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Description
Marinco 3021P Male 120-208V/30A Twist-Lock 5-Wire Inline Connector30A 3 Phase 120 208V Standard NEMA Locking Plug Specifications Item Plug, locking Rating 30 amperes, 120 208 volts, 3 phase Configuration NEMA L21 30P Materials Housing and plug body are nylon with CTI greater than 600 volts Terminals Line terminals are clamp type, with color coded, 10 32, brass terminal screws. Grounding terminal is set screw type Blades Line and neutral blades are solid brass 0. 070" thick. Grounding blade is a solid brass pin 0.
30A 3 Phase 120/208V Standard NEMA Locking Plug
Specifications
| Item | Plug, locking |
| Rating | 30 amperes, 120/208 volts, 3-phase |
| Configuration | NEMA L21-30P |
| Materials | Housing and plug body are nylon with CTI greater than 600 volts |
| Terminals | Line terminals are clamp-type, with color-coded, 10-32, brass terminal screws. Grounding terminal is set-screw type |
| Blades | Line and neutral blades are solid brass 0.070" thick. Grounding blade is a solid brass pin 0.187" nominal diameter |
| Cord Clamp | Internal, with removable insert to accommodate cable from .700" (12/5 S) through 1.150" (8/5 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" |
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Exchange/Return Notes
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4.5 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Perfect Every Day shoe for School!
Size: 12 Little Kid, Color: Black/Multi, Size: 12 Little Kid, Color: Black/Multi
My 5 year old daughter (6 next month!) picked these out for back to school. She started Kindergarten and she really liked these. They’re super adorable! Love the black since they’ll match pretty much any outfit. The rainbow is super vibrant and the fabric of the shoe is very soft. She says they’re very comfortable as well. She’s growing into a 12, so that’s what we went with and it’s perfect bc she had a little bit of room at the toe. They’re easy for her to put on and they’re very lightweight. The perfect every day shoe. She’s been wearing them to school for about a week and so far they still look brand new (that’s the pic I took from today.) Definitely recommend!
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Reviewed in the United States on August 9, 2025
★★★★★ 5
Great shoe for Littles
Size: 13 Little Kid, Color: Black/Multi
These were super comfortable for my 7 year old. They've held up and endured the play grounds and school days. Washed up easily, the color made that possible. These were super lightweight and didn't rub her heel when she walked.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
awesome cute shoes
Size: 13.5 Little Kid, Color: Black/Multi
My 7 year old loves them and says they are very comfortable. lightweight. and slip on is perfect not loose or too tight.
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Reviewed in the United States on November 10, 2025
★★★★★ 5
No cramps!
Size: 5 Big Kid, Color: Black/Multi
Perfect fit! Vibrant colors! Not to heavy! Easy to put on and take off!
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Reviewed in the United States on December 25, 2025
★★★★★ 5
Kid likes them, all that matters
Size: 1 Little Kid, Color: Black/Multi
Kiddo is happy. She says they're comfortable and fit well. Also loves the color. I like how they're versatile and will go with the majority of her clothing. Sketchers always makes good shoes.
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Reviewed in the United States on February 5, 2026