How to wire GFCI/ AFCI circuit breaker

GFCI circuit breakers

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GFCI/ AFCI circuit breakers
Single pole and double pole

Tip: Avoid double GFCI/ AFCI protection
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How to wire 1-pole 120Volt GFCI/ AFCI circuit breaker

Single pole GFCI or AFCI
   
Load means: outdoor subpanel, outdoor outlet, bath outlet, kitchen outlet etc
Hot wire going to Load connects to breaker in ordinary way.
White neutral going to Load connects to breaker instead of Neutral busbar.
So the white Neutral wire must be changed when switching to GFCI/AFCI breaker.
GFCI/AFCI breakers have coiled white wire.
The coiled white wire connects to Neutral busbar.
Bare ground wire connects to ground busbar in ordinary way.
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AFCI circuit breaker


Before: single pole breaker
120 volt circuit breaker
After: single-pole gfci/afci breaker

120 Volt arc fault breaker


240Volt GFCI
How to wire 2-pole 240Volt GFCI/ AFCI circuit breaker
The ordinary 240Volt breaker has 2 Hot wires.
Ordinary 240 volt breaker does not have white wire.
The GFCI/ AFCI breaker is the same with as ordinary breaker.
Be sure to match brand or type to fit your breaker box.
The GFCI/ AFCI 240Volt breaker has a coiled white wire.
The coiled white wire connects to neutral busbar.

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AFCI circuit breaker

240 volt GFCI breaker

Illustration of main breaker box
GFCI in breaker box
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Illustration of subpanel with GFCI breaker
main lug with GFCI
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Southwire wire and wiring accessories
 3-phase subpanel
Resources
How to install subpanels
Color code for wire
Figure volts amps watts


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