---
product_id: 1630313
title: "IronBox Electric - NEMA L14-30P to L6-20R Plug Adapter Cord - Rated for 20A, 250V - 12/3 AWG Wire - Power Cable for Generators, RV, Electrical Equipment - Ideal for Indoor/Outdoor Use (1 Foot, Build)"
brand: "iron box"
price: "€ 139.98"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.sk/products/1630313-ironbox-electric-nema-l14-30p-to-l6-20r-plug-adapter
store_origin: SK
region: Slovakia
---

# 20A, 250V power rating Weather-resistant for indoor/outdoor 12/3 AWG heavy-duty wire IronBox Electric - NEMA L14-30P to L6-20R Plug Adapter Cord - Rated for 20A, 250V - 12/3 AWG Wire - Power Cable for Generators, RV, Electrical Equipment - Ideal for Indoor/Outdoor Use (1 Foot, Build)

**Brand:** iron box
**Price:** € 139.98
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up like a pro — never get caught powerless again!

## Quick Answers

- **What is this?** IronBox Electric - NEMA L14-30P to L6-20R Plug Adapter Cord - Rated for 20A, 250V - 12/3 AWG Wire - Power Cable for Generators, RV, Electrical Equipment - Ideal for Indoor/Outdoor Use (1 Foot, Build) by iron box
- **How much does it cost?** € 139.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/1630313-ironbox-electric-nema-l14-30p-to-l6-20r-plug-adapter)

## Best For

- iron box enthusiasts

## Why This Product

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

## Key Features

- • **All-Weather Ready:** Oil, water, and sunlight resistant cable designed for both indoor and outdoor power needs.
- • **Rugged 12/3 AWG Wire:** Engineered for maximum conductivity and durability in demanding environments.
- • **Seamless Power Adaptation:** Effortlessly convert NEMA L14-30P to L6-20R for versatile generator and equipment use.
- • **Industrial-Grade Durability:** Built with premium components to withstand heavy-duty, high-stress applications.
- • **Safe & Stable Power Delivery:** Rated for 20 amps and 250 volts to ensure reliable, secure connections every time.

## Overview

The IronBox Electric NEMA L14-30P to L6-20R Plug Adapter Cord is a 1-foot, industrial-grade power cable designed for seamless, safe power transfer. Rated for 20A and 250V, it features rugged 12/3 AWG wire with heavy-duty insulation, making it ideal for generators, RVs, and electrical equipment in both indoor and outdoor environments.

## Description

Full description not available

## Features

- NEMA L14-30P TO NEMA L6-20R CONFIGURATION: Easily adapt a 4-prong NEMA L14-30P plug to a 3-prong NEMA L6-20R connector for seamless power transfer between generators, tools, or transfer switches. This reliable setup is ideal for backup power, RV, and industrial applications.
- DURABLE 12/3 AWG WIRE FOR RELIABLE PERFORMANCE: Made with rugged 12/3 AWG wire, this adapter delivers strong conductivity, long-lasting durability, and maximum flexibility. With heavy-duty insulation, it's built to handle tough environments and deliver consistent power when it matters most.
- RATED FOR 20A, 250V FOR SAFE POWER DELIVERY: Engineered to safely handle up to 20 amps and 250 volts, this plug adapter ensures stable and secure power connections for generators, transfer switches, or heavy-duty equipment used in residential, commercial, or job site settings.
- HEAVY DUTY BUILD WITH INDUSTRIAL COMPONENTS: Constructed with a NEMA L14-30P plug and NEMA L6-20R connector, this industrial-grade adapter ensures premium durability and strength. It's the go-to choice for users needing a tough, dependable connection in demanding power situations.
- IDEAL FOR INDOOR AND OUTDOOR USE: Designed to withstand harsh elements, this adapter features oil, water, sunlight, and weather-resistant 12/3 AWG cable. Whether powering up indoors or in rugged outdoor environments, it delivers safe and dependable performance every time.

## Product Details

- **Brand:** Iron Box
- **Color:** Black
- **Voltage:** 250 Volts
- **Connector Type:** Plug in
- **Number Of Poles:** 4

## Images

![IronBox Electric - NEMA L14-30P to L6-20R Plug Adapter Cord - Rated for 20A, 250V - 12/3 AWG Wire - Power Cable for Generators, RV, Electrical Equipment - Ideal for Indoor/Outdoor Use (1 Foot, Build) - Image 1](https://m.media-amazon.com/images/I/717ShJTYFWL.jpg)
![IronBox Electric - NEMA L14-30P to L6-20R Plug Adapter Cord - Rated for 20A, 250V - 12/3 AWG Wire - Power Cable for Generators, RV, Electrical Equipment - Ideal for Indoor/Outdoor Use (1 Foot, Build) - Image 2](https://m.media-amazon.com/images/I/818w90pZSxL.jpg)
![IronBox Electric - NEMA L14-30P to L6-20R Plug Adapter Cord - Rated for 20A, 250V - 12/3 AWG Wire - Power Cable for Generators, RV, Electrical Equipment - Ideal for Indoor/Outdoor Use (1 Foot, Build) - Image 3](https://m.media-amazon.com/images/I/91tfX9gL+1L.jpg)
![IronBox Electric - NEMA L14-30P to L6-20R Plug Adapter Cord - Rated for 20A, 250V - 12/3 AWG Wire - Power Cable for Generators, RV, Electrical Equipment - Ideal for Indoor/Outdoor Use (1 Foot, Build) - Image 4](https://m.media-amazon.com/images/I/71UsyKVdWUL.jpg)
![IronBox Electric - NEMA L14-30P to L6-20R Plug Adapter Cord - Rated for 20A, 250V - 12/3 AWG Wire - Power Cable for Generators, RV, Electrical Equipment - Ideal for Indoor/Outdoor Use (1 Foot, Build) - Image 5](https://m.media-amazon.com/images/I/81m095EoHrL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Nice pre-made adapter cable
  

*by H***. on Reviewed in the United States on May 8, 2015*

Nice pre-made adapter cable. Obviously this is a very specific item so if this adapter has the right connectors for you then it should serve you well. The connectors are Powertronics Connections plugs and receptacles, which are also available on Amazon and are good inexpensive connectors.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Five Stars
  

*by J***. on Reviewed in the United States on March 30, 2018*

Quick ship worked

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Great adapter
  

*by F***H on Reviewed in the United States on June 11, 2019*

Great adapter for generator to L5 20 plugs

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**Shop now:** [https://www.desertcart.sk/products/1630313-ironbox-electric-nema-l14-30p-to-l6-20r-plug-adapter](https://www.desertcart.sk/products/1630313-ironbox-electric-nema-l14-30p-to-l6-20r-plug-adapter)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-02*