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ANSI duplex receptacle outlet plan symbol
US-style plan symbol for the standard duplex receptacle: a wall-mounted circle crossed by two parallel lines.
IEEE / ANSI
IEEE / ANSI · GFCI
ANSI GFCI duplex receptacle plan symbol
US plan symbol for a duplex receptacle with built-in ground-fault circuit-interrupter protection, tagged GFCI.
In plain English
What does ANSI GFCI duplex receptacle plan mean?
A GFCI receptacle includes a ground-fault circuit interrupter that trips on a small residual current, protecting people in kitchens, bathrooms, garages and outdoors. The plan uses the duplex receptacle form with GFCI or GFI written beside it.
A simple example
A GFCI receptacle can also protect downstream receptacles wired from its load terminals. Plans sometimes show this by tagging only the first device and noting protected outlets, so the installer must read notes to wire the line and load terminals correctly.
What the drawings help you do
The tag says protection is at the receptacle. It does not say whether a GFCI breaker in the panel would be acceptable instead, and it does not show which downstream outlets are protected unless noted.
This particular reference
US plan symbol for a duplex receptacle with built-in ground-fault circuit-interrupter protection, tagged GFCI. An IEC RCD-protected outlet performs a similar function under a different convention and tag.
- Terminal
- An identified point where a conductor connects.
- Rating
- A value stating the conditions for which equipment is specified.
- Schematic
- A drawing showing function and connections rather than physical appearance.
Read the source: IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams · Residual current device categories · Form factors of residual-current devices
IEEE / ANSI · GFCI duplex receptacle
US architectural electrical plan practice in the ANSI Y32.9 lineage, read alongside IEEE 315 context; independently drawn, not a certified IEEE or ANSI graphic.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
GA · GFCI
What it represents
A GFCI receptacle includes a ground-fault circuit interrupter that trips on a small residual current, protecting people in kitchens, bathrooms, garages and outdoors. The plan uses the duplex receptacle form with GFCI or GFI written beside it.
A GFCI receptacle can also protect downstream receptacles wired from its load terminals. Plans sometimes show this by tagging only the first device and noting protected outlets, so the installer must read notes to wire the line and load terminals correctly.
The tag says protection is at the receptacle. It does not say whether a GFCI breaker in the panel would be acceptable instead, and it does not show which downstream outlets are protected unless noted.
How to read it
- Check notes for downstream receptacles protected from the load side.
- Do not confuse GFCI with AFCI, which addresses arcing faults.
Information to show or reference
- Identify the protecting device for every protected outlet.
- Tag weatherproof covers where outdoors.
- Keep test button accessible.
A distinction that matters
An IEC RCD-protected outlet performs a similar function under a different convention and tag.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams
Graphic-symbol standards context and official status; not a source of reproduced artwork.
Residual current device categories
Manufacturer explanation of residual-current device types and categories.
Form factors of residual-current devices
Explains the physical forms residual-current protection can take, including socket-outlet integration.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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