Safety Symbol
Safety Symbol
Direct current
Alternating current
Earth (ground) terminal
Protective earth ground terminal.
Both direct and alternating current
Three phase alternating current
Neutral conductor on
permanently installed
Terminal is at earth potential.
Line conductor on
tl i
t ll d
i
t
Frame or chassis terminal
On supply
Off supply
Standby supply Unit is not
permanently installed
equipment
permanently installed equipment.
Out position of a bi-stable
push switch
Caution, risk of electric shock
Standby supply. Unit is not
completely disconnected
from ac mains when switch
is off
In position of a bi-stable push
switch
Caution, hot surface
Caution, refer to accompanying
documents
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