New Astro Voltage selector

[erzane]

I'm looking to find this voltage selector or ''terminal block'' (if the name is correct).
Brand : Kokusai Electric. But these I cannot find anywhere on the web.
Do you know the purpose of this part? As far as I know, it serves to select voltage...
Maybe this part isn't useful if I already have a 110/220V transformer?

Ive found some screw terminal blocks spare parts by Sato. That's the closer I can get for the moment :
https://www.satoparts.co.jp/ENG/products/search/ML/
Thanks!

 

[Hackcell]

following

 

[erzane]

Any idea about the name of that component? ''Voltage selector''? Something like that?
Is there any manufacture selling these?