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Wiring GFCI
How to wire GFCI
Wiring diagrams also apply to AFCI (arc fault) devices
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If garage freezer or basement sump pump are on GFCI circuits
GFCI notify ... alerts when GFCI has tripped
Use only 600 volt wire.
Lamp cord, extension cords are not rated 600 volt.
Use copper wire only. Aluminum wire is fire risk and should be avoided or installed by professional.

30 amp breaker use 10 gauge /
120-240 volt 30 amp outlet can be installed on 30 amp breaker only/ use 10 gauge wire ... cannot be connected to 15-20-40 amp breaker.

Orange/ #10 gauge wire, with ground ... 30 amp capacity. Safe maximum: 30 x 80% = 24 amps.
Buy:
10-2 gauge/ 30 amp
10-3/ 30 amp
Southwire electric tools
Yellow 12 gauge 20 amp
120 volt 20 amp outlet can be installed on 20 amp breaker, but not 15 amp breaker/ use 12 ga wire.
... cannot be connected to 30-40 amp breaker. 1

Yellow/ #12 gauge wire, with ground ... 20 amp capacity. Safe maximum 16 amps.
Buy:
12-2 gauge/ 20 amp
12-3/ 20 amp

NMB is house wiring
UF is underground
Rolls of stranded wire
HOOK UP Wires
White 14 gauge 15 amp
120 volt 15 amp outlet, AFCI, GFCI, timer, switch etc can be installed on 15 or 20 amp breaker. Never connect 15 gauge wire to 20-30-40 amp breaker.

White/ #14 gauge wire,  with ground ... 15 amp capacity. Safe maximum 12 amps.
Buy:
14-2 gauge/ 15 amp
14-3/ 15 amp

NMB is house wiring
UF is underground
50-60 amp breaker use 6 gauge /
240 volt 50 outlet can be installed on 50 amp breaker only
6-2 wire
Buy:
6-2 wire
Southwire electric tools
NMB is house wiring
UF is underground
40-50 amp breaker use 8 gauge /
240 volt 40 amp outlet can be installed on 40 or 50 amp breaker only
6-2 wire
Buy:
8-2 wire
Southwire electric tools
NMB is house wiring
UF is underground
     
Copper ground wire.
Every device, load, metal enclosure etc must be grounded. Ground wire must be continuous throughout installation, never switched on-off, never used as a Neutral wire.
Generally ... use same size as other wire in circuit
Buy:
12 gauge copper ground wire
Ground wire
Green ground wire
Ground pigtails
Ground rods/ ground clamps at Amazon
armored cable
Non metallic flexible cables must carry ground wire, but do not have hazard of short circuit causing injury from shock.

Armored steel cable can be used as a grounded connection, and will protect wires from damage. Metal can be energized from an insulation failure.

All conduit ...metal, plastic ... flexible and rigid ... must be attached to structure, and attached to enclosures, boxes.
Movement, damage and deterioration are major cause of electrical failure.
Buy:
Non-metallic flexible conduit
Power whip
Armored cable
Southwire armored cable cutter
Pull boxes
Southwire armored cable cutter
Electrical tools must be insulated.
Always best to disconnect power, but insulation failure, lack of proper grounding, grounded neutral, lack of GFCI, out-of-code wiring, generator operating without transfer switch, and other problems still pose a risk to anyone working on electric power ... even when breaker is off.

Buy:
Electrician tools kits
KLEIN TOOLS
Tools kits
IRWIN tools
KNIPEX

Telephone cable knife
Low Voltage Mounting Bracket for Telephone
Push on wire connectors

Push-on wire connectors in place of twist-on connectors

Buy:
Push on wire connectors Amazon
Red 3P connector for 10-14 gauge wire
Lever connectors for stranded wire at Amazon
HOOK UP Wires

Protect wiring from damage
Use nipper instead of pliers or screwdriver for removing staples (and nails). Do not damage cable or wires inside cable.

-Code says: Cable SHALL BE secured without damage to the outer covering. NEC sec. 336-15
Buy
End cutting nippers at Amazon


Electrically insulated tools
When removing insulation from wire, do NOT score or put cuts on surface of copper wire. Doing so increases resistance and heat on wire and creates possible weak point.
Buy tools:
KLEIN TOOLS
Wire strippers at Amazon
Electric Wire Stripping Machine
Linesman pliers
Utility knife at Amazon
multimeter
Multimeters
Voltage is tested across two separate wires. Ohms or resistance is tested across both ends of same wire. Amperage is tested along one or two points on same wire.
Buy:
Analog multimeter
Multimeters at Amazon
Klein multimeter
Electric testers at Amazon
Clampmeter for testing amp flow on line

GFCI circuit breaker
A GFCI circuit breaker will protect all boxes on circuit.

Circuit must be grounded. Ground wire must be continuous and connected to each piece of equipment.

White wire on circuit breaker must be connected to Neutral busbar inside the breaker panel.

Buy
GFCI circuit breakers
Push down
single-pole breaker
1" wide Push down breaker
Plug-in breaker
Buy single-pole:
Choose from 15 to 60 amp
Eaton CL series
Siemens 15-60 amp

Single-pole tandem breaker
Tandem breakers
Push down
double-pole breaker
2" wide Push down breaker
Plug-in breakers
Buy double-pole:
Choose from 15 to 125 amp
Choose from 15 amp to 200 amp
Eaton CL series circuit breaker
Siemens circuit breaker
Double pole GFCI
Combination GFCI
Combination GFCI
Switch & plug
Buy:
Eaton Combination GFCI
Combination GFCI  Amazon

Resources:
How to wire GFCI combo
GFCI receptacle
GFCI receptacle/ outlet
Buy:
Leviton GFCI receptacle

15 amp gfci outlet
20 amp GFCI outlet

Decora wall-plates
GFCI nite lite
Eaton GFCI nite lite
Buy:
Eaton GFCI w nite lite
Legrand GFCI night light
GFCI nite lights Amazon

Resources:
How to wire GFCI nite lite
GFCI nite lite
Leviton GFCI with LED lite
Buy:
Leviton GFCI w nite light
GFCI nite lights Amazon
Slim design for ez install

Resources:
How to wire GFCI w/ LED
Code for 15 and 20 amp GFCI outlets
Look at amp rating that is embossed into each GFCI outlet, or look at configuration of prongs.
15 amp GFCI can be installed on 15 or 20 amp breaker.
20 amp GFCI can be installed on 20 amp breaker only, but not 15 amp breaker (or any larger breaker 30-40 etc ). Use 12 gauge wire for 20 amp breaker.
For correct functioning, the GFCI circuit should be grounded. Inadequate or missing ground can delay protection and create hazard.
Buy
15 amp GFCI
20 amp GFCI
Portable gfci

GFCI receptacleApplication information:
A GFCI is not surge protection and does not protect appliances and equipment from volt-amp spikes, nearby lightning, etc.
GFCI is designed to turn off power instantly during an insulation failure where voltage reaches ground (earth). GFCI is designed to prevent electrocution. AFCI has same function as GFCI, except also responds to any arcing or insulation failure such as loose wiring connection.
Caution: just 1 GFCI (or AFCI) per circuit to ensure correct function and avoid frequent resets and failures.

Example 1
, when installation has GFCI circuit breaker:
GFCI circuit breakers are correct choice for 240 volt circuits. But GFCI breaker can also be handy for protecting all boxes on 120 volt circuit, for example a circuit going to detatched structure, or garage, or unfinished basement where GFCI is required.
If there is a GFCI breaker in the main box, it will protect everything on that circuit. Do not add another GFCI, or use GFCI plug in module or portable GFCI cord etc on that circuit. Note that GFCI can be added to other circuits that are not supplied by the breaker.

Example 2
, when installation has GFCI outlet:
Outlets are easier to test and replace than GFCI breaker, and might be best choice for 120 volt circuits.
GFCI can be wired to protect a single outlet, and multiple GFCIs around the house that are wired like this are fine.
GFCI can be also be wired to protect several 'downstream' outlets on a circuit. Downstream means outlets that are farther away from circuit breaker ... a typical circuit breaker provides power to all boxes on the circuit, one box after the other, each located farther away from breaker.
If circuit has GFCI outlet that protects several downstram outlets, that will protect anything plugged into any of those outlets. Do not add a another GFCI, such as GFCI plug-in module or portable GFCI extension cord etc.
Buy
15 amp GFCI
20 amp GFCI
Portable gfci

Safe operation and testing:
GFCI usually fail in OFF position, but for absolute safety "Due to complexity of GFCI: , it is necessary to test the device on a regular basis.
For permanently wired GFCI outlets and GFCI breakers, a monthly test is recommended.
Press test button on GFCI to simulate fault condition. Reset ensure the device is functioning.
**Portable type GFCI's should be tested each time before use.
GFCI's have a built-in test circuit which imposes artificial ground fault on the load circuit to assure that the ground-fault protection is still functioning. Test and reset buttons are provided for testing."
Resource: Safe electric wiring
How to wire outlet
Larger image
Start with ordinary outlet
Ground wire is connected exactly same on ordinary outlet and GFCI outlet:
Ground wires connects to green screws, and all ground wires are twisted together and covered with wire connector

Ordinary outlet has 1 Hot wire from circuit breaker and 1 Neutral wire from Neutral busbar.
Resource:
See inside main breaker box
Ground wire is not shown, and connects to green ground screw.

Ordinary outlets have screws on each side.
The Hot side screws feed power to the narrow blades.
The Hot side screws are brass, and Neutral side screws are silver.
The Hot side screws are bonded (electrically connected) to each other by break-away fin. So wire that is connected to one screw also feeds power to other screw.
To separate brass screws on Hot side, remove break-away fin

The Neutral side screws are also connected to each other by a metal plate.
GFCI outlet
Look on back of device for marks identifying Line and Load
GFCI outlet is different than ordinary outlet
Hot side has narrow blade/ Neutral side has wide blade = same as ordinary outlet
There is no break-away fin because all 4 screws on GFCI are independent of each other

There are two set of screws on GFCI outlet, same as ordinary outlet.
Except each screw is independent and not connected by metal. So all 4 GFCI screws are independent.
Back of GFCI device identifies Line screws and Load screws.
Load screws are usually covered with yellow tape when device is fresh out of box.

Hot and Neutral wires from breaker box attach to Line screws, as illustrated.
At this point, anything plugged into the GFCI outlet is protected from fault.
Both outlets are GFCI protected at this point, and Load screws are not used

1) Load screws are usually covered with yellow tape when device is purchased. This indicates that GFCI is wired differently than ordinary outlet.

2) If you want more outlets and switches protected by same GFCI, then attach wires to Load screws, as illustrate below.
3) If you do NOT want GFCI protection on subsequent outlets and switches, then attach wires to Line screws, as illustrated below.
Buy:
GFCI outlets at Amazon
Add extension ring or box extender if more space is needed for GFCI
Use extension ring when installing GFCI into shallow box.

Buy:
Electric box extension 1/2
Electric box extension
Weatherproof Extension Adapter


Resource:
Add GFCI-protected freeze outlet
How to add GFCI to pocket door
connect freeze to GFCIOutdoor GFCI can be coverted to freeze outlet
You can add GFCI-protected outlet outdoors by drilling through the back of a box, drilling through to outdoors, then installing outdoor metal or plastic box... the GFCI  can be located inside or outdoos depending on your wiring, but freeze thermostat must be located outdoors
Buy:
Freeze thermostat
Electric box extension 1/2
Electric box extension
Weatherproof Extension Adapter

Resource:
GFCI-protected freeze outlet

GFCI outlets
Look on back of GFCI device for marks identifying Line and Load
Connect additional outlets or switches to GFCI

All devices connected to Load screws ARE GFCI-protected

This is true for switches and outlets

Maximum 12 boxes per circuit breaker.
A circuit consists of all boxes on 1 circuit breaker

Buy:
GFCI outlets at Amazon

Look on back of GFCI device for marks identifying Line and Load
Devices connected to Line screws are ARE NOT GFCI-protected

This is true for switches and outlets.
This technique lets installer put GFCI in bathroom, but other outlets in bedroom are not protected for example.

Maximum 12 boxes per circuit
A circuit consists of all boxes on 1 circuit breaker
GFCI outlet and switch wiring All devices connected to Load screws ARE GFCI-protected


Outlets, switch and light fixture are GFCI protected with connected to Load screws
Resource:
How to wire switches
GFCI combo device
Cooper VGFS15V-M-L
Look on back of device for marks identifying Line and Load

Line and Load screws on combo device are wired identical to ordinary GFCI outlet illustrated top of page 
How to wire GFCI Combo switch and outlet

With the combo GFCI device, both the outlet and switch are GFCI protected.
The light fixture will connect to switch output wires.
Light fixture is GFCI protected
Line and Load screws are identified on back of device

Example Combo devices:
Buy:
GFCI combo outlet switch at Amazon
 

Ordinary combination switch and outlet

Combination switch outlet
Ordinary switch-outlet combo
Larger image
Start with ordinary combo device
TAKE PHOTO OF WIRES BEFORE STARTING
Wires from ordinary combo device will each be connected differently when connected to GFCI combo.
NOTE: illustration shows Ordinary combo device before GFCI.
Screws and wires are labeled: Brass screws #1 #2 #3, and wires 1 2 3 4.  The box may have more wires. Note which screw each wire connects to. Note which wires are on same side as narrow blade, and which wires are on wide blade.
Remember the outlet has a wide blade and narrow. The narrow is Hot side.

Illustration shows ordinary combo device.
Illustration shows Hot and Neutral 
Illustration shows wire  connects to brass screw #3 > and this wire will not connect to a screw on GFCI combo.
Illustration shows  connects to Neutral  > these two wires will not be connected together on GFCI combo, so remove wire connector.

Step 1: Identify the Hot and Neutral wires using test shown above.
Read steps above How to test for Hot and Neutral.
Hot will connect to narrow-blade side of device
Neutral will connect to wide-blade side of device

Step 2: Identify both wires that go to light:   
Illustration shows that wire  is connected to Brass screw #3, and wire  is connected to Neutral wire with wire connector. 
Notice that brass screw #3 is on wide-blade side of device.
GFCI outlet
Larger image
Another image
Illustration shows typical GFCI combo device.
Your device can vary slightly
GFCI combo will have switch output wires sticking out of back.

Step 4: Identify Line and Load screws
Look on back of GFCI device for markings that show Line and Load
Usually the Load screws are covered with yellow tape when fresh from manufacturer

Step 5: Connect Hot and Neutral to Line screws as illustrated
Hot  connects to brass Line screw on same side of device as narrow outlet blade.
Remember the outlet has a wide blade and narrow blade.
Neutral  connects to other Line screw

letter H and 
 are the two black wires on back of GFCI combo switch
letter H wire is located on same side of device as brass screws/  is located on same side as silver screws

Step 6 Connect light
Connect black wire 
letter H to Line side Hot
Black Wire  is connected to black wire going to light
White Wire  is white neutral wire, and connected to Line neutral (same as 
)
No wires are connected to Load screws
SO THE LIGHT IS NOT GFCI PROTECTED
If you want the light GFCI protected, then see next illustration below

GFCI combination switch and outlet


GFCI combination wiring
Larger image
Another image
If you want the light GFCI protected, then use this illustration
Connect black wire letter H to Load side Hot
Black Wire  is connected to black wire going to light
White Wire  is white neutral wire, and connected to Load screw neutral



Does it make a difference when Black and White to light are reversed? Yes. The light will work but wiring is not code and can pose danger...
... except the GFCI is designed to protect from that danger.
Resource:
Troubleshoot household electric

Larger image
Step 7: If there are more wires in the box:

If the light switch controls more than 1 light fixture, then look for additional black wire connected to brass screw #3 on original combo device. 
These additional wires will connect in parallel.
All household electric wiring is parallel to ensure uniform voltage across all circuits
If lights are wired in series, it causes voltage drop and lights dim

Resources:
Volts x amps = watts
Formulas and terminology
Figure volts amps and watts
What are amps

Larger image
Step 8: If there are more + wires in the box:
Read all steps shown from top of this page so this explanation makes sense.

If the box also feeds power to another box (with other switches and outlets or lights), then look for additional black wire connected to black screw #2 or screw #1 on original combo device. 
Remember the wire from the circuit breaker travels from one box to the next and to the next. 
Resource:

Basic household wiring

Connect the additional wires to the Load screws as shown in illustration if you want GFCI protection for other boxes -or- connect these wires to the Line screws if you do NOT want GFCI protection on other boxes.

Ground wires are not shown: Connect to green ground screws, and are twisted together and covered with wire connector.
Resource:
Why you need ground wire
"The GFCI contains a sensor that monitors strength of magnetic field around both the Hot and Neutral wires when current is flowing. The magnetic field around the wire is proportional to amount of current flow."
''Note that the GFCI will open the circuit if 5 mA or more of current returns to the service entrance by any path other than the intended white (grounded) conductor. If the equipment grounding conductor is properly installed and maintained, this will happen as soon as the faulty tool is plugged in. If by chance this grounding conductor is not intact (disconnected or missing) and not low-impedance (low resistance), the GFCI may not trip out until a person provides a path. In this case, the person will receive a shock, but the GFCI should trip out so quickly that the shock will not be harmful.''

''Ground-Fault Circuit-Interrupters are divided into two classes: Class A and Class B.
The Class A device is designed to trip when current flow, in other than the normal path, is 6 milliamperes or greater. The specification is 5 milliamperes ± 1
milliampere. The Class B device will trip when current flow, in other than the normal path, is 20 milliamperes or greater.''
Ground-Fault Circuit-Interrupters are divided into two classes: Class A and Class B.
The Class A device is designed to trip when current flow, in other than the normal path, is 6 milliamperes or greater. The specification is 5 milliamperes ± 1 milliampere. The Class B device will trip when current flow, in other than the normal path, is 20 milliamperes or greater.

Troubleshoot GFCI

Resource: GFCI will not reset
Spa is tripping GFCI
How GFCI works
How GFCI protects you
Troubleshot GFCI with FAQ

GFCI manuals

Resource: Pass and Seymour Combo-GFCI manual
Leviton Combo-GFCI manual
Lutron GFCI outlet manual
GFCI pilot light manual
Leviton GFCI-related manuals
Installing and testing GFCI
Arc Fault circuit breaker
AFCI-GFCI circuit breaker installation and troubleshoot/ pdf
AFCI operation, installation and troubleshoot
GFCILarger image
What is GFCI?
Ground fault outlet detects grounded circuit that can potentially electrocute you.
For example:. You plug-in extension cord. Then use power tool while standing in water. Or wet grass. Electricity wants to flow to ground through easiest path. Since you are standing on wet ground, electricity can jump from power tool and race through your body to ground. 
This will kill instantly. 
GFCI instantly detects open circuit, and cuts power so electricity is stopped.

Same can happen while holding electric shaver and touch metal faucet. Faucets are grounded because metal pipe is enters the soil or ground outside the home. Homes with plastic or pex plumbing might not conduct to ground, but risk is present so GFCI is code in each bathroom, kitchen, laundry, outdoor plugs, anywhere water and electric outlets are both present.
Outdoor plugs, kitchen plugs and bathroom plugs are GFCI protected.

Grounding is important: If tool, appliance, extension cord etc are not grounded, it will delay GFCI from tripping. GFCI will trip after very brief delay ... person may experience shock, but results are usually not fatal.

What is a ground rod
Take a metal pole or pipe or rod. For household electric service, use copper ground rod from hardware store.
Hammer the metal into the dirt. The deeper, the better. Up to 8 feet deep.
Attach piece bare copper wire using grounding clamp.
Use tester, Test between bare copper wire and Hot side of outlet (the narrow blade), and it will show live power potential. 
You can be a ground rod whenever standing on bare ground. Or by touching any metal that goes into the ground, like a water pipe, or faucet connected to the water pipe. GFCI protects you from ground faults.
Ground wire is not discussed further on this page.
See electricity from power pole to breaker box
Outlet polarity       GFCI outlet testerPolarity and grounding
Wires should always connect to correct side of outlet.
Wide blade is Neutral. Narrow blade is Hot.
Many appliances and TVs have polarized plug. This is so Hot and Neutral can work correctly with electronics inside device. If outlet is wired incorrectly, then appliances and timers, GFCI's etc don't work as expected.
Buy:
GFCI tester
Resources:
How to wire 240Volt outlets
How to wire 3-phase outlets
Wire connectors
How to identify Hot and Neutral wires
Following description does not mention ground wires. All ground wires are either twisted together or attached to green ground screw exactly like ordinary outlets, and are not immediately important for understanding how to wire GFCI.
So which wire is Hot and which is Neutral?
1) Each residential box (excluding 240Volt boxes, 3-way switches, and some single light switches) will have 1 Hot wire and 1 Neutral wire that comes from circuit breaker.
For example each circuit breaker supplies power to one area of home. To do this, the Hot wire and Neutral wire leave breaker box and travel to a junction box. The junction is usually a ceiling box where light fixture is attached. But any box can be a junction box. From the junction box, the Hot and Neutral split off and jump from one box to the next box, and to the next box. The very last box will have 1 Hot and 1 Neutral, and no additional wires. So each box between the last box and the junction box will have several wires.
Despite having several wires, there will be only 1 Hot and 1 Neutral in each box. Hot wires are usually black
Each switch will connect to Hot wire, but not to Neutral.
Each outlet will connect to both Hot and Neutral. So if you see a Black wire that connects to both a switch and outlet, then that is the Hot wire.
Neutral wires are usually white and are twisted together and covered with wire connector, then pushed to back of box
GFCI has an outlet, so it will connect to both Hot and Neutral, just like ordinary outlet.
To identify the Hot and Neutral: Take photo of wires so everything can be put back. Separate all wires except bare ground wires. Tape tester leads to wood sticks for safety. Stand on dry boards, and never on wet surface. Turn power on. Test each wire to bare ground wire. Only 1 wire will light up tester. This is the Hot wire. Next test Hot wire to all other wires except bare ground. Tester will light up on Neutral wire.
So the Hot and Neutral are identified, and these wires will connect to the GFCI Line Screws.


Spa tripping GFCI
Troubleshoot Spa tripping GFCI
Heated bathtub tripping GFCI
Turn power off.
DO NOT BY-pass GFCI.
DO NOT use this spa until problem is found.
1) Check for water leak on tub, especially around electrical connections, switch, etc.
2) Test heating element for ground fault. Power is OFF. How to test element
GFCI will not reset
3) Install new GFCI and see if that is the problem
4) Use multimeter set to read ohms (continuity) and check each part to ground... while electricity is off
Multimeter
Test for breaks in wire/ Test for voltage
Test for continuity
Most appliance require 80% rated voltage to function correctly
Buy:
Multimeters at Amazon
Electric testers at Amazon
2-pole circuit breaker     gfci breaker            
Tandem          GFCI breaker        Surge protection types
Circuit breaker resources
Water heater is tripping breaker
How to replace circuit breaker
How to wire gfci
Can AC breaker be used for DC breaker
How to reset circuit breaker
Not enough space for circuit breakers/ use tandem
Circuit breakers
How to install subpanel
Why you need ground wire
See inside breaker box
How to wire safety switch
How to wire whole house surge protector
Figure volts amps and watts
Figure correct wire and breaker
Types of surge protection
Intermatic IG1240RC3 Whole house surge protector
How to wire whole house surge protector
GFCI circuit breakers
Larger image
GFCI circuit breakers
Single pole and double pole
White wire connects to Neutral busbar.

Avoid double GFCI protection

Buy from my affiliate links:
Single pole GFCI at Amazon
GFCI breakers at Amazon






CH and BR breaker
How to wire 1-pole 120Volt GFCI circuit breaker
Single pole
Hot wire(s) connect to breaker in ordinary way.
White neutral to Load connects to breaker
GFCI breaker coiled white wire connects to Neutral busbar
Bare ground wire connects to ground busbar in ordinary way.
120 Volt GFCI breaker

120Volt Breaker
Ordinary non-protected breaker
120 volt circuit breaker
120Volt arc fault breaker
120Volt GFCI
Hot and Neutral connect to arc fault breaker
White wire from breaker connects to Neutral busbar
120 Volt arc fault breaker
Buy:
GFCI circuit breakers


GFCI in breaker box
Larger image
How to wire 2-pole 240Volt GFCI circuit breaker
Illustration shows 2-pole 208-240Volt GFCI.
The ordinary 240Volt breaker does not have white wire
The GFCI 240Volt breaker has white wire that connects to neutral busbar.
Buy:
240 volt GFCI breaker
GFCI circuit breakers

GFCI 2-pole breaker
Larger image
GFCI 2-pole breaker
Illustration shows 2-pole 208-240Volt GFCI.
Wires leave GFCI and travel to T104 timer, before going to pool pump.
National electric code requires 2-pole breaker for 240Volt circuit  Read more
Ground wire not shown. Circuit MUST be grounded

Buy:
240 volt GFCI breaker
GFCI circuit breakers

Resource:
How to wire T104 timer
How to wire arc fault breaker
Arc fault breaker

Ordinary circuit breaker
Resource:
How to replace circuit breaker



CH Type 120Volt Arc fault breaker
GFCI protection
Also mitigates damage from arcing fault

Instructions:
Breaker stabs onto busbar.
Hot connects to breaker in typical fashion.
White Neutral connects to breaker.
Coiled White connects to Neutral busbar.
Resource:
AFCI-GFCI circuit breaker installation and troubleshoot/ pdf
Eaton AFCI-GFCI/ pdf
How to Install a Ground Fault Circuit Breaker/ pdf
Installation Instructions for G-Frame Ground Fault Circuit Breaker/ pdf
Arc fault breaker troubleshoot/ pdf
Arc fault breaker BR Type 120Volt Arc fault breaker
GFCI protection
Also mitigates damage from arcing fault

Instructions:
Breaker stabs onto busbar.
Hot connects to breaker in typical fashion.
White Neutral connects to breaker.
Coiled White connects to Neutral busbar.
Resource:
AFCI-GFCI circuit breaker installation and troubleshoot/ pdf
Wall switches are generally rated 120-277 volt AC.
Look for volt and amp rating embossed on the electrical device. Do not exceed rating.
Using 20 Amp switch on a 15 Amp circuit is potentially dangerous. It is acceptable to use 15 Amp switch on a 20 Amp circuit.
For 240 volt applications, use double-pole switch.
For other voltages, such as 480-347-600 volt etc, and for 3-phase applications, use switch or timer to activate contactor.
30 amp switch
Cooper 30 Amp switch
Single-pole/ 2-pole on-off switches
Buy:
30 amp 2-pole switch
30 amp industrial grade
30 amp double-pole

Heavy duty double-pole switches to turn off both hot wires in 240 volt circuit.
Always rated 240 volt.
Buy:
30 amp motor switch
40 amp motor switch
30 amp DPDT
Double pole double throw 30 amp switch
DPDT switch can be used to toggle between 2 different voltages.
Buy:
30 amp DPDT switch

Resource:
Use this switch to toggle water heater between 120-240 volt
Ordinary 15-20 amp
single-pole switch
Ordinary 15-20 amp toggle switch.
Buy:
15 amp switch
20 amp switch
pilot light switch

Indicator light shows when Load is ON.
Buy:
Pilot light switch
Resource:
How to wire pilot light switch
GFCI Switch
Combination GFCI
Requires neutral wire. Add GFCI outlet to same box as switch.
Buy:
Leviton Combination GFCI
Combination GFCI  Amazon

Resources:
How to wire GFCI combo
Combination Switch
Combination switch outlet
Requires neutral wire. Add outlet to same box as switch.
Buy:
Combination switch outlet

Resources:
How to wire GFCI combo
3 & 4-way switch
4-way switch

4-way switch is used with two 3-way switches to add more switches to control one light.
Always rated 120-277 volt.
Buy:
4-way switch
Double & triple switch

Multiple switches in one box.

Buy:
Double switches
Triple switches
Center off Switch
Center off Switch
Momentary contact
Use to activate delay timer or sound bell.
Buy:
Center off Switch

Resources:
How to wire delay timer
Electricity leaves power plant What is 3-phase electric: power plant to end user

Contactors/ relays
Type 1 and type 2 surge protection surge protection
Programmable timers

Woods timers
surge protection
Buy
Electronic parts

Industrial supplies

Tools and home improvement

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