---
product_id: 188972100
title: "ONETAK NEMA 10-30P to 14-50R 120V/240V 30 Amp External Ground Welder Welding RV Dryer EV Charger Power Cord Adapter Adaptor Connector Connecter"
brand: "onetak"
price: "$108"
currency: NZD
in_stock: true
reviews_count: 5
url: https://www.desertcart.nz/products/188972100-onetak-nema-10-30p-to-14-50r-120v-240v-30
store_origin: NZ
region: New Zealand
---

# 30A Power 4M Length 2 Conductors ONETAK NEMA 10-30P to 14-50R 120V/240V 30 Amp External Ground Welder Welding RV Dryer EV Charger Power Cord Adapter Adaptor Connector Connecter

**Brand:** onetak
**Price:** $108
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with Confidence!

## Quick Answers

- **What is this?** ONETAK NEMA 10-30P to 14-50R 120V/240V 30 Amp External Ground Welder Welding RV Dryer EV Charger Power Cord Adapter Adaptor Connector Connecter by onetak
- **How much does it cost?** $108 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/188972100-onetak-nema-10-30p-to-14-50r-120v-240v-30)

## Best For

- onetak enthusiasts

## Why This Product

- Trusted onetak brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Built with an external ground for added safety during high-demand tasks.
- • **Extended Reach:** With a generous 4-meter length, you can work comfortably without restrictions.
- • **Professional Grade:** Engineered for durability and reliability, perfect for both home and industrial use.
- • **Power Up Your Projects:** Seamlessly connect your welder, RV, or EV charger with this robust 30 Amp adapter.
- • **Versatile Compatibility:** Designed to fit 10-30P and 14-50R plugs, ensuring you’re always connected.

## Overview

The ONETAK NEMA 10-30P to 14-50R Adapter is a high-performance power cord designed for 120V/240V applications, featuring a 30 Amp capacity and a 4-meter length for versatile use with welders, RVs, and EV chargers. Its robust construction ensures safety and reliability, making it an essential tool for professionals and DIY enthusiasts alike.

## Description

NEMA 10-30P to 14-50R 120V/240V 30 Amp External Ground Power Cord Adapter

## Features

- 4 Meters External Ground, Ground pin fits 5-15R Ground
- 120V/240V 30Amp

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Length | 157.48 Inches |
| Color | 10-30P/14-50R External Ground |
| UL Listed | No |
| Number Of Conductors | 2 |
| Number of Outlets | 1 |
| Input Current | 30 Amps |
| Plug Type | Type B |
| Voltage | 120 Volts |

## Images

![ONETAK NEMA 10-30P to 14-50R 120V/240V 30 Amp External Ground Welder Welding RV Dryer EV Charger Power Cord Adapter Adaptor Connector Connecter - Image 1](https://m.media-amazon.com/images/I/71YWGCRMwcL.jpg)
![ONETAK NEMA 10-30P to 14-50R 120V/240V 30 Amp External Ground Welder Welding RV Dryer EV Charger Power Cord Adapter Adaptor Connector Connecter - Image 2](https://m.media-amazon.com/images/I/91q7LDelG0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Good
  

*by A***W on Reviewed in the United States on September 2, 2024*

Easy to use. Works well

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great solution
  

*by C***Y on Reviewed in the United States on August 29, 2023*

we got a Model 3 and they sent us the current NEMA 14-50 standard.  our home was built in the 80s and has a old 240V dryer outlet 10-30R in the garage (which isn’t grounded).  planning to update the switch (new switch and also routing bigger gauge wires to a new outlet) Be sure to change the amperage input to 24A instead of. full 30A in the Tesla to avoid overheating and tripping the switch.  Still much faster and better than the 120V.  Tesla mobile charger won’t operate unless you plug the green ground wire to a nearby outlet.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    A simple solution
  

*by A***H on Reviewed in the United States on July 7, 2020*

I recently bought my first electric vehicle. Not a Tesla and not new but still..........The seller included a high speed JuiceBox charger and I didn't even bother to look at its plug and then look at the drier plug in my garage. I just assumed that they were made for each other.Well they weren't and so I entered a period of deep dive research.It boiled down to:a) Have an electrician install a brand new 240V wall socket in the garage for exclusive use by the charger.b) Have an electrician upgrade the existing drier wall socket which will then mate perfectly  with the JuiceBox charger but no longer with the old drier. Then buy a cable adapter to help mate the drier to the new socket.c) Leave the old drier socket alone and just buy this cable adapter and timeshare car charging and clothes drying.I went with option (c) and within minutes after the adapter arrived I was "high speed" charging my new-to-me EV.I like the fact that no electrician was called.The coil of green ground wire that comes with this adapter gets plugged into the round hole of any nearby 110V ordinary outlet. It eliminates any risk of shock which keeps me in compliance with the codes.

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**Shop now:** [https://www.desertcart.nz/products/188972100-onetak-nema-10-30p-to-14-50r-120v-240v-30](https://www.desertcart.nz/products/188972100-onetak-nema-10-30p-to-14-50r-120v-240v-30)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-19*