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50amp Power Tunnel™ 240 volt through wall extension

  • 19999


Due to the high cost of Romex cable we are now offering the BSA Electronics Power Tunnel™ with and without Romex

With the BSA Electronics 50amp Power Tunnel™ you can permanently install a code compliant Romex extension in your wall to pass 240v 50amp power from one room where your Outlet is located, to your garage where your Electric Vehicle is located. This is the bigger brother to the original BSA Electronics Power Tunnel™ 30amp kit

Designed to extend your NEMA 14-50 (4-prong 240v 50amp, Electric Range Outlet) or NEMA 10-30 (3-prong 240v 50amp, older Electric Range Outlet), also available in NEMA 6-50 (3-prong 240v 50amp, Large Welder Outlet)

You may opt for No Romex from the drop down menus if you plan to run THHN (single conductor wire) in a conduit between the two power boxes.

This is a kit that requires home electrical installations skills or installation by a qualified Handyman/Electrician. It includes the following;

PT50 #21 kit:

  • 1pc. 14-50 3.5' cord (4-prong 240v 50amp) with Metal power box and metal cable gland (to be mounted near existing Electric Range Outlet)
  • 1pc. 14-50 outlet with Metal power box and outdoor cover plate (to be mounted near your Electric Vehicle)
  • 2pc. cable clamps
  • 4pc. box mounting tabs
  • 4pc. 6 gauge wire nuts
  • 1pc. 2-foot length of 4 conductor, 6 gauge 50amp cable
  • 1pc. Quick sheet

PT50 #22 kit:

  • 1pc. 10-50 3.5' cord (3-prong 240v 50amp) with Metal power box and metal cable gland (to be mounted near existing Electric Range Outlet)
  • 1pc. 14-50 (4-prong 240v 50amp) outlet with Metal power box and outdoor cover plate (to be mounted near your Electric Vehicle)
  • 2pc. cable clamps
  • 4pc. box mounting tabs
  • 4pc. 6 gauge wire nuts
  • 1pc. 2-foot length of 4 conductor, 6 gauge 50amp cable
  • 1pc. Quick sheet

PT50 #23 kit:

  • 1pc. 6-50 3.5' cord (3-prong 240v 50amp) with Metal power box and metal cable gland (to be mounted near existing Electric Range Outlet)
  • 1pc. 6-50 cord (3-prong 240v 50amp) outlet with Metal power box and outdoor cover plate (to be mounted near your Electric Vehicle)
  • 2pc. cable clamps
  • 4pc. box mounting tabs
  • 4pc. 6 gauge wire nuts
  • 1pc. 2-foot length of 4 conductor, 6 gauge 50amp cable
  • 1pc. Quick sheet

PT50 #24 kit:

  • 1pc. 14-50 3.5' cord (4-prong 240v 50amp) with Metal power box and metal cable gland (to be mounted near existing Electric Range Outlet)
  • 1pc. 6-50 cord (3-prong 240v 50amp) outlet with Metal power box and outdoor cover plate (to be mounted near your Electric Vehicle)
  • 2pc. cable clamps
  • 4pc. box mounting tabs
  • 4pc. 6 gauge wire nuts
  • 1pc. 2-foot length of 4 conductor, 6 gauge 50amp cable
  • 1pc. Quick sheet

PT50 #26 kit:

  • 1pc. 10-50 3.5' cord (3-prong 240v 50amp) with Metal power box and metal cable gland (to be mounted near existing Electric Range Outlet)
  • 1pc. 10-50 outlet with Metal power box and outdoor cover plate (to be mounted near your Electric Vehicle)
  • 2pc. cable clamps
  • 4pc. box mounting tabs
  • 4pc. 6 gauge wire nuts
  • 1pc. 2-foot length of 4 conductor, 6 gauge 50amp cable
  • 1pc. Quick sheet

 

The power input cord may be made shorter upon request. I offer many additional plugs and outlets, please place request in the order notes or email us.

We offer longer Romex lengths up to 12 feet, email us and we can quote you a price before you place an order or we can add it to your order. Due to the weight of 4 conductor 6 gauge 50amp cable, if you need a significantly  longer length it is recommended to purchase it from your local home improvement store.


Quick Sheet Manual:
50amp Power Tunnel™ 240 volt through wall extension Quick Sheet 


If you need the 30amp version of the Power Tunnel, you can find it here:
https://www.bsaelectronics.com/products/power-tunnel-240-volt-through-wall-extension

Need some help identifying your wall outlet? We can help! Below is a description of the more common NEMA outlets and their numbers as well as some handy NEMA plug charts. You can also email us a pic of your plugs and outlets you need help identifying and we would be happy to help.

Here are the more common NEMA outlets:

  • 5-15 standard 15A 120 volt household outlet, the most common you see everywhere.
  • 5-20 standard 20A 120 volt household outlet, required by code in bathroom and behind your refrigerator.
  • 6-15 standard 15A 240 volt household outlet, found in homes and motels for running in-wall Air Conditioners, it’s the smaller brother to the NEMA 6-20 outlet. The 5-20 is not as common as a 6-20 outlet with it’s “T” shaped slot as it will accept both 6-20 and 6-15 plugs.
  • 6-20 standard 20A 240 volt household outlet, found in homes and motels for running in-wall Air Conditioners, also found occasionally in residential garages.
  • 6-50 standard 50A 240 volt 3-prong outlet, found in shops and garages used for large welders.
  • 10-30 standard 30A 240 volt 3-prong Dryer outlet found in homes build before 1996
  • 14-30 standard 30A 240 volt 4-prong Dryer outlet found in homes build in 1996 and newer
  • 14-50 standard 50A 240 volt 4-prong Range (electric stove top) outlet, also called RV-50 at the RV parks. By far the best universal connector to have for an EVSE. This is the one the Tesla guys install in their garages.
  • TT-30 (Travel Trailer 30amp) 30A 120 volt 3-prong outlet, the older style found in RV parks, not used in residential homes.
  • L6-30 (locking 240 volt 30amp) Twist-Lock 30A 240 volt outlet, my personal favorite locking connector, easy to find in stores, works great for adding adapters to portables EVSE’s equipped with a L6-30 plug.


220/240 volt outlets are commonly install with the ground pin towards the ceiling for safety. 110/120 volt outlets can be found mounted in all directions. Be sure to carefully look at your outlet and the chart, it's easy to mistake one outlet for another if your outlet has it's ground pin facing the floor instead of the ceiling or Vice Versa compared to the chart.

In the full NEMA number you will see a capital R or P. The R stands for Receptacle (outlet) and the P stands for Plug, we commonly truncate this to just the numbers and add the word receptacle (or outlet) at the end. For example 14-50R becomes 14-50 receptacle or 14-50 outlet.

Need some extra length between your Dryer outlet and Dryer Buddy™ or between the Dryer Buddy™ and your Electric Vehicle Charging Station (EVSE)? I custom build extension cords to the length your need and with the plug and outlet of your choice, see my extensions in the Adapter’s section for several models; Extension Cords


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