Symbol 5180 from IEC 60417 - Title/Meaning: Class III equipment Function/description: To identify equipment meeting the safety requirements specified for class III according to IEC 61140.
Additional information: 
SELV
Published in: 2002-10-07
Own work using: iso.org/obp/graphics/grs/95166633-b345-424e-b673-df4c0fc01e94 200.png
Vectorization:  Mrmw