Symbol 6286 from IEC 60417 - Title/Meaning: Overload protection device fitted Function/description: To indicate that the overload protection device is fitted.
Additional information: 
IEC 60051-1 provides technical details.
Own work using: iso.org/obp/graphics/grs/a6c68531-a008-49b9-b843-1fac34fdd485 200.png
Vectorization:  Mrmw