Symbol 6378 from IEC 60417 - Title/Meaning: Foot control Function/description: To identify a foot control device, connection or function.
Additional information: 
See also IEC 60417-5114 and ISO 7000-1853.
Own work using: iso.org/obp/graphics/grs/aefa6ce9-2008-4ae2-ae13-0685ce0c0ae1 200.png
Vectorization:  Mrmw