---
product_id: 39436359
title: "Journeyman-Pro 5278 15 Amp 125 Volt, Flanged Inlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade, Nema 5-15 (with Cover/Cap)"
brand: "journeyman-pro"
price: "฿2126"
currency: THB
in_stock: true
reviews_count: 12
url: https://www.desertcart.co.th/products/39436359-journeyman-pro-5278-15-amp-125-volt-flanged-inlet-black
store_origin: TH
region: Thailand
---

# 15 Amp Power NEMA 5-15 Standard DIY Friendly Journeyman-Pro 5278 15 Amp 125 Volt, Flanged Inlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade, Nema 5-15 (with Cover/Cap)

**Brand:** journeyman-pro
**Price:** ฿2126
**Availability:** ✅ In Stock

## Summary

> 🔧 Power Up Your Projects with Confidence!

## Quick Answers

- **What is this?** Journeyman-Pro 5278 15 Amp 125 Volt, Flanged Inlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade, Nema 5-15 (with Cover/Cap) by journeyman-pro
- **How much does it cost?** ฿2126 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/39436359-journeyman-pro-5278-15-amp-125-volt-flanged-inlet-black)

## Best For

- journeyman-pro enthusiasts

## Why This Product

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

## Key Features

- • **Fast Installation:** DIY ready with a clear see-thru wiring block and included screw options.
- • **Lifetime Warranty:** cUL Listed with a no-B.S. lifetime warranty for peace of mind.
- • **Unmatched Durability:** Super tough black nylon body resists UV degradation and severe impact.
- • **Weather-Proof Design:** Includes a weather-proof front cover for reliable outdoor use.
- • **High Wattage Capacity:** Supports up to 1875 watts with versatile wiring gauge options.

## Overview

The Journeyman-Pro 5278 is a robust 15 Amp, 125 Volt flanged inlet designed for commercial use. Its durable black nylon body withstands harsh conditions, while the DIY-friendly installation features make it a go-to choice for professionals. With a high wattage rating and a lifetime warranty, this product is built to last and perform.

## Description

Journeyman-Pro 5278 15 Amp 125 Volt, Flanged Inlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade, Nema 5-15 (with Cover/Cap)

## Features

- 15 Amp 125 Volts AC 2-Pole 3-Wire Flanged Inlet Male Plug w/Weather Proof Front Cover Only
- Super Tough Black Nylon Body Resists Damage From UV Degradation, Severe Impact, Abrasion, Chemicals
- DIY Ready – 1-3/4” Hole Size, Clear See-Thru wiring block & included screw options makes install fast!
- 1875 Watt Rating - Wiring Gauge 12-18 AWG, Cord Grip for use with No. 12-3 through No. 18-3 cords
- The Pro's Choice!, cUL Listed, with Lifetime No-B.S. Warranty!

## Images

![Journeyman-Pro 5278 15 Amp 125 Volt, Flanged Inlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade, Nema 5-15 (with Cover/Cap) - Image 1](https://m.media-amazon.com/images/I/517S19GPOhL.jpg)
![Journeyman-Pro 5278 15 Amp 125 Volt, Flanged Inlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade, Nema 5-15 (with Cover/Cap) - Image 2](https://m.media-amazon.com/images/I/51LiJ2nKmZL.jpg)
![Journeyman-Pro 5278 15 Amp 125 Volt, Flanged Inlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade, Nema 5-15 (with Cover/Cap) - Image 3](https://m.media-amazon.com/images/I/514gh94h-UL.jpg)
![Journeyman-Pro 5278 15 Amp 125 Volt, Flanged Inlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade, Nema 5-15 (with Cover/Cap) - Image 4](https://m.media-amazon.com/images/I/51b-aljlRLL.jpg)
![Journeyman-Pro 5278 15 Amp 125 Volt, Flanged Inlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade, Nema 5-15 (with Cover/Cap) - Image 5](https://m.media-amazon.com/images/I/71RJXMm33LL.jpg)

## Available Options

This product comes in different **Pattern Name** options.

## Questions & Answers

**Q: Any reason I can't use this in reverse, as receptacle wired to my boat's elec system, using a short female to femail ext cord? Want to**
A: i would never encourage you to use a plug as a receptacle and what we call in show business a “suicide adapter”. Search for the “receptacle” version of this wiring device, not the “plug” version. 

If you used this in the manner you suggest, you would be creating “hot pins” which even though you feel sure you would never remove the receptacle-to-receptacle adapter you’d make, someday for some unforeseen reason it would be out of there and the parallel blades would be carrying voltage for anyone and anything to have a very surprising and dangerous interaction with.

“Plugs” aka “males” have “Pins”, and they never are part of an electrical system in a way that they can “be hot” and therefore easily touched to created shocks or sparks or worse. “Receptacles” aka “females” do not expose metal voltage carrying surfaces - they are encased behind plastic that’s certified not to melt up to certain voltages flowing nearby, and are safe to be the part that’s “hot”, and awaiting insertion of a “plug” to electrify a device. 

Don’t use electricity wrong. ever. it’s not your friend. it doesn’t even like you even though it doesn’t know you. It will happily injure people and melt objects and burn down structures. 👍

**Q: What size whole do i need?**
A: 1.75" (1-3/4 Inch) Hole is needed. :)

**Q: Will this work for a block heater?**
A: It may.  I think it would depend on the amperage of your heater.  There are 20 amp plugs available as well.

**Q: Will this work on Freighter M-2 truck**
A: What is a Freighter M-2 truck.  It works as a panel mount 15A 125V plug.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Good quality- easy to use
  

*by S***P on Reviewed in the United States on September 25, 2023*

If installing in an exterior box, I used a TAYMAC external box cover with pre-cut knockouts.  This creates two issues.  1) kind of a pain to cut out and 2) alignment with screws to secure to plate come close to the next “knock out”.A “blank cover, drilled out to size would be my preference.  Also using the hosing cover in addition to the included  cover may not be suitableI’m mounting this to a shed to have temp power feed as needed.Will update laterBut overall - great quality for the price and would secure well to RVs and other uses.  And would recommend silicon to ensure no water or moisture over time

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    good device after you replace the nuts and bolts
  

*by R***B on Reviewed in the United States on April 30, 2019*

This is a hard to find device but with it I was able to bring power to an auxiliary out-building where code didn't allow hardwiring. After the second time that the plug pulled out of the receptacle I replaced all of the #4 bolts with longer #6's. It is much sturdier and now functions just fine. I paired it with a Taymac MX3200 One Gang Vertical cover. I initially installed it May 2017 and except for the bolts it has held up well with intermittent use and I'm a half mile from the ocean on Oahu's windward coast where nothing weathers well.I'm including eight images with my review that show the wiring installations steps: back & front views of receptacle w/out plug; 1 views of weatherproof receptacle with plug wired, 2 side views showing the attachment of the plug with #6 bolts, washers & lock-nuts; front view of installed plug in box and views of medium & heavy duty extension cords with weatherproof cover opened and closed. I had to drill out the bolt holes keeping them tight enough to self thread a bit. I should have wrapped the bolt ends but by that time my patience was thin; fiddling and fumbling with #4 and 6 bolts and nuts is testy at 68 yr hands.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    It does what I expect it to do.
  

*by J***S on Reviewed in the United States on October 5, 2022*

I kindof wish it had a large nut on the back of the unit instead of using screws on the front.  Good product anyway.

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**Shop now:** [https://www.desertcart.co.th/products/39436359-journeyman-pro-5278-15-amp-125-volt-flanged-inlet-black](https://www.desertcart.co.th/products/39436359-journeyman-pro-5278-15-amp-125-volt-flanged-inlet-black)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-03*