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The Best L14 30 Wiring of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best L14 30 Wiring of 2023. Check our ranking below.

2,507 Reviews Scanned

Rank No. #1

Locking Devices, Twist-Lock, Watertight Safety Shroud, Receptace, 30A 125/250V, 3-Pole 4-Wire Grounding, L14-30R, Screw Terminal, Gray

High impact, thermoplastic housing for heavy-duty industrial environments
Stainless Steel 302/304, #10 multiple drive head mounting screws provide corrosion resistance
Mounting screw recesses minimize screwdriver slippage
Lockout/tag out hole on inlets allow compliance to OSHA regulation 29 CFR 1910.147
Neoprene closure cap provided with inlets for environmental seal when not in use

Rank No. #2

HUBBELL WIRING DEVICES HBL2711 TWIST LOCK PLUG, 30A, 3P4W, L14-30

Price For: Each

Rank No. #3

Journeyman-Pro 2713 30 Amp, 125/250 Volt, NEMA L14-30R, 3P, 4W, Locking Plug Connector, Black Industrial Grade, Grounding 7500 Watts Generator Rating (L14-30R (Female Plug))

INDUSTRIAL GRADE: NEMA L14-30R, 3 Pole, 4 Wire, Locking Connector Black/Yellow
CLEAR SEE-THRU Wiring Block & Color Coded Positive Crimp Lock Wire Clamps Provides Visual Inspection
30 Amp - 7500 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

Rank No. #4

Journeyman-Pro 2711 30 Amp, 125/250 Volt, NEMA L14-30P, 3P, 4W, Locking Plug Connector, Black Industrial Grade, Grounding 7500 Watts Generator Rating (L14-30P (Male Plug))

INDUSTRIAL GRADE: NEMA L14-30P, 3 Pole, 4 Wire, Locking Plug Connector Black/Yellow
CLEAR SEE-THRU Wiring Block & Color Coded Positive Crimp Lock Wire Clamps Provides Visual Inspection
30 Amp - 7500 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. #5

AC WORKS Locking Style Replacement Wiring Male Plug (L14-30 30A 125/250V)

NEMA L14-30, 30 Amp, 125/250 Volt, Locking Male Plug
Fast and Easy Install
UL and C-UL Listed
Locking Plug Prevents Items from Unplugging
1-year Limited Warranty is Included with this Product

Rank No. #6

Pass & Seymour L1430-P 4 Wire 3 Pole Polarized Extra Hard Use Locking Plug 125/250 Volt 3-Phase 30 Amp NEMA L14-30P Black/White Turnlok

Quick-Thread Assembly Screws and Cord-Grip Screws Come Backed-Out, Ready-to-Wire
Industrial-Strength Brass Alloy Plug Blades and Connector Contacts Resist Heat Rise, Provide Excellent Conductivity
Raised Ribs Provide Non-Slip Gripping Profile for Turnin

Rank No. #7

Watertight Devices, Twist-Lock Receptacle with Lift Cover, 30A, 3 Phase 125/250V AC, 3 Pole, 4 Wire, Thermoplastic elastomer, NEMA L14-30R, Yellow

The product type is Watertight Devices, Twist-Lock Receptacle with Lift Cover, 30A, 3 Phase 125/250V AC, 3 Pole, 4 Wire, Thermoplastic elastomer, NEMA L14-30R, Yellow
It is manufactured in United States
It is manufactured by WIRING DEVICE-KELLEMS

Rank No. #8

Cllena NEMA L14-30 Flanged Generator Power Inlet/Outlet Receptacle Socket with Cover 30 Amp 125/250V 7500W (Black)

Super Tough Black Nylon Body Resists Damage From UV Degradation, Severe Impact, Abrasion, Chemicals; water and dust resistance by a rubber cover.
Clear See-Thru Wiring Block & Color Coded Positive Crimp Lock Wire Clamps Make Wiring Easy.
15 Amp 125 Volts AC 2-Pole 3-Wire Flanged Inlet Rated Up To 1875 Watts
cUL Listed Approved Plug 91GG, Accommodates 10-14 AWG Gauge Wiring
Works perfectly for use with generator transfer switches or power inlet plug to supply power to your home, business, boat, Rv or trailer

Rank No. #9

Miady 30 Amp Generator Power Inlet Box, NEMA 3R Power Inlet Box, L14-30P, 125/250 Volt, for Generators Up to 7500 Watts, Weatherproof, ETL Listed

【L14-30 GENERATOR INLET BOX】: ETL listed, 30 Amp, 125/250 Volt, 7500 Watts generator power inlet box. NEMA L14-30P PLUG, compatible with all 30 Amp NEMA L14-30 generator cord. Max Wire Gauge: 10 AWG. The best choice for generator power cord to house.
【POWER ON INDICATION】: When the generator cord is plugged in and powered on, a green light on the flip-top will illuminate. A clear indication will be evident when working, thus providing optimal performance and increased safety.
【BEST SPACE DESIGN】: Has a generous wiring space for easy threading. The front of the box is removable for easy placement and wiring. Using 1.2" knockouts (side, bottom and back), the power inlet box is designed to connect directly to a transfer switch or panel.
【WEATHERPROOF & RUST RESISTANCE】: The inlet box is made of steel with durable, corrosion-resistant powder coating and has a spring-loaded inlet cover to protect against dust, moist air and water.
【WHAT YOU GET】: Heavy Duty 30 Amp generator power inlet box, our worry-free 18-month warranty, and friendly customer service.

Rank No. #10

Powertronics Connections NEMA L14-30 100' cord 100-Feet 30-Amp L14-30 Generator Power Cord for Up to 7,500-watt Generators

100 foot long 30 Amp Generator power cord for up to 7500 Watts
10 Gauge Rubber SOOW 10/4 Cord with L14-30 Socket on one end, L14-30 Plug on the other
Excellent flexibility even in cold weather (rated to -40 deg C (and -40 F)
10 Gage, 4 conductor stranded copper cord for full loads

SaleRank No. #11

GeepKey 30 Amp Power Inlet Box, NEMA 3R Power Inlet Box, NEMA L14-30P PB30 Power Inlet Box, 125/250 Volt, 7500 Watts Generator Transfer Switch, Weatherproof for Outdoor Use, ETL Listed

ETL Certification: 125/250V, 7500W, 30Amp generator inlet box with NEAM L14-30 inlet generator plug, suitable for all 30 amp NEMA L14-30 generator cord. This pb30 power inlet box is a good partner for the generator to accommodate the power cord. It is designed to be installed in outdoor areas where generators are used outdoors, and also be ideal for backup power during power outages/bad weather, etc.
Best Choice for Outdoor: the whole body of GeepKey generator power inlet box is covered with anti-rust coating, with powerful features such as wind, rain and rust! In addition, it adopts a flip design (with weatherproofing foam inside), which is dedicated to preventing dust and humid air; it can provide the best protection in any bad weather!
Green Safety Light: There is a clear green warning light on the flip cover, which will be lit when the power connection is successful; Comparing with the old version, this generator inlet 30 amp plug can see a clearly visible green light indicator when working (especially in Night and dark areas), thus providing the best performance and higher security
Large Space with 4 Way Connection: The large space of 6.1*4.1*3.1 inches allows you to wire more neatly; the heat dissipation effect is better, and it has a longer service life. The front panel can be removed, making installation more portable. And the 1.2-inch combination hole with 4 areas (left, right, bottom, rear) can be directly connected to the switch and electrical panel from multiple directions
100% satisfactory service: This product is an upgraded model developed by us in accordance with market needs. Its performance, material, life, safety and other aspects are optimized、upgrade by our professional engineers, and we provide customers with 18 Month’s high-quality after-sales service; if you have any questions, please feel free to contact us

Rank No. #12

L14-30 Generator Plug and Connector Set, L14-30P + L14-30R, 30A, 125/250V, 4-Prong for 7500W Generators - Iron Box # IBX-L1430PR

L14-30P Male Plug + L14-30R Female Connector
Rated for 30 Amps and 125/250V
Wire AWG Range at 8/4, 10/4, 12/4
UL Listed, CSA Approved
4-Prong plug and connector set

SaleRank No. #13

ExiBryony 10FT NEMA L14-30 to Four 5-20R Generator Locking Cord,10 Gauge Distribution Cord,Generator Adapter with Power Indicator, Household Cable with UL Listed,125/250V,7500W,4Prong

ADAPTER CORD: NEMA L14-30P to (4) 5-15/20R adapter ,30Amp 125/250Volt 4-Prong Locking Male Plug are used fo most household tools and electrical appliances, very suitable for distributes temporary power at job site or campsite.
HIGHT QUALITY MATERIAL: STW 10/4 30Amp Copper wire With 600Volt Anti-Cold weather Jacket,features excellent abrasion, oil and moisture resistance and flexibility. It should last for a long time even with rugged use.
Product Specification: Support max 30 Amp overload, 125/250V, max wattage 7500 watts, 10 feet,4-Prong 10 Gauge Distribution Cord with L14-30/ 4X 5-20R female receptacle.
SAFETY ASSURANCE: Adapter are UL compliant，The clear end receptacles with dust protection caps, provide optimum performance and added safety.
Why to Select Us: ExiBryony specializes in the production of various adapter power cords. 100% of the products have been rigorously tested to ensure that each product received by our user can work perfectly.

Rank No. #14

ELEGRP NEMA L14-30P Locking Plug, Generator Twist Lock Adapter Male Plug, 30 Amp 125/250V 3 Pole 4 Wire Grounding, Industrial Grade Heavy Duty, UL Listed (1 Pack, Black/White)

✅【Toughened Nylon Construction + Copper Brass Blades】 Insulated and solid nylon housing will keep non-current carrying parts from becoming energized and won’t crack in high abuse applications. Formed from a single piece of solid brass to reduce friction and overheating, providing excellent conductivity.
✅【Tight Lock】 Secure locking design that plug is locking tightly on electrical equipment to keep it from vibrating loose and falling out. Internal cord clamp assures secure wire connection.
✅【Safe Enough】 Each wire slide into a separate tube and to be tightened to prevent shorting or stray strands. Flexible rubber dust seal prevents moisture and contaminants from entering the wiring chamber.
✅【Good to Use and Install】 Ergonomic fluted body design with radial grip ridge is ideal for gripping, turning and pulling. Face and body feature alignment make it easy to assemble. Grip screws are installed from the same side to make tightening easy. Pocketed recess for cord grip screws deters the slippage of the screwdriver.
✅【Wide Application】 Typically used for generators, temporary power solution, transfer switches, welding equipment, RV, trailer & camper trailer & camper welding equipment, etc.

Rank No. #15

30 Amp Generator Inlet Box [Pre-Drilled] with Green Safely Light, PB30 Power Inlet Box, 7500 Watts Generator Transfer Switch Accessories for Emergency in Snowstorm Weather, ETL Listed

Pre-drilling Design: GeepKey generator inlet box is designed for easy removal and replacement of wiring caps, without the need for special tools like a drill or knockout punch, or the assistance of an electrician. This saves you both time and money.
ETL Certification: 125/250V, 7500W, 30Amp generator inlet box with NEAM L14-30 inlet generator plug, suitable for all 30 amp NEMA L14-30 generator cord. This pb30 power inlet box is a good partner for the generator to accommodate the power cord. It is designed to be installed in outdoor areas where generators are used outdoors, and also be ideal for backup power during power outages/bad weather, etc.
Best Choice for Outdoor: the whole body of GeepKey generator power inlet box is covered with anti-rust coating, with powerful features such as wind, rain and rust! In addition, it adopts a flip design (with weatherproofing foam inside), which is dedicated to preventing dust and humid air; it can provide the best protection in any bad weather!
Green Safety Light: There is a clear green warning light on the flip cover, which will be lit when the power connection is successful; Comparing with the old version, this generator inlet 30 amp plug can see a clearly visible green light indicator when working (especially in Night and dark areas), thus providing the best performance and higher security
Large Space with 4 Way Connection: The large space of 6.1*4.1*3.1 inches allows you to wire more neatly; the heat dissipation effect is better, and it has a longer service life. The front panel can be removed, making installation more portable. And the 1.2-inch combination hole with 4 areas (left, right, bottom, rear) can be directly connected to the switch and electrical panel from multiple directions.

Rank No. #16

5-15 Male Plug to Locking L14-30 Female Receptacle Adapter Cord, 12 inch

Rank No. #17

ENERLITES NEMA L14-30P Locking Plug Connector for Generator, Twist Lock Male Plug, 30 Amp, 125/250 Volt ,3 Pole, 4 Wire Grounding, Industrial Grade Heavy Duty, UL Listed, 66470-BK, Black

Industrial Grade Locking Plug, NEMA L14-30P
30 Amp, 125/250 Volt, 60Hz, 3-Pole, 4-Wire Grounding
Made of Polycarbonate Thermoplastic (PCT) material to provide the durability and resilience to withstand hard impacts and heavy force
Easy to use for do-it-yourself installation; twists to lock with connector 66492-BK, NEMA L14-30C
One-year warranty; UL Listed

Rank No. #18

4 Prong 30 Amp 125/250V Generator Power Inlet Box - PB30, NEMA L14-30P Power Inlet Box - 7500 Watts Generator Inlet Plug for Outdoor Receptacle - Weatherproof Generator Outlet, ETL Listed

4-Prong 30 Amp Generator Power Inlet Box - This generator power inlet box is constructed to provide consistent dependable power from the generator through an electrical power panel. A 30 amperage electrical box with an outdoor rated 4 pronged NEMA L14-30P generator inlet is perfect for backup power generators amidst a power outage at your home or for use with an RV, travel trailer, camper, electric car or motorhome.
125/250 Volts Inlet Outdoor Receptacle - This generator power inlet box has enough room for wirings and is well-protected. Simply unscrew the front part of the box with the flip cover to open. This outdoor inlet box is designed to be mounted outdoors in a well-ventilated area to prevent dangerous vapor from coming out of the running generator. A universal fit makes it suitable for use with any electric vehicle with 30amp, 125V/7500W power rating.
Weatherproof Power Outdoor Inlet Box - Made of sturdy and high quality iron. The power-coated enclosure is reliably durable which prevents rust, chemical abrasions and can resist corrosion. This power inlet box withstands exposure to weather without any damage and has resistance to electric shock for safety when in use.
Handy Green Indicator Light - This complete power outlet box comes with an illuminated clamshell cover visible at night and with a green light indicator that lights up when the power is properly and successfully connected. It is manufactured by AA Ignition and comes with electrical wiring spots. The knockout punch holes on the back, bottom and sides need to be worked out manually by piercing 1.2 inches into the metal with proper tools, preferably a knockout punch set or drill to connect conduit. It also has screw holes at the back side ready for mounting.
Lifetime Warranty - This 30amp power outlet panel comes complete with a lifetime warranty. If the part ever fails, simply contact us for a replacement. Save time and avoid going to truck stops, parking lots or camping grounds to supply or recharge power to your RV. Also useful if you're struggling with a power outage at your home, this 30amp power inlet box for your generator is from AA Ignition.

Rank No. #19

Journeyman-Pro 30 Amp, Plug & Connector Set, NEMA L14-30R & L14-30P, 125/250V, Locking Plug Socket, Black Industrial Grade, Grounding 7500 Watts Generators (L14-30PR PLUG SET)

INDUSTRIAL GRADE: NEMA L14-30R & L14-30P, 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
30 Amp - 7500 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

Rank No. #20

Flameweld Welder Adapter Cord, L14-30P Locking Male Plug to 6-50R Female Plug, 4 Prong 30 Amp to 50 Amp Up to 7500W SJTW 10/3 Generator Cord, UL

【Specifications】 30 Amp L14-30P 125V male plug to 50 Amp 6-50R female.
【Durable PVC Material Case】 The power line is made of high-quality PVC, which has excellent abrasive resistance, moisture resistance and suppleness, and can avoid power outages due to various bad weather conditions.
【High Class Copper Wire】 Pure copper cable has low heating temperature, not easy to crack, low energy consumption, resistance to oxidation and corrosion characteristic. It makes work safer and helps improve power generation efficiency and protect the environment.
【Suitable for Outdoor Use】 This 30/50 amp RV adapter cord allows you to connect 50 amp RV electric plug into 30 amp power pedestal at the campground. Very suitable for campers, trailers, RVs, caravan parks, campgrounds, recreational areas, etc.
【High Quality Warranty】 Rv adaptor cord promises 1 year guarantee period. If you have any questions about adapter for rv plug, please consult us.

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

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FAQ:

Q: What do you see in a NEMA L14-30 wiring diagram?

A: There are two things which are going to be found in any Nema L14-30 Wiring Diagram. The first component is symbol that indicate electrical component from the circuit. A circuit is generally composed by various components. Another thing that you will see a circuit diagram could be lines.

Q: How big of a twist lock plug do I need for NEMA L14-30?

A: The Procedure for Wiring a NEMA L14-30 Plug. The cable to which you attach a 30-amp twist lock plug has to be a minimum of 10 AWG, which is one size larger than standard 120-volt residential cable.

Q: What’s the maximum voltage for a NEMA 30 amp outlet?

A: Wiring of L14-30 Connector 120/240V NEMA Connector L14-30 120/240V This twist-lock 30-amp part is probably the most common type of single-phase three-pole outlets found in most portable generators over 4,000 watt. Theoretically, its maximum rating is 250Vx30A= 7,500 VA.

Q: How big of a cable do I need for a 30 amp lock plug?

A: The cable to which you attach a 30-amp twist lock plug has to be a minimum of 10 AWG, which is one size larger than standard 120-volt residential cable. You need three conductors plus a ground. Two of the conductors, which are red and black, are hot wires, and one – the white one – is neutral.