Buzzer symbol
Also called Sounder, Horn, Alarm
An audible signal device: a half circle with a flat base.
ANSI / IEEE
IEC 60617What the buzzer symbol means
An audible signal device: a half circle with a flat base.
ANSI and IEC symbols
Where you see it
Alarm and warning signals on panels and machines.
Related symbols
Frequently asked questions
What does the buzzer symbol look like?
On ANSI drawings: A half circle on a flat base. In IEC 60617: The same half circle.
Is the buzzer symbol the same in IEC and ANSI?
Yes, it is drawn the same way in most legends.
Where is a buzzer used?
Alarm and warning signals on panels and machines.
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