Charging Your Tesla Model 3 Sharing A Feeder [My Dryer]

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Dappa Yute

New Member
Joined
Apr 29, 2016
Messages
4
Location
Manassas, VA
#1
My incoming distribution panel is located in the basement and it is diagonally opposite to my garage. I have a finished basement with the joists parallel to the panel so I cannot fish anything without drilling and ripping out the basement. I don't plan on doing so.
Since I don't want to rip the drywall to run a dedicated feeder for charging, I decided to share the line with my dryer sitting on a 240VAC 60A breaker which has a 4 AWG wire.
I designed a dual contactor with interlocking mechanism to prevent them from being on at the same time and use a smart plug to schedule the power usage which I also can override with my phone and manually and the contactor. I thought I can share this with the Model 3 audience in case someone is facing a problem similar to mine. I'm not sure about the electrical code requirements or permit for a set up like this but I'm in the power industry and it should work with no issues. If anyone has questions, I'll be glad to help. Thanks for the video on installing your wall charger. I finally cleaned my garage and I was able to run a 50 ft 6-3 with ground AWG wire to my garage. after drilling. I'll be using the UMC instead of the wall connector.
I have attached the schematic and a picture of the contactor with interlock. I'll post pitures when I make the connection and the NEMA 14R receptacle.
 

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Last edited:

Uricasha

Well-known member
Joined
Feb 19, 2017
Messages
222
Location
Phoenix, AZ
Country
Country
Tesla Owner
No
#2
NIce.

Is the interlocking mechanism mechanical or electrical?

The only code requirement that could possible be violated with this is 210.52, which is commonly interpreted as "Laundry equipment shall have its own circuit" but I'm no expert :)
 

Dappa Yute

New Member
Joined
Apr 29, 2016
Messages
4
Location
Manassas, VA
#4
I can totally understand each equipment having its dedicated feeder. If I do sell the house and move out, I will disconnect my contraption and reconnect it. My basement is pretty decked out to rip it apart again.