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Description
Marinco 3014P Male 125-250V/30A Twist-Lock 4-Wire Inline Connector30A 125 250V Standard NEMA Locking Plug Specifications Item Plug, locking. Rating 30 amperes, 125 250 volts Configuration NEMA L14 30P Materials Housing and plug body are nylon with CTI greater than 600 volts Terminals Terminals are clamp type, with color coded brass terminal screws, 10 32 Blades All blades are solid brass 0. 070" thick. Cord Clamp Internal, with removable insert to accommodate cable from . 465" (12 4 SJ) through 1. 050" (8 4 S).
30A 125/250V Standard NEMA Locking Plug
Specifications
| Item | Plug, locking. |
| Rating | 30 amperes, 125/250 volts |
| Configuration | NEMA L14-30P |
| Materials | Housing and plug body are nylon with CTI greater than 600 volts |
| Terminals | Terminals are clamp-type, with color-coded brass terminal screws, 10-32 |
| Blades | All blades are solid brass 0.070" thick. |
| Cord Clamp | Internal, with removable insert to accommodate cable from .465" (12/4 SJ) through 1.050" (8/4 S). |
| Overall Design | Two assembly screws, U-drive style. All screws are combination slot/cross head. Dust seal at cord entry. Beveled housing. |
| Certifications | UL listed, File E57672 CSA certified, File LR81290 |
| Dimensions | 3.04" x 2.11" x 2.11" |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.1 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Quiet your vehicle noises
Size: 50 sqft
Put this in our high roof van and couldn’t believe how much quieter it was at once. Really cut down on the vibration noise Nice and easy to install just peel n stick. Was also easy to cut with scissors for smaller areas. Seemed to be really nice quality. Didn’t notice any odor.
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Reviewed in the United States on June 9, 2026
★★★★★ 5
Sound deadening the Hot Rod
Size: 20 sqft, Size: 20 sqft
Works well, good value for the money.
It’s very sticky and conforms to what you are applying it to. One 20 sq ft box did approximately the passenger side
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Good stuff
Size: 50 sqft, Size: 50 sqft
Good stuff. I did a lot of work on my 91 Toyota Land Cruiser 3FE. I did the inside and outside doors, as well as the under-hood area, with some extra work. I like this stuff. It sticks down good but you have to clean your surface so there's a good grip. I think these are going to do well for noise cancellation. The deadening material does well with absorbing vibrations too. But the install roller tools it will come in handy. Trust me trying to do it by hand is not worth it.
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Reviewed in the United States on June 6, 2026
★★★★★ 4
Good quality
Size: 10 sqft
I wish it was a little better but it definitely works great and look good for how cheap it is
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Reviewed in the United States on January 23, 2026
★★★★★ 5
Works well
Size: 10 sqft
Worked great at a budget price.
I used it to damp a fiberglass loudspeaker horn. Easy to work with too.
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Reviewed in the United States on May 8, 2026