--- product_id: 185143787 title: "NEMA 6-20 Plug to 6-20 Connector Extension Power Cord - 25FT, 20A/250V, 12/3 SJTW, T Blade - Black" brand: "oviitech" price: "S$135" currency: SGD in_stock: true reviews_count: 8 category: "Oviitech" url: https://www.desertcart.sg/products/185143787-nema-6-20-plug-to-6-20-connector-extension-power store_origin: SG region: Singapore --- # 20A/250V heavy-duty power Anti-cold weather flexible rubber 12/3 gauge SJTW durable cable NEMA 6-20 Plug to 6-20 Connector Extension Power Cord - 25FT, 20A/250V, 12/3 SJTW, T Blade - Black **Brand:** oviitech **Price:** S$135 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your workspace with flexible, fail-proof extension! ## Quick Answers - **What is this?** NEMA 6-20 Plug to 6-20 Connector Extension Power Cord - 25FT, 20A/250V, 12/3 SJTW, T Blade - Black by oviitech - **How much does it cost?** S$135 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/185143787-nema-6-20-plug-to-6-20-connector-extension-power) ## Best For - oviitech enthusiasts ## Why This Product - Trusted oviitech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile 25-Foot Reach:** Extend your workspace or charging station with ample length for ultimate convenience. - • **Flexibility Meets Durability:** Anti-cold weather elastomer rubber jacket stays pliable in freezing temps without cracking. - • **Trusted by Pros & Innovators:** Highly rated with 4.8 stars and proven performance for Tesla charging, CNC routers, and more. - • **Power Through with Confidence:** Robust 20 Amp, 250 Volt rating powers your high-demand tools and EV chargers effortlessly. - • **Precision-Engineered Connectivity:** T blade NEMA 6-20 male-to-female connectors ensure secure, UL-listed safety compliance. ## Overview This 25-foot NEMA 6-20 extension cord delivers a heavy-duty 20A/250V capacity with a flexible, anti-cold SJTW 12/3 rubber cable. Featuring UL-listed T blade connectors, it’s engineered for demanding applications like EV charging, power tools, and HVAC equipment, combining durability with professional-grade safety and convenience. ## Description Buy NEMA 6-20 Plug to 6-20 Connector Extension Power Cord - 25FT, 20A/250V, 12/3 SJTW, T Blade - Black: Extension Cords - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Working well as extension cord for 240v table saw - So far so go good. The cord seems well put together, heavy duty, and likely matching the claimed specs. The only way to know for sure would be a destructive test (cutting it in half to check conductor size), which I’m not going to do. I am using it to get a little more length on the cord for my table saw while doing some work in the shop that necessitated moving the saw a bit far from its designated outlet. For this purpose it has worked just fine, so I feel like this was a good product choice. The cord itself is reasonably flexible given its thickness, and the outer jacket seems like it will be durable, though I haven’t used it for a long duration yet. Review: Very sturdy and nice cord! - I use it to charge my Tesla. Its a very solid and good construction cord. It does bend pretty easily too but all at the same time very thick and well-made. It works as intended and does not get hot. It can handle 6-20 load no problem for sustain periods. The black color does not rub off. Price was on the good side too! ## Features - 20Amp extension cord with NEMA 6-20R to NEMA 6-20P plug - SJTW 12AWG 20Amp cable 250 volts, T blade female connector - Power cord is Anti-Cold weather rubber which stays flexible in cold weather,The outer insulating cover is made of a higher quality elastomer rubber - Ideal for air conditioner, portable heater, treadmill, CNC router, Tesla, EV charger and more - UL Listed - This product is Listed to applicable UL Standards and requirements by UL,We guarantee good quality. If you have any questions, please contact us and we will contact you within 24 hours. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07TCNT8ZB | | Amperage | 20 A | | Best Sellers Rank | #131,446 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,041 in Extension Cords | | Brand | oviitech | | Case Material | rubber | | Case Material Type | rubber | | Color | Black | | Connector Gender | Male-to-Female | | Customer Reviews | 4.8 out of 5 stars 290 Reviews | | Gauge | 12 | | Input Current | 20 A | | Item Length | 300 inches | | Manufacturer | NINGBO LITESUN ELECTRIC CO., LTD | | Model Number | oviitech-unknown-model | | Number of Outlets | 1 | | Plug Format | Type B | | Plug Type | Type B | | Power Cord Prong Count | 3 | | UPC | 717877562905 | | Unit Count | 25 Feet | | Voltage | 250 volts | | Wattage | 5000 watts | ## Product Details - **Color:** Black - **Brand:** oviitech - **Connector Gender:** Male-to-Female - **Voltage:** 250 Volts - **Input Current:** 20 Amps ## Images ![NEMA 6-20 Plug to 6-20 Connector Extension Power Cord - 25FT, 20A/250V, 12/3 SJTW, T Blade - Black - Image 1](https://m.media-amazon.com/images/I/71cP1CLoftL.jpg) ![NEMA 6-20 Plug to 6-20 Connector Extension Power Cord - 25FT, 20A/250V, 12/3 SJTW, T Blade - Black - Image 2](https://m.media-amazon.com/images/I/81da8BQxSeL.jpg) ![NEMA 6-20 Plug to 6-20 Connector Extension Power Cord - 25FT, 20A/250V, 12/3 SJTW, T Blade - Black - Image 3](https://m.media-amazon.com/images/I/71kqf0sPBfL.jpg) ![NEMA 6-20 Plug to 6-20 Connector Extension Power Cord - 25FT, 20A/250V, 12/3 SJTW, T Blade - Black - Image 4](https://m.media-amazon.com/images/I/71Z42veCrrL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Working well as extension cord for 240v table saw *by P***B on January 26, 2025* So far so go good. The cord seems well put together, heavy duty, and likely matching the claimed specs. The only way to know for sure would be a destructive test (cutting it in half to check conductor size), which I’m not going to do. I am using it to get a little more length on the cord for my table saw while doing some work in the shop that necessitated moving the saw a bit far from its designated outlet. For this purpose it has worked just fine, so I feel like this was a good product choice. The cord itself is reasonably flexible given its thickness, and the outer jacket seems like it will be durable, though I haven’t used it for a long duration yet. ### ⭐⭐⭐⭐⭐ Very sturdy and nice cord! *by G***E on April 30, 2024* I use it to charge my Tesla. Its a very solid and good construction cord. It does bend pretty easily too but all at the same time very thick and well-made. It works as intended and does not get hot. It can handle 6-20 load no problem for sustain periods. The black color does not rub off. Price was on the good side too! ### ⭐⭐⭐⭐⭐ Works! *by B***K on September 29, 2025* Does it's job, been used outside to run an EV charger the last year, still going strong, cord still flexible. Good quality in my opinion! ## Frequently Bought Together - NEMA 6-20 Plug to 6-20 Connector Extension Power Cord - 25FT, 20A/250V, 12/3 SJTW, T Blade - Black - Leviton + 5821-W Single Receptacle Outlet + Commercial Specification Grade + Smooth Face + 20 Amp + 250 Volt, Side Wire + NEMA 6-20R + 2-Pole + 3-Wire + White - ENERLITES NEMA 6-20P Straight Blade Replacement Plug Connector, Male Extension Cord Ends, 20 Amp, 250 Volt, 2 Pole, 3 Wire Grounding, Industrial Grade, Heavy Duty, UL Listed, 66230-BK, Black --- ## 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.sg/products/185143787-nema-6-20-plug-to-6-20-connector-extension-power](https://www.desertcart.sg/products/185143787-nema-6-20-plug-to-6-20-connector-extension-power) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-12*