Ground (earth) symbol
Also called Earth, Ground, GND
The connection to earth, the reference point for voltages and the path for fault current.
ANSI / IEEE
IEC 60617 · S00200
What the ground (earth) symbol means
The connection to earth, the reference point for voltages and the path for fault current.
ANSI and IEC symbols
Where you see it
Earthing of equipment and systems, and the 0 V reference on circuit diagrams.
What is written next to it
On a schematic, the ground (earth) usually carries sometimes the earth conductor or earth bar it connects to.
Related symbols
Frequently asked questions
What does the ground (earth) symbol look like?
On ANSI drawings: Three horizontal lines of decreasing length. In IEC 60617: The same three lines.
Is the ground (earth) symbol the same in IEC and ANSI?
Yes, it is drawn the same way in most legends.
Where is a ground (earth) used?
Earthing of equipment and systems, and the 0 V reference on circuit diagrams.
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