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The Best Nema L14 20 of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Nema L14 20 of 2023. Check our ranking below.

2,519 Reviews Scanned

SaleRank No. #1
ENERLITES NEMA L14-20P Locking Plug Connector for Generator, Twist Lock Male Plug, 20 Amp, 125/250 Volt, 3 Pole, 4 Wire Grounding, Industrial Grade Heavy Duty, UL Listed, 66421-BK, Black
  • Industrial grade locking plug, NEMA L14-20P
  • 20 Amp, 125/250 Volts, 60Hz, 3-Pole, 4-Wire, Grounding
  • NEMA plug is made of polycarbonate thermoplastic material to provide durability, and resilience to withstand hard impacts and heavy force
  • Easy to use and do-it-yourself installation
  • One-year warranty; UL listed, NEMA configuration and device rating clearly marked
Rank No. #2
Parkworld Generator 4-Prong 20 AMP NEMA L14-20 Extension Cord (25FT)
  • UL & cUL Listed, Heavy-duty for generator, 100% copper conductor inside.
  • Molded with electroplate copper terminal in order to avoid surface oxidation effectively.
  • STW 12/4C stranded wire extension cord with outside PVC Jacket, support max 20 AMP loading.
  • Universal to All Other Brands Generator 4-ping Generator, Max Rate 2500 Watt (125V) / 5000 Watt (250V)
  • Generator 4-prongs Twist Lock L14-20 Locking Connector, 125 Voltage / 250 Voltage
SaleRank No. #3
Leviton 2411 20 Amp, 125/250 Volt, NEMA L14-20P, 3P, 4W, Locking Plug, Industrial Grade, Grounding - Black-White
  • Super Tough Nylon Body Resists Damage From Severe Impact, Abrasion and Chemicals
  • NEMA and Non-NEMA Configurations Available
  • Solid Brass Blades And Contacts Feature Improved Conductivity, Low Resistance, Low Heat, and Long Life
  • Internal Wiring Chambers Isolate Individual Conductors to Prevent Flashover, Arcing, and Stray Strands of Wire
  • Deep slotted triple drive face module and cord clamp screws
Rank No. #4
Generator to Welding Adapter Cord NEMA L14-20P Plug 4-Prong 20A Locking Male to Welding NEMA 6-50R
  • This NEMA L14-20 outlet is most often found installed in generators. L14-20 outlets are rated to supply up to 20 Amps at 125 or 250 Volts.NEMA 6-50 receptacle Welder 3-prong 50 AMP female.
  • 10AWG/3C stranded copper inner wire, 100% copper conductor inside.
  • Molded with electroplated copper terminal in order to avoid surface oxidation effectively.
  • Application: This flexible adapter is great for powering a welder from a L14-20 generator outlet.
  • Within 24 hours friendly response and 30 days money back for quality issue.
Rank No. #5
ELEGRP NEMA L14-20R Flush Mounting Locking Receptacle, Twist Lock Socket/Outlet for Generator, 20 Amp 125/250V 3 Pole 4 Wire Grounding, Industrial Grade Heavy Duty, UL Listed (1 Pack, Black)
  • ✅【Toughened Nylon Construction + Copper Brass Contacts】 Heavy-Duty nylon body and cover for outstanding resistance to impact and harsh chemicals. One-piece, high-grade brass contacts offer excellent conductivity and heat-rise resistance.
  • ✅【Tight Lock】 Secure locking design that receptacle is locking tightly on electrical equipment to keep it from vibrating loose and falling out.
  • ✅【Safety Enough】 Single-piece, the nickel-plated mounting strap is double riveted to the body for added strength. Heavy interior walls provide additional support to ensure contact retention. UL V-2 Flammability Rating.
  • ✅【Easy Install】 Combination back and side wiring terminal design allows for fast installation. Serrated terminal plates bite wire to ensure strong, reliable wiring connections. Space-saving design allows more room in the box for wiring. #10 terminal screws for faster, more secure installation.
  • ✅【 Application】 NEMA L14-20R Flush Mounting Locking Receptacle in Heavy Duty Industrial Grade for Generators, Transfer Switches, Welding Equipment, Marine or RV Camper Power, etc.
SaleRank No. #6
Parkworld 691920A Generator to Welding Adapter cord NEMA L14-20 Plug 4-Prong 20A Locking Male to Welding NEMA 6-50 Receptacle 50A Female
  • Generator Adapter L14-20P to 6-50R 125V/250 Volt.
  • Molded with electroplated copper terminal in order to avoid surface oxidation effectively.
  • NEMA L14-20 plug Generator 4-prong 20 AMP twist lock male. NEMA 6-50 receptacle Welder 3-prong 50 AMP molding right angle female.
  • Used 10AWG/3C stranded copper inner wire, support max 30 Amp loading.
  • 100% copper conductor inside, Heavy-duty power adapter cord for generator.
Rank No. #7
Journeyman-Pro 20 Amp, Plug & Connector Set, NEMA L14-20R & L14-20P, 125/250V, Locking Plug Socket, Black Industrial Grade, Grounding 5000 Watts Generators (L14-20PR PLUG SET)
  • INDUSTRIAL GRADE: NEMA L14-20R & L14-20P, 3 Pole, 4 Wire, Locking Plug Connector SET Black/Yellow
  • CLEAR SEE-THRU Wiring Block & Color Coded Positive Crimp Lock Wire Clamps Provides Visual Inspection
  • 20 Amp - 5000 Watts 125/250 Volts AC - Grounding Type
  • HEAVY DUTY Use for Generators, Transfer Switches, Welding Equipment, RV, Trailer & Camper
  • cUL Listed 91GG Plug, LIFETIME WARRANTY
SaleRank No. #8
Journeyman-Pro 2415, NEMA L14-20 Flanged Inlet Generator Plug, 20A 125/250 Volt, Locking Receptacle Socket, Black Industrial Grade, Grounding 5000 Watts (With Waterproof Cover)
  • SUPER TOUGH Black Nylon Body Resists Damage From Severe Impact, Abrasion and Chemicals
  • CLEAR SEE-THRU Wiring Block & Color Coded Positive Crimp Lock Wire Clamps Provides Visual Inspection
  • 20 Amp - 5000 Watts 125/250 Volts AC - 2HP Rating, 3-Pole 4-Wire Grounding Type
  • HEAVY DUTY Use for Generators, Transfer Switches, Welding Equipment, RV Camper Power Inlet
  • cUL Listed Approved Plug 91GG, Accommodates 8-14 AWG Gauge Wiring
Rank No. #9
1FT Nema L14-30P 30Amp Locking Plug Male to 6-20R T-Blade adapter, STW 10-AWG 30A 4-Prong 250V to 3 20A 250V 6-20/15R Adapter, L14-30 to 6-20 Adapter
  • Nema L14-30P 4-Prong locking in male plug rated 30-AMP 250V. support 5000Watt
  • Nema 6-20R female rated 20A 250V, it works only in 250V situation, the 6-20R female is also compatible with Nema 6-15R (15-AMP 250V).
  • Nema L14-30P 4-Prong Male connect to your generator, the 6-20R (T-Blade) female connect to your EV charger Which has a 6-20P male power cable
  • Cable is solid outdoor STW 10AWG 3 Conductors. 100% copper wires support max 30AMP/250V
  • The adapter length is 1 foot, Approximately 32CM which fits your charging power cord properly, cord in durable molded jacket, plug and the blade in brass. All the power cables we are selling passed 100% related safety and durable testing
Rank No. #10
Hilitand NEMA Male Twist Lock Electrical Plug, L14-20P 125V/250V 20A US Twist Lock Electrical 4 Pin Plug Receptacle Connector
  • HIGH QUALITY - Constructed from solid brass blades and high quality ABS that is built to stand up to the toughest conditions
  • SAFE TO USE - This NEMA 14-50P 50A 125V Straight Blade US Four Holes Plug have features required by Electricians for performance and Safety
  • WIDELY APPLICABLE - The straight blade angle plug is widely suitable for dryer, RV, generator, etc.
  • WITH LONG SERVING LIFE - Twist lock male plug with CUL certification,great for connecting to a generator with a 250V volt outlet.the number of pluggable is more than 20000 times.
  • GENERATOR TWIST LOCK ADAPTER MALE PLUG FEATURES - US Four Pin Plug, 14-50P, 125V-250V 50A, 50-60HZ
Rank No. #11
AC WORKS Locking Adapter NEMA L14-20P 20Amp 4-Prong Generator Locking Plug to NEMA 6-20R 250V Adapter (Compact)
  • NEMA L14-20P to NEMA 6-15/20R
  • NEMA L14-20P, 20 Amp, 125/250 Volt, 4-prong locking male plug
  • NEMA 6-15/20R, 15/20 Amp, 250 Volt, 3-prong female connector
  • Nickel-plated to prevent rusting
  • 5-year limited warranty
Rank No. #12
AC WORKS L14-20P 20Amp 4-Prong Generator Locking Plug to (4) NEMA 5-15/20R Household Connector (Orange-1.5FT)
  • NEMA L14-20P, 20 Amp, 125/250 Volt, 4-Prong Locking Male Plug
  • Four NEMA 5-15/20, 20 Amp, T-blade Household Connectors
  • Power Distribution Cord with 30Amp Copper Wire and 600 Volt Anti-Cold Weather Jacket
  • 20 Amp 4-Prong Generator to Four-Household Outlets
  • 5-Year Limited Warranty
SaleRank No. #13
Parkworld 60417A EV Adapter Cord 4-Prong Generator 20A Locking L14-20P Male to RV 50 AMP 14-50R Female with Handle and Lighted (Both for EV and RV)
  • RV Adapter L14-20P to 14-50R 125V/250V, Used 10AWG*4 stranded copper inner wire, support max 30 Amp loading.
  • Generator Locking 4-prong 20 AMP L14-20 locking male plug with lighted.
  • RV 4-prong 50 AMP right angle female with handle, with Lighted, easy to pull and push, easy to find work or not.
  • 100% copper conductor inside, Heavy-duty AC power adapter cord for generator to RV & EV.
  • Length : 18 inch. Color : Black with lighted in female end.
Rank No. #15
Fullsky FC-L4265 generator welder Generator 4 prong to 3 prong adapter Generator to Welding Adapter cord NEMA L14-20 Plug 4-Prong 20A Locking Male to Welding NEMA 6-50 Receptacle 50A Female
  • Male NEMA L14-20P 125/250V 20A(W Pole without connect can not transform to 125V)
  • Femal NEMA 6-50R 250V 50A.
  • Maximum Load 250V 20A 5000W.
  • Cord STW 10/3C Orange 18inch.
  • Conductor material 100% copper.
Rank No. #16
NEMA L14-20P 20 Amp 125/250 Volt Twist Lock Female Wall Outlet Receptacle US 3 Pole 4 Wire Industrial Grade Grounding Flush Mounting (Not Include Screws) US Four-Hole Power Female Plug
  • L14-20R is a NEMA configuration code that sets standards for the electrical industry insuring interchangeability with other devices of the same designation
  • Features 3 Pole 4 Wire Grounding, NEMA L14-20R, 125-250V 20A, locking receptacle
  • Chemical- and impact-resistant housing, quick installation
  • With long serving life, the number of pluggable is more than 20000 times
  • Great for connecting to a generator with a 125V/250V volt outlet
Rank No. #17
Journeyman-Pro 2411 20 Amp, 125/250 Volt, NEMA L14-20P, 3P, 4W, Locking Male Plug Connector, Black Industrial Grade, Grounding 5000 Watts Generator Rating (L14-20P Male Plug)
  • INDUSTRIAL GRADE: NEMA L14-20P, 3 Pole, 4 Wire, Locking Plug Connector Black/Yellow
  • CLEAR SEE-THRU Wiring Block & Color Coded Positive Crimp Lock Wire Clamps Provides Visual Inspection
  • 20 Amp - 5000 Watts 125/250 Volts AC - Grounding Type Twist Lock
  • HEAVY DUTY Use for Generators, Transfer Switches, Welding Equipment, RV, Trailer & Camper
  • cUL Listed 91GG Plug, LIFETIME WARRANTY
SaleRank No. #18
Rank No. #19
Cable Matters LED-Lit 4 Prong 30 Amp to 15 Amp Adapter for Generator (30 AMP to 110 Adapter Splitter) 30 Inches - NEMA L14-30P to 2X 5-20R
  • 15 amp to 30 amp adapter converts a 30A 120/240V locking receptacle on a generator to 2x 5-20R grounded outlets that accept standard NEMA 5-15P or 5-20P grounded cords; Safely power 20 amp equipment such as a refrigerator or a Microwave with this 30 amp generator cord; 30amp to 110V adapter is backwards compatible with 15 amp or less equipment
  • Outdoor rated 30 amp RV adapter with a STOW cable jacket is weather and oil resistant; Flexible 30 amp to 110 adapter with dual 1 foot segments distributes temporary power at a job site or at home
  • Heavy duty 10 gauge 4 conductor 30 Amp RV generator adapter easily supports the maximum current up to 30 amps for connected equipment; LEDs in each outlet verify that the power is flowing; A lifetime warranty and product support provides peace of mind when purchasing this 240V splitter that steps down to 120V
  • Locked & lighted 2 outlet 4 prong Generator adapter has a locking 4 prong L14 30P generator plug and two standard grounded outlets with an LED in each; L14 30 adapter is an essential accessory for RV power at the campsite, contractor power at the job site, or residential generator power at home
  • Portable generator 4 prong adapter is compatible with popular models such as the Champion 7500 watt dual fuel portable generator, DuroMax XP4850ES portable generator, DuroMax Hybrid Dual Fuel XP12000EH, DuroMax XP10000E portable generator, DuroMax XP4850EH portable generator, All Power America 10000 Watt Dual Fuel Generator, Honda EM6500S generator and Westinghouse WGen7500DF generator
Rank No. #20
Journeyman-Pro 2413 20 Amp, 125/250 Volt, NEMA L14-20R, 3P, 4W, Locking Female Plug Connector, Black Industrial Grade, Grounding 5000 Watts Generator Rating (L14-20R Female Plug)
  • INDUSTRIAL GRADE: NEMA L14-20R, 3 Pole, 4 Wire, Locking Plug Connector Black/Yellow
  • CLEAR SEE-THRU Wiring Block & Color Coded Positive Crimp Lock Wire Clamps Provides Visual Inspection
  • 20 Amp - 5000 Watts 125/250 Volts AC - Grounding Type Twist Lock
  • HEAVY DUTY Use for Generators, Transfer Switches, Welding Equipment, RV, Trailer & Camper
  • cUL Listed 91GG Plug, LIFETIME WARRANTY

Last update on 2023-08-06 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: Where can I find a NEMA l14-20 plug?

A: You’ll find a NEMA L14-20 receptacle on some generators that supply 4 kW or less of electric power. It’s a locking receptacle with a notched ground hole, and it accepts only the NEMA L14-20 plug. These are almost identical to the NEMA L14-30 plug/receptacle pair except that the direction of the notch in the ground hole is reversed.

Q: What’s the difference between the L14 and L14-30 plugs?

A: You probably won’t need it, though, because both plugs follow standard 240-volt wiring. The only difference between them is that 10-gauge wire is required for the L14-30, whereas 12-gauge wire is acceptable when wiring the L14-20P plug or L14-20R receptacle.

Q: Where do the wires go on a NEMA plug?

A: They are red, black, white and green or bare. The black and red wires are hot and they go on the two brass terminals in the front of the housing. Loosen the terminal screws, wrap the wires clockwise around them and then tighten down the screws.

Q: What kind of plug do I need for NEMA generator?

A: In that case, you would install a NEMA L14-20 plug on the power cord. Note that the power cord must contain 12-gauge or larger wires. If the gauge is too small, then the wires can overheat when drawing the rated current from the generator, and a fire could result.

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