--- product_id: 22399107 title: "29139-180 15-Feet Locking Power Cord for Model L6-30P to Model SJTW 10/3, 30-Amp, 250-volt" brand: "conntek" price: "€ 105.66" currency: EUR in_stock: true reviews_count: 13 category: "Conntek" url: https://www.desertcart.hr/products/22399107-29139-180-15-feet-locking-power-cord-for-model-l6 store_origin: HR region: Croatia --- # 250V heavy-duty voltage 30A high-capacity power All-weather water-resistant 29139-180 15-Feet Locking Power Cord for Model L6-30P to Model SJTW 10/3, 30-Amp, 250-volt **Brand:** conntek **Price:** € 105.66 **Availability:** ✅ In Stock ## Summary > 🔒 Power up with confidence — lock in reliability every time! ## Quick Answers - **What is this?** 29139-180 15-Feet Locking Power Cord for Model L6-30P to Model SJTW 10/3, 30-Amp, 250-volt by conntek - **How much does it cost?** € 105.66 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/22399107-29139-180-15-feet-locking-power-cord-for-model-l6) ## Best For - conntek enthusiasts ## Why This Product - Trusted conntek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Generous Reach:** 15-foot length offers flexible placement without compromising power integrity. - • **Built to Endure:** 10/3 gauge SJTW pure copper cable resists overheating, delivering reliable long-term performance. - • **Lock & Load Power:** NEMA L6-30 locking plug ensures secure, no-slip connection for uninterrupted energy flow. - • **Certified Confidence:** UL & cUL listed for guaranteed safety and compliance in professional environments. - • **Weatherproof Warrior:** Water-resistant design keeps your power running safely through rain, snow, or shine. ## Overview The Conntek 29139-180 is a 15-foot, 30-amp, 250-volt locking power cord featuring a NEMA L6-30 male plug to bare wire connection. Constructed with durable 10/3 gauge SJTW pure copper cable, it offers superior heat resistance and all-weather water resistance. UL and cUL listed, this heavy-duty cord is designed for secure, long-lasting performance in demanding electrical applications. ## Description NEMA L6-30P 30A 250V Locking Plug to ROJ Power Cord, 30A 250V , UL & cUL Listed Review: Well Made For Up To 30 Amp Use - I do like for quality of this cord for use as 249 volt for use of medium EV charging speed on my dual voltage EV charger. I will pull around 15 to 16 amp on 20 amp plug. Remember; I will treat it for green as white as the neutral ground on one wire. The former solid white wire will become red as 'Y' live plus Black is 'X' live wire only for 240 volt. Review: Would recommend - Easy to install, durable, works well. ## Features - Power Supply Cord - NEMA L6-30 , 30 Amp Male Plug to Bare Wire - Bare wire/Hard wireQuality Cord – Reliable and Heavy-Duty Power Supply Cord - UL Listed - Built to Last – 10/3 gauge SJTW and pure copper to avoid the cable getting overheating from long time use. - All Weather – All weather and water-resistance, safer for emergency and extreme weather - Length - 15-Feet ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00F17QD6W | | Amperage | 30 A | | Best Sellers Rank | #216,560 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,497 in Extension Cords | | Brand | Conntek | | Color | Black | | Connector Gender | Male-to-Female | | Customer Reviews | 4.6 out of 5 stars 389 Reviews | | Ethernet Cable Category | Cat 3 | | Gauge | 10 | | Global Trade Identification Number | 00883943010202 | | Input Current | 30 A | | Item Length | 180 inches | | Manufacturer | Conntek | | Mfr Part Number | 29139-180 | | Model Number | 29139-180 | | Number Of Conductors | 3 | | Number of Outlets | 1 | | Plug Format | Type B | | Plug Type | Type B | | Power Cord Prong Count | 3 | | Special Features | Heavy Duty | | UPC | 883943010202 | | Voltage | 250 volts | | Warranty Description | 1 year limited | | Water Resistance Level | Water Resistant | | Wattage | 7500 watts | ## Product Details - **Brand:** Conntek - **Color:** Black - **Connector Gender:** Male-to-Female - **Plug Format:** Type B - **Voltage:** 250 Volts ## Images ![29139-180 15-Feet Locking Power Cord for Model L6-30P to Model SJTW 10/3, 30-Amp, 250-volt - Image 1](https://m.media-amazon.com/images/I/61TKwemysCL.jpg) ## Questions & Answers **Q: Will this work for a 230 volt 3.7 hp air compressor?** A: Yes. It will work for any single phase 240v with a steady state current draw of 30amps or less needing a 3 wire connection (black + red+ ground) **Q: Do you know if i can use it to backfeed house, gen l6-30p to 10/3 > ac 30amp dis-connect? thank you for your help.** A: I’m not sure I understand the question. If you use a 3 wire twist lock you will only have 120 volts, you need 4 wires for 240. Why do you want 30 amps for a 120 volt circuit? **Q: what type of prongs are on the unit. what type of receptacle is needed? e.g. nema 6-30r or ???** A: The prong on this unit is NEMA L6-30P, so the receptacle needed is NEMA L6-30R. **Q: Trying to power server from 240v 30a source. psu takes 110-240v. receptacle is nema l6-30 and need standard american 3 prong female. safe / unsafe?** A: Need more info to help you. Check if your source is 240/208 volts or 120? As #10 this pre-wired cord has only 3 wires, neutral, hot & ground it will carry up to 30 amps. The plug you add should also be 30 amp comparable but will only transmit either 240/208 or 120 not both. For both you’d need 4 wires & appropriate plugs. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Well Made For Up To 30 Amp Use *by S***N on December 29, 2025* I do like for quality of this cord for use as 249 volt for use of medium EV charging speed on my dual voltage EV charger. I will pull around 15 to 16 amp on 20 amp plug. Remember; I will treat it for green as white as the neutral ground on one wire. The former solid white wire will become red as 'Y' live plus Black is 'X' live wire only for 240 volt. ### ⭐⭐⭐⭐⭐ Would recommend *by J***D on March 23, 2025* Easy to install, durable, works well. ### ⭐⭐⭐⭐⭐ Quality *by G***K on October 6, 2024* Made well, better price than box stores --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/22399107-29139-180-15-feet-locking-power-cord-for-model-l6](https://www.desertcart.hr/products/22399107-29139-180-15-feet-locking-power-cord-for-model-l6) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-01*