Can anyone identify this voltage sticker

[stoolpigeon]

Evening all, have been sorting out a lot of electronics and found this sticker on the floor.

AFAIK all these components are 230-240 volts so does anyone recognise this sticker so I can investigate?

Thanks, sp

 

[RJM1]

In the old days that I still remember, the original standard for voltage in the USA was 110/220, then it went to 115/230, then to 117/ 235 and then to
120/240. I do not remember the exact years that they changed but 110/220 changed to 115/230 somewhere between 1954 to 1964, 117/ 235 was in the 1970's and 120/240 was in the 1980's.
My voltage measured at my outlets is 127V today.

 

[JMFahey]

Voltage in Europe was 220V for decades, now it´s nominally "harmonized" into 230V but really only new installations are built that way, old ones stay untouched.

Also in most of Latin America.
Japanese made products for export so they offered all voltages, of course.

So your label might have fallen from any such equipment.

 

[MarcelvdG]

Yes, it used to be 220 V +/- 10 % on most of the European mainland and 240 V +/- 10 % in Ireland and the UK, and that was changed into 230 V +6/-10 % and 230 V +10/-6 %, respectively. New equipment is supposed to work at 230 V +/- 10 %.