Symbol 5015 from IEC 60417 - Title/Meaning: Air impeller; blower; fan Function/description: To identify the switch or control which operates the air impeller, e.g. a fan of a film or slide projector, a room fan.
Additional information: 
Title was editorially improved
Published in: First edition, 1973
Own work using: iso.org/obp/graphics/grs/4dd20cdf-1575-4535-9ffe-c0dc7a26cd87 200.png
Vectorization:  Mrmw