite space saving.
https://www.stayonline.com/product-r...ence-chart.asp
and cheaper