Symbol 5130 from IEC 60417 - Title/Meaning: Pulse, general Function/description: To identify the control by which a pulse is started.
Additional information: 
In combination with symbol 5131 this symbol means ""short pulse""
Published in: Supplement A, 1974
Own work using: iso.org/obp/graphics/grs/6781a288-e717-493d-bc44-5fff6b82cdfb 200.png
Vectorization:  Mrmw