SKU: 27957359888

30 Amp 125/250V NEMA L14-30P Locking Plug Industrial Grade Grounding Connector 3 Pole 4 Wire Generator Interface

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Description

30 Amp 125/250V NEMA L14-30P Locking Plug Industrial Grade Grounding Connector 3 Pole 4 Wire Generator InterfaceSecure High Voltage Connections for Generators and Industry Upgrade or replace your power connections with the 30 Amp 125 250V NEMA L14 30P Locking Plug. This industrial grade connector is the gold standard for connecting heavy duty equipment, including backup generators, large power tools, and transfer switches. Built with an abuse resistant thermoplastic housing, it is engineered to withstand the impacts, drops, and rough handling typical of job

Secure High-Voltage Connections for Generators and Industry

Upgrade or replace your power connections with the 30 Amp 125/250V NEMA L14-30P Locking Plug. This industrial-grade connector is the gold standard for connecting heavy-duty equipment, including backup generators, large power tools, and transfer switches. Built with an abuse-resistant thermoplastic housing, it is engineered to withstand the impacts, drops, and rough handling typical of job sites and workshops. The "twist-lock" design ensures a safe, vibration-proof connection that won't accidentally pull out during operation, providing peace of mind when powering critical systems.

Installation is designed to be fast, secure, and error-free. The plug features back wire terminal clamps that bundle copper strands securely without damaging them, ensuring superior conductivity and reduced heat buildup. A unique clear terminal cover allows for immediate visual inspection of your wiring terminations, eliminating guesswork. With a rugged external cord clamp for exceptional strain relief and triple-combination head screws (Slot/Phillips/Robertson), this plug accommodates a wide range of wire gauges and is ready for use across the US and Canada.

Key Features

  • Industrial Durability: Constructed from impact and abuse-resistant thermoplastic for long service life.
  • Secure Locking: NEMA L14-30P twist-lock configuration prevents accidental disconnection under load.
  • Visual Inspection: Features a clear wire cover housing to easily verify secure wire terminations.
  • Superior Strain Relief: External cable clamp firmly secures the cord, protecting internal connections from stress.
  • Easy Wiring: Back wire terminal clamps and tapered channels make inserting wires simple and secure.
  • Universal Hardware: Triple combination screws (Slot/Phillips/Robertson) allow installation with standard tools.
  • High Capacity: Rated for 30 Amps and 125/250 Volts, ideal for generators up to 7,500 running watts.
  • Clear Markings: Amperage, voltage, and NEMA rating are molded into the face for easy identification.

What's Included

  • (1) NEMA L14-30P Locking Plug (Black/White)

Specifications

NEMA Configuration L14-30P
Amperage 30 Amps
Voltage 125/250 VAC
Poles / Wires 3-Pole / 4-Wire
Grounding Grounded
Body Material Nylon / Thermoplastic
Cord Diameter Range 0.25" to 1.16"
Recommended Wire Gauge 10 AWG
Dimensions (L x W) 2.75" x 2.0"
Color Black / White
Phase Single Phase

Pro-Tip: The NEMA L14-30P is the most common plug used for home backup generators (up to 7500 watts) to connect to a manual transfer switch. To maintain the full 30 Amp rating and ensure safety, always use 10 AWG wire (specifically 10/4 SOOW or SJTW cord) when building your extension or interface cables.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 27957359888

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4.1 ★★★★★
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Samantha
Fort Morgan, US
★★★★★ 5
Actually Cooling Pillow
Size: Queen (1 Count), Color: Original White (Cooling)
This is a really nice pillow, I was worried it would be too soft or too firm but it's just right and it's actually cooling, it feels cool every time I touch it. I've noticed an improvement in sleep since using it. Would recommend!
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Reviewed in the United States on May 27, 2026
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Verified Purchase
Tyler and Kaela
Birmingham, US
★★★★★ 5
Repurchased in King Size – Still Love These Cooling Pillows
Size: King (2 Count), Color: Original White (Cooling), Size: King (2 Count), Color: Original White (Cooling)
After using the queen-size version of these pillows for over a year, we purchased the king-size set when we upgraded to a king mattress. Both my husband and I really like them. The cooling feature works well, and we like that each side feels different—when I run cold, I use the softer bamboo side, while my husband prefers the cooler side since he tends to sleep hot. They fit well in our king-size pillowcases and feel supportive in all sleeping positions, whether I’m on my stomach, side, or back. I also appreciate that you can remove some of the filling to adjust the firmness. The covers are washable, which makes them easy to maintain. Overall, we’re very happy with this repurchase and the long-lasting comfort.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
M
Verified Purchase
Mystery Fan
Lexington, US
★★★★★ 3
Not great at cooling
Size: Queen (2 Count), Color: Original White (Cooling)
Each pillow cover has 2 sides, one marked for cooling, and the other a different fabric. The cooling side is about the same effectiveness as having a silk or satin pillow cover. It's only cool when you first touch it. The cooling side doesn't seem to absorb or wick moisture, so if you are sweaty - it keeps the moisture in place. You'll definitely want a regular pillow case over the pillow cover. In fact, if you suffer from night sweats, the non-cooling side is actually more comfortable. The pillow fill is ample, and simple to squish around for more support for your neck, etc. Think bean bag. But it will retain your impression after use. I find I need to do as I did when I had down pillows - give it a few good shakes in the morning when I make the bed to get it evened out for the coming night. In all, it is a well-made and comfortable pillow to sleep on, but it does not excel in cooling.
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Reviewed in the United States on May 29, 2026
C
Verified Purchase
Carol C
Grantham, US
★★★★★ 5
excellent pillows i bought two sets!!
Size: Firm Queen (2 Count), Color: Original White (Cooling)
I ordered these for my son who has neck issues and has gone through so many pillows trying to find one that he liked. They’re heavy, so i was worried that they might be “too” heavy to be able to sleep on comfortably, so I ordered a second set, one firmer than the other (just in case) and gave him a set for Xmas and he loved the first set so much without even trying the less firm ones.He also needs the cooling factor and these offered that, too. They are filled with pieces of memory foam (tons of it) and each pillow can be modified by removing some of the foam. The covers are beautiful, high quality fabric with a zipper so ts easy to remove or replace the foam pieces. The size is perfect and they keep their shape. I kept the second set i ordered rather than returning them and i love the pillows. I actually modified two by removing some of the foam pieces. I kept the foam pieces in a zippered pillow protector and i can always adjust mine when or if i need to. 1000% love these.
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Reviewed in the United States on March 22, 2026
A
Verified Purchase
Asha
Natrona Heights, US
★★★★★ 5
The Perfect Firm Pillow l
Size: Queen (1 Count), Color: Original White (Cooling)
It is everything it claims to be, cool, comfortable and strong. I got this for my husband first, he loves it and then got one for my son, he uses it to support his knees and has been sleeping much better since then. They both needed a firm pillow that is not super soft, firm but not achy. Finally found the perfect one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026

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