Type D connectors are designed for a maximum current of 5A, while type M connectors are designed for a maximum current of 15A. Let us for example take a look at the type D and type M connectors. It is simply not possible to safely adapt between arbitrary sockets and plugs unless you know exactly what you are doing, and to be frank, a common consumer does not know what he is doing when dealing with electricity. The different types of sockets and plugs are not only commonly used with, but also designed for different voltages, power limits and different safety requirements. Time will tell if anyone ever will create such a product."Įlectrical sockets and plugs have more attributes than just the arrangement of pins, the distances between them, pin length and pin form. It would need to cover A,B,C,D,E,F,G,H,I,J,K,L,M,N,M,O single plugs together with a transformer and possible frequency conversion and taking into account safety regulation. It is not known how much it would costs and it is not known how customers would be interested. So the answer seems "buy one (or more) for each specific region, no generic adapter exists because of probably business reasons, but no references or research in this market is known.
) covers the " why it historically grew like this in countries " but does not answer the question on why no-one sells a device that is true universal adapter because "any market" has an upper and a lower side so I would expect that somewhere some company would sell a 100% solution on the upper side of the market.
The "why so many" information pages out there (e.g. The main reason given for not existing is mentioned as a business reason, but without any business research or reference it is hard to quantify.It seems this variable is independent of the question since " it is already so that the market sells unsafe devices" Known: Differences in voltages/frequencies and local safety regulations already apply to existing travel adapters often sold with additional devices and often not.With as example Type D+M in whatever world adapter out there, and the examples below confirm: it does not exist As far as I know no world adapters exist. Confusing for travellers because often no description is given only a picture. Known: a lot of companies sell world adapters, countless internet sites selling these for "any country", most of them cover the same 150+ countries in the regular regions.So from the answers here-under I see confirmation but still no definitive answer. But somehow this question is no-where to be found on any of the most famous Q&A sites, which is surprising. I think this question is not uncommon with customers. (I was looking for an adapter of type D+M and found a gazillion "universal 150+ countries" adapters but none that are really universal) (did not find even one that would support both D+M).
Or does it exist somewhere? (independent of costs) a smart device that checks the country it is in and adapts the voltage and the pins with some kind of universal socket. Why is there no universal travel adapter available for type A+B+C+D+E+F+G+H+I+J+K+L+M+N+O ? ( ) e.g.