Symbol 5009 from IEC 60417 - Title/Meaning: Stand-by Function/description: [To identify the switch or switch position by means of which part of the equipment is switched on in order to bring it into the stand-by condition, and to identify the control to shift to or to indicate the state of low power consumption. Each of different states of power consumption may be indicated using a corresponding colour.]
Additional information: 
See also IEC 60417-5266
[2014-07-18: 3C/1928/CD (2CD);2014-11-21: 3C/1951/CC;2014-11-28: 3C/1958/CDV;2015-03-13: 3C/2036/RVC]
Published in: First edition, 1973
Own work using: iso.org/obp/graphics/grs/1ed12916-bd95-4826-bd0c-3c21d8247f67 200.png
Vectorization:  Mrmw