Wiring GFCI
Wiring diagrams also apply to AFCI (arc fault) devices
Search using 
If garage freezer or basement sump pump are on GFCI circuits
GFCI notify ... alerts when GFCI has tripped
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Wiring GFCI |
How
to wire GFCI Wiring diagrams also apply to AFCI (arc fault) devices Search using
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  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  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 |
 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 |
 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 in place of twist-on connectorsBuy: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 |
 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 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 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 Switch & plug Buy: Eaton Combination GFCI Combination GFCI Amazon Resources: How to wire GFCI combo |
 GFCI receptacle/ outlet Buy: Leviton GFCI receptacle 15 amp gfci outlet 20 amp GFCI outlet Decora wall-plates |
 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 |
 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 |
 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  Application 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 |
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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. |
 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 GFCIUse 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 |
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 Outdoor GFCI can be coverted to
freeze outletYou 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 |
 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 |
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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 |
 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 |
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. |
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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 and are
the two black wires on back of GFCI combo switch wire
is located on same side of device as brass screws/ is
located on same side as silver screwsStep 6 Connect light Connect black wire to
Line side HotBlack Wire is
connected to black wire going to lightWhite 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 |
If you want
the light GFCI protected, then use this illustration Connect black wire to
Load side HotBlack Wire is
connected to black wire going to lightWhite Wire is
white neutral wire, and connected to Load screw neutralDoes 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 |
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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 |
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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.'' |
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| 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. |
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Troubleshoot GFCIResource: GFCI will not resetSpa is tripping GFCI How GFCI works How GFCI protects you Troubleshot GFCI with FAQ |
GFCI manualsResource: Pass and Seymour Combo-GFCI manualLeviton 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 |
 Larger imageWhat 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 rodTake 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 |
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 Polarity
and groundingWires 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. |
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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 |
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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 |
  
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 |
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Whole house surge protector How to wire whole house surge protector |
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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 |
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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. |
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120Volt Breaker Ordinary non-protected breaker  120Volt arc fault breaker 120Volt GFCI Hot and Neutral connect to arc fault breaker White wire from breaker connects to Neutral busbar  Buy: GFCI circuit breakers |
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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  |
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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 | |
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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 |
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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. |
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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 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 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 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 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 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 Momentary contact Use to activate delay timer or sound bell. Buy: Center off Switch Resources: How to wire delay timer |
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What is 3-phase electric: power plant to end user |
 Contactors/ relays |
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from my affiliate links every time/ thanks: Amazon As an Amazon Associate I earn from qualifying purchases Enter Amazon from any link on my site, fill cart with any item ... purchases pay small commission E-mail: geno03245w@gmail.com My response might end up in spam folder, check email folders Waterheatertimer on Twitter Message thru facebook |
