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Rule of thumb: the hot wires connect to side of outlet.
Resources: safe electric wiring
Horsepower rating of plugs and receptacles
Always connect ground wire
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Waterheatertimer on Pinterest |
How to wire 240 volt outlets and
plugs Rule of thumb: the hot wires connect to side of outlet. Resources: safe electric wiring Horsepower rating of plugs and receptacles Always connect ground wire |
| 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 |
| 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 |
 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 |
 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 |
 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 |
Double-pole 240 volt
breaker QP type 2" wide Plug-in breakers Buy double-pole: Choose from 15 to 125 amp |
| Basics | |
 The hot wires connect to brass-colored screws located on side |
Look for screw color on outlet Brass (or black) for Hot, Silver for Neutral, Green for ground Some outlets do not have color-coded screws. Hot wires can be Black-Red or Black-White Green screw => bare copper or green ground wire. ALL OUTLETS MUST BE GROUNDED. Silver screw => Neutral. Neutral is not required for 240 volt. More detail: BY code, if outlet has 4-prongs, then it must be connected to 4 wires that come from breaker box, consisting of 2 Hots, a ground and a Neutral ... If there are only 3 wires from breaker box, consisting of 2 Hots and a ground, then install 3-prong outlet .... If you have 4 prong outlet, but only 3 wires from breaker box ...and no neutral wire is available ... you can temporarily skirt electric code, and connect no wire to the W terminal. This creates no fire or shock hazard. |
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Image
shows 2 hot wires with ground. 2 Hot wires and 1 ground wire. Hot wires can be red and black -or- white and black Either hot wire can connect to either brass terminal Look for color of screws when wiring outlets Green for ground, Hot1 and Hot2 connect to either brass-or-black screw. Outlet might not have neutral wire. Neutral not required for 240 volt Ground connection: Look For green screw. More detail: If you have 3-prong outlet, but have 4 wires coming from breaker box, consisting of 2 Hots, a ground and a Neutral, then cap off the Neutral wire. Capping off Neutral wire creates no fire or shock hazard, as long as twist on connector is very tight and covers all bare copper. Never connect Neutral to ground screw. Never connect Neutral and ground wire together on same screw. Resource: 240-volt-plug-has-3-outlets-but-box-has-4-wires |
 Twist Lock |
Image
shows 2 hot wires with ground Hot wires can be red and black -or- white and black Either hot wire can connect to either brass terminal Look for Markings on device: X and Y are for Hot wires, and G is for ground, W for Neutral. If there is no W, then no Neutral is used. Notice shape of blade slots: the odd shape is ground. |
  Hot wires can be Black-Red or Black-White Neutral not required for 240V |
How
to test for 120 volt or 240 volt How to know if wire carries 120V or 240V? Tape tester leads to wood sticks, and stand on dry wood boards. Never stand on outdoor ground soil, or touch or lean into metal. Put down dry boards. Separate wires for testing. Test each wire to bare ground wire. If both wires test for power to ground, the circuit is probably 240Volt. Use multi-meter to confirm exact voltage. Test each wire to bare ground. If tester shows power then wire is Hot Buy: Electrical testers |
| 240 volt circuits | |
 Larger image Single-phase 240 volt outlet is marked X-Y-W-G or X-Y-G X and Y are Hot, W Neutral, G ground 120V and 240V need two wires to complete circuit, plus ground wire for safety. 120V requires 1 hot and 1 neutral. 240V requires 2 hots. Neutral is not needed for 240volt electric circuit, but is sometimes included on electrical device. NOTE: you cannot put all 9 of these devices on same breaker since some are 30 amp and some are 50 amp. Illustration only shows how to connect wires to XYWG terminals. Resources: See inside main box Figure volts amps watts Select correct wire and breaker Electrical formulas Commercial 3-phase outlet is marked X-Y-Z-G or X-Y-Z-W-G Resource: How to wire 3-phase |
| NEC (National
electric code) 120 volt outlets / receptacles 120 volt 30 amp
outlet can be
installed on 30 amp breaker only
120 volt 20 amp outlet can be installed on 20 amp breaker, but not 15 amp breaker/ use 12 ga wire 120 volt 15 amp outlet, AFCI, GFCI, timer, switch etc can be installed on 15 or 20 amp breaker Wire size must match breaker rating, and device terminals rated for wire size 240 volt outlets/ receptacles 240 volt 50 amp outlet can be installed on 50 amp breaker only/ use 6 or 8 ga wire 240 volt 40 amp outlet can be installed on 40 or 50 amp only 240 volt 30 amp outlet can be installed on 30 amp breaker only/ use 10 gauge wire 240 volt 20 amp outlet can be installed on 20 amp breaker, not 15 amp breaker 240 volt 15 amp outlet can be installed on 15 or 20 amp breaker Wire size must match breaker rating, and outlet terminals rated for wire size |
 Buy: NEC books Dewalt plumbing/ electrical codes Basic electric book National electric code guide/ illustrated |
 Household NM-B Wires are color-coded so inspectors/ electricians can easily identify which wire is used during construction |
Match
wire size and breaker amp rating If your home was wired by professional electrician who pulled permits, then circuit breaker and wire size will match. If manufactured home or travel trailer has not been altered by homeowner then breaker and wire size will match. If breaker is oversized for wire... fire danger Breaker can let too much amperage travel through the wire. Wire can overheat and cause fire. Call electrician if you suspect wiring is not correct, Absolute electrocution danger when removing cover off main panel. More information below. Main breaker terminals are still Hot when main breaker is turned off. Use 600 volt solid copper wire only Do not use stranded wire inside main breaker box or any permanent box. Stranded wire can be used for extension cord connectors and plugs. Do not use extension cord for permanent household wiring Extension cords are used for connectors and plugs only. Read more about uses for extension cords Buy: Southwire at Amazon |
 Code
says: Use connected/ double-pole breaker for 240 volt
Against code: Use 2 single breakers to supply 240 volt, unless the switches are connected and rated for same amps If double breaker is rated for 30 amp, then BOTH sides of the breaker are each 30 amp (not 15 each) Power is doubled with 240 volt vs 120 volt, amps are not halved Wire size and breaker size must match. Resources: How to replace circuit breaker Not enough space in breaker box Safe electric wiring |
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Tandem
breakers This panel has several tandem breakers Each tandem fits over one busbar, and pulls double duty, supplying two separate circuits and increasing number of breaker circuits. You cannot draw 240 volt from one tandem breaker.. But if two tandem breakers are side-by-side, then 240 Volt is possible. For 240Volt, select the inside terminals... one from each tandem breaker. Connect 240V wire to these two terminals. To meet code, notice there is a connector bar (color reddish) that physically joins the two switches. If you are connecting 20 amp 240 volt, then both breakers must be 20 amp. In other words, 20 amp 240 volt breaker is NOT two 10 amp breakers, and both legs are pedaling the bike at 20 amps, and not 10 amps apiece. This question arises among electricians. Buy: Tandem breakers at Amazon Difference between single phase and 3-phase |
| 30-50 amp plugs
and outlets Dryer cords 30-40 amp Range cords 40-50 amp |
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| 30-50
amp/ 3-prong/ range 10 gauge wire for 30 amp 6 gauge wire for 50 amp  |
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 50 amp flush outlet Buy: Levi ton At Amazon All 50 amp flush outlets Outlet cover |
 50 amp surface-mount outlet Buy: Eaton At Amazon Pass & Seymour At Amazon Forney portable plug |
 50 amp plug Buy: Legrand At Amazon Forney At Amazon |
 30-50 amp pigtails Buy: Whirlpool 40 amp 4' Certified 30 amp 6' Coleman 50 amp 8-3 50 amp power cord 50' 6-4 60 amp cord 100' |
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 50 amp flush outlet Buy: At Amazon At Amazon 30 amp flush outlets Outlet cover |
 50 amp surface-mount outlet Buy: At Amazon Surface mount receptacles |
 50 amp plug Buy: Eaton At Amazon |
Wire: 10 gauge wire for 30 amp 8 gauge wire for 50 amp no pigtail/ cord |
| 30
amp/ 3-prong/ dryer 10 gauge wire for 30 amp  |
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 30 amp flush outlet Buy: Levi ton At Amazon Leviton At Amazon Outlet cover |
 30 amp surface-mount outlet Buy: Eaton At Amazon Leviton At Amazon 30 amp surface mount |
 30-50
amp plugBuy: Leviton At Amazon |
No
pigtail/ cord Buy: 30 amp outlet covers Oversized 2 gang plate |
| 30
amp/ 3-prong/ dryer 10 gauge wire for 30 amp  |
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 30 amp flush outlet Buy: Legrand At Amazon Leviton At Amazon Outlet cover |
 30 amp surface-mount outlet Buy: Eaton At Amazon Pass & Seymour At Amazon |
 30-50 amp Plug Buy: Forney At Amazon |
Pigtails Buy: Whirlpool 30 amp 4' Certified 30 amp 6' Certified 30 amp 10' Coleman 50 amp |
| 30
amp/ 4-prong/ dryer 10 gauge wire for 30 amp  |
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 30 amp flush outlet Buy: Leviton At Amazon |
 30 amp surface-mount outlet Buy: Eaton At Amazon |
 30 amp Plug Buy: Hubble at amazon 4 prong plugs |
 Pigtail Buy: Coleman 30 amp 4' Coleman 30 amp 6' Certified 4-5-6-10 foot 10-4 30 amp power cord |
50
amp/ 4-prong/ RV 120 volt and 240 volt |
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 30-50 amp flush outlet Buy: Legrand At Amazon Leviton Outlet cover |
 50 amp surface-mount outlet Buy: Eaton At Amazon 50 amp surface mount |
 50 amp Plug Buy: Legrand At Amazon Power grip at Amazon |
Pigtail Buy: GE 50 amp at Amazon 50 amp pigtail to 30 amp 30 amp pigtail to 50 amp Coleman 50 amp 4-5-6 foot |
| Electric Car | ||
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Electric Car Use receptacles shown above Wire as shown using 30 amp breaker + 10 gauge wire/ up to 100' away... longer distance, use 40 amp breaker and 8 gauge wire. Buy: Car charger straight-blade Car charger L-blade Adapter: 3 prong dryer plug to electric car Electric connectors Resource: Color code for wire |
 3 prong dryer plug to electric car Buy: Adapter: 3 prong dryer plug to electric car Electric connectors |
 'Toggle between water heater and car charger Larger image This can be accomplished with simple 3-way 30 amp switch: .... your 240 volt line has 2 hot wires.... take one hot wire and run it to both the charge station and the water heater ... connect the second hot wire to the common or different-colored screw on the 3 way switch. Second wire to water heater connects to one of the other screws, and second wire to charge station connects to remaining screw. Buy: 30 amp 3 way switch Tork TU timer/ 40 amp DPDT/ same wiring Tork DTU 7-day programmable timer 40 amp DPDT/ same wiring Intermatic GM40AV/ 40 amp DPDT/ same wiring Buy: Eaton At Amazon Pass & Seymour At Amazon Car charger straight-blade Car charger L-blade Adapter: 3 prong dryer plug to electric car Electric connectors Resource: How to wire the 40 amp DPDT timers |
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| RV connection | ||
 50 amp RV power outlet/ 120-240 Volt Buy: 50 amp RV power outlet at Amazon RV power outlets at Amazon RV electric panel |
 50 amp Power grip plug Buy: Camco Power grip at Amazon 30 amp power plugs |
 50 amp Power grip RV extension cord Buy: Camco 50 amp 30' Camco 50 amp 15' All RV extension cords 50 amp pigtail to 30 amp 30 amp pigtail to 50 amp |
 Nearly ALL RV Sites have a pedestal providing all 3 RV power sources - 50 amp 240V, 30 amp 120V, and 20 amp 120V A. 14-50R 240 vac / 50 amp B. TR-30R 120 vac / 30 amp C. 6-20R 120 vac / 20 amp Sounds like we need a separate page for travel trailer connections. Buy: RV power panel outlet box RV electric panel Resource Trailer 120 volt connection 50 amp connection Read the conversation about 120 volt RV wiring |
 For RV, the 50 amp is 240 volt and 30 amp outlet is 120 volt, not 240 volt, and wires are typically Black-white Hot-Neutral... with silver screw for Neutral ... see illustration below |
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| 20-30 amp Twist Lock | |
 Locking plugs/ twist lock Nema L5 (look at bottom of graphic for Nema category) is same configuration for 20P or 30P/ use for 15, 20 or 30 amp Nema L6 is same configuration for 20P or 30 P/ use for 15, 20, 30 amp Nema L14, 4-pole is same configuration for 20P or 30P/ use for 20 or 30 amp 125 volt 3-wire has silver, brass and green screws 250 volt 3-wire has brass, brass, and green screws 125-250 volt 4-wire has silver, brass, brass, green screws Buy: Leviton Leviton 2311 125V 20 amp 2611/ 125 volt/ 30 amp 2321/ 250 volt/ 20 amp 2621/ 250 volt/ 30 amp 2411/ 4-wire 125-250 volt/ 20 amp 2711/ 4-wire 125-250 volt/ 20-30 amp Resources: Locking plug Wiring diagrams |
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  Locking connectors/ twist lock Nema L5 (look at graphic for Nema category) is same configuration for 20R or 30R/ use for 15, 20 or 30 amp Nema L6 is same configuration for 20R or 30 R/ use for 15, 20, 30 amp Nema L14, 4-pole is same configuration for 20R or 30R/ use for 20 or 30 amp Buy: Leviton 2313/ 125 volt/ 20 amp 2613/ 125 volt/ 30 amp/ 2323/ 250 volt/ 20 amp C2623/ 250 volt/ 30 amp 2413/ 4-wire/ 125-250 volt/ 20 amp 2713/ 4-wire/ 125-250 volt/ 30 amp Resources: Locking receptacle Wiring diagrams |
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 You can use 30 amp twist lock for 15 or 20 amp circuit. But you cannot use 20 amp for 30 amp circuit. Locking receptacles Nema L5 (look at graphic for Nema category) is same configuration for 20R or 30R/ use for 15, 20 or 30 amp Nema L6 is same configuration for 20R or 30 R/ use for 15, 20, 30 amp Nema L14, 4-pole is same configuration for 20R or 30R/ use for 20 or 30 amp Buy: Leviton 2310/ 125 volt/ 20 amp 2610/ 125 volt/ 30 amp 2320/ 250 volt/ 20 amp 2620/ 250 volt/ 30 amp 2410/ 4-wire/ 125-250 volt/ 20 amp 2710/ 4-wire/ 125-250 volt/ 30 amp Buy double outlet 4550/ double/ 125 volt/ 15 amp 4700/ double/ 250 volt/ 15 amp Resources: Locking receptacle Wiring diagrams |
| Generator twist-lock connection | |
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Generator
outlet box wiring: 4-prong: All 4 prongs are locking. Rounded prong with upturn is ground connection. Prong located opposite ground is Neutral connection. If there is no neutral wire, then do not connect any wire to neutral. Other two prongs are for hot wires 3-prong: Rounded prong with upturn is ground connection. Other two prongs are for hot wires. There is no neutral connection Buy: Twist lock plug / 30 amp/ at Amazon Twist lock outlet / 30 amp/ at Amazon 4-prong 30 amp generator outlet Generator outlet boxes at Amazon 4-prong 30 amp generator outlet/ 7500 watt at Amazon 3-prong 50 amp generator outlet / 12,500 watt at Amazon Resource: How to wire transfer switch How generator works Connect water heater to generator |
| 15-20 amp 240 volt straight blade | |
  |
15
and 20 amp Plugs
Look at appliance rating. Install correct outlet and breaker. Use 15 amp breaker for 15 amp 240 volt. Use 20 amp breaker for 20 amp 240 volt. Buy 15 amp plug: Leviton 6-15P 240 volt 15 amp plug Buy 20 amp plug: Leviton 6-20P 240 volt 20 amp plug |
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15
and 20 amp Connectors
Look at rating plate of device for amperage Buy: 6-15R 15 amp connector Buy 20 amp connector: 6-20R 20 amp connector |
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240
volt 15
amp Receptacles
Look at rating plate of device for amperage Buy 15 amp receptacle 5029 brown, white, ivory single 5661-Cr yellow single 5089-I ivory single Decora white Stainless single cover plate Buy: Leviton single hole plates Stainless 2-gang plate You cannot plug two 15 amp 240 volt air conditioners into the same plug without running two separate 15 amp lines, on different breakers, to the receptacle. Buy: 5662 15 amp 240 volt receptacle double Leviton 6-15R 15 amp 240 volt receptacle Decora white |
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240
volt 20
amp Receptacles
Look at rating plate of device for amperage Buy 20 amp receptacle 5461 single 20 amp 240 volt receptacle 5461-W single 20 amp white Decora ivory Stainless single cover plate Buy: Leviton single hole plates Stainless 2-gang plate Leviton receptacle plate You cannot plug two 20 amp 240 volt air conditioners into the same plug without running two separate 20 amp lines, on different breakers, to the receptacle. Buy: 5462 double 20 amp 240 volt dual receptacle outlets 5822-W brown, ivory, white |
| 240-120 volt combination
receptacle This combination receptacle lets you plug in both 120 volt lamp and 240 volt window air conditioner. How to wire: Install 12-3 wire. Hots are connected to one double breaker inside breaker box, and Neutral is connected to Neutral busbar. Single breaker is not used. See image of 12-3 wiring inside breaker box  Option:
You
can draw a Neutral wire from any nearby 120 volt outlet or ceiling box,
and this Neutral connects to silver screw on receptacle,
however the 240 volt Hot wires must come from a dedicated breaker that
serves only that 240 volt receptacle.Caution for double receptacles: using 20 amp outlet (15 amp is pictured on left) You cannot run more than 20 total amps at one time. Volts x amps = watts For example if 240 volt window air conditioner pulls 16 amps, and you have 1500 watt 12.5 amp space heater on 120 volt plug, it will only work if neither is ON at same time. However if you are using 240 volt 16 amp air conditioner, and plug in 120 volt light with two 100 watt bulbs (200 watts), then the light will pull 1.6 amps and total amp draw is within capacity of 20 amp circuit. Buy: 15 amp Ivory, Brown or White 20 amp Ivory and brown Resource: Basic household wiring |
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 Larger imageChange 240 volt outlet into 120 volt outlet 1) Replace 240 volt outlet with 120 volt 2) In the breaker box, the 240 volt circuit has 2 wires that connect to double breaker. 3) Leave Black wire connected to breaker. 4) Remove other wire from breaker, and connect that wire to Neutral busbar. 5) Ordinary 120 volt outlets have brass screws on one side for Black Hot wire, and silver screws on opposite side for Neutral wire. 6) caution: To change 120 volt into 240 volt is not as easy unless the 120 volt is on a dedicated breaker that serves only that outlet. Normally 120 volt outlets are connected several lights and other outlets. The 240 volt circuit needs to be dedicated, so that only that 240 volt receptacle is served by that breaker. Buy: 240Volt outlet at Amazon 240Volt outlet at Amazon 240Volt outlet at Amazon 240Volt outlet at Amazon 240Volt plug |
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 20 amp air conditionerWindow air conditioner box in store shows voltage and type of plug. Volts x amps = watts. You cannot use all three 240 volt receptacles at the same time. Must install each receptacle on separate 20 amp breaker. Notice that all electric receptacles and lights are wired in parallel and never in series. Buy: 240 volt extension cords Leviton 5842 20 amp 120-240V outlet Leviton 5822 20 amp 240V outlet Leviton 5821 20 amp 240Volt outlet Resource: Basic household wiring |
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| 240 volt straight blade timers | |
 
|
20 amp 240 volt
timer Plug in timers Use for window air conditioner or appliance Buy: HB114 analog 20 amp timer BDT programmable 20 amp 240 volt Extra trippers for HB114 Air conditioner cords |
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15 amp 240 volt timer Buy: Titan programmable 15 amp 240 volt timer HB112 Analog 15 amp timer Titan analog 15 amp 240 volt timer Resource: Apollo timer manual |
| Wiring illustrations | |
Buy 3-wire locking/ 120-250 volt L6-30 locking outlets at Amazon L6-30 locking plugs at Amazon |
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 Example shows unusual case where 240Volt circuit has neutral and no ground wire. 240Volt circuit does not require ground wire, or neutral. Both Neutral and ground wires join inside the breaker panel, and are essentially serving same function. However, it is not code to complete 120Volt circuit using ground wire. So this example lets each outlet have 120volt capability. Notice that X and Y are Hot, W is Neutral, and there is no G for ground. |
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 Look for markings on device: X and Y are Hot, G is ground, W is Neutral L14-30 at Amazon |
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Voltage
converter: Step-up step down transformer 120 to 240Volt 240V to 120V Check wattage output Buy: 3000 watt transformer 750 watt transformer Step up step down |
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Convert
240Volt to
120Volt without neutral wire from breaker box. Square D 1000 watt output transformer (high voltage) Buck-boost transformers buck voltage down, or boost voltage up. This transformer bucks down voltage. Convert 240Volt to 120Volt without neutral wire from breaker box. Convert 480Volt to 240Volt or 120Volt Type 3R outdoor enclosure Wiring: 480Volt input connects to H1 H4, and then H2 and H3 are connected together 240Volt input connects to H1 H4, and then H3 connects to H1, and H2 connects to H4 240Volt output connects to X1 X4, and then X2 and X3 are connected together 120Volt output connects to X1 X4, and then X3 connects to X1, and X2 connects to X4 Buy: Square D transformers at Amazon Resources: Read about household single-phase electricity Read about 3-phase How to wire 3-phase timers |
| 3-phase
outlets and plugs Cooper phase wiring diagrams |
  Larger image Outlet shown can be used for 3-wire 3-phase or 2-wire single-phase. 3-phase is commercial electricity used to achieve higher average voltage and more efficiency. Voltages vary from 120-600 V depending on electric service and wiring is different than residential single-phase. Single phase requires 2 wires to complete circuit: either Hot-Hot for 240 volt or Hot-neutral for 120 volt, while 3-phase requires 3 Hot wires to complete each circuit: Hot-Hot-Hot. Single-phase is actually a derivative of 3-phase. Since 3-phase can have a Neutral wire along with the 3 Hot wires, one Hot wire and one Neutral or two Hot wires make single-phase... so commercial applications can use 3-wire 3-phase to run motors and process equipment while using ordinary 2-wire single-phase for lights etc. Buy: Locking receptacles at Amazon Twist lock plug / 30 amp/ at Amazon Twist lock outlet / 30 amp/ at Amazon 30 amp generator outlet Resources: How to wire 3-phase 3-phase electricity: from power plant to end user |
 3-phase Larger image |
 Typical single-phase household circuit Larger image |
 3-phase Larger image |
 3-phase Larger image |
 Typical household circuit Larger image |
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 Typical 120Volt household circuit Larger image |
 Typical 240V household circuit Larger image |
 Typical 120Volt household circuit Larger image |
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Buy
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