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How to wire twist lock plugs |
| 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 |
| Basic illustrations and information/ 120 and 240 volt |  I have to read ? |
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X-W-G is for 120 volt -with 1 Hot, 1 Neutral + ground X-Y-G is for 240 volt -with 2 Hots + ground X-Y-W-Z is for 120-240 volt typically found with generator -with 2 Hots, 1 Neutral + ground Resources: See inside main box Figure volts amps watts Select correct wire and breaker Electrical formulas Z is used for 3-phase and not shown here. Commercial 3-phase outlet is marked X-Y-Z-G or X-Y-Z-W-G Resource: How to wire 3-phase |
  1) Look
for voltage and amp rating.Each load and wiring device will have identifying markings that show volts and amps.  2)
Look letters on wiring deviceX and Y are for Hot wires, and G is for ground, W for Neutral 3) Pay attention to screw color Brass colored screw for Hot. Silver for Neutral . Green for ground. 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 4) Notice shape of blade slots: The ground blade has different shape. |
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| Match wire and breaker | |
 Resource: Select correct wire and breaker size |
Resource: Select correct wire and breaker size Not enough space for circuit breakers |
| 125-240 volt 20-30 amp Twist Lock | |
   You can use 30 amp twist lock for 15 or 20 amp circuit. But you cannot use 20 amp for 30 amp circuit. You can use a 4-wire twist-lock device with 3-wire installation. But you can not use 3-wire twist lock with 4-wire installation. You should never use 120 volt device for 240 volt circuit.... buy the correct rating for load. Why Leviton: quality materials (ie brass terminal screws) and durability over time. Why 125-250 volt ratings instead of 120-240 volt: incoming service voltage can vary at each location. |
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 L5-15 15 amp L5-15 15 amp plug 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/ 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 L5-15R plug 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 ✅✓ L7-15R 277 volt |
 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 |
| Combination twist lock/ straight blade | |
 Larger imageLeviton 4792 Common feed: Max amperage on total outlet 15A. 18-10 AWG Brass 8-32 Buy: 4792/ 15 amp 125 volt |
 Larger imageLeviton 4794 and 4795 Split feed: Use 2 separate wires. 18-10 AWG Max amperage on each outlet 15A. Buy: 4794/ 15 amp/ split 125 volt 2 Hot Feeds and 2 Neutral Returns Buy: 4795/ 15 amp/ split 125 volt 2 Hot Feeds and 1 Neutral Return |
| Twist-lock connection for generator | |
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Generator
outlet box supplies both 120 and 240 volt: Requires 2 Hot wires (H), 1 Neutral (N), and 1 Ground (G) Hot wires connect to X and Y terminals (brass or black screws), Neutral connects to W terminasl (silver screw), and ground to G or green screw 4-prong: 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: Is for 240. Rounded prong with upturn is ground connection. Other two prongs are for hot wires. There is no neutral  connectionBuy: 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 Resources: How to wire transfer switch How generator works Connect water heater to generator |
| 277-480-600 volt/ 3-wire (3 phase) |
 Larger imageNEMA / locking devices 480V 3Ø ... 3Ø means 3-phase voltage 3ØY ... 3-phase wye GR ... ground 277V, 480V, 347 and 600V are derived from 3-phase commecial service and not available for household wiring |
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277 volt locking receptacle 277 volt is derived from 3-phase 480-277 service. One Hot leg and a Neutral wire are pulled from the breaker box to create 277 volt potential Extreme danger from high voltage 480-277, wiring should be done by licensed electrician Buy: |
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 Note size difference. Amperage is heat. L7-20R has same blade configuration as higher-amp L7-30R, but 30 amp size is larger than 20 amp to handle greater heat on wire. Source |
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480 volt locking receptacles 480 volt is derived from 3-phase 480-277 service. Two Hot legs are pulled from the breaker box to create 480 volt potential Extreme danger from high voltage 480-277, wiring should be done by licensed electrician. Buy:
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 480 volt 3-wire with Ground |
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480 volt 3-phase 3Ø locking
receptacle/ non-grounding 480V 3Ø ... 3Ø means 3-phase 480 volt is derived from 3-phase 480-277 service. Three Hot legs are pulled from the breaker box to create 480 volt potential Extreme danger from high voltage 480-277. Buy:
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 480 volt 3Ø Non-grounding |
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600 volt 3-phase 3Ø locking
receptacle/ grounding 600V 3Ø ... 3Ø means 3-phase 600 volt is derived from 3-phase 600-347 volt service. Three Hot legs are pulled from the breaker box to create 600 volt potential Extreme danger from high voltage 600.
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 600 volt 3Ø with Ground/ Source |
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347-600 volt 3-phase 3Ø locking
receptacle/ non-grounding Three Hot legs are pulled from the breaker box to create 3Ø 600 volt potential. One Hot leg + Neutral wire creates single-phase 277 volt potential. Extreme danger from high voltage 347-600V. When device is not grounded, the enclosure and conduit are ground. The equipment must be grounded. Buy:
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 347-600V 3Ø non-groundingSource |
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Recirculation systems |
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