What charging receptable to install?

[mkhuffman]

I have some conduit running right where the screws should attach to the wall from the Ford EVSE mobile charger.

Does anyone have a suggestion on how to maybe setup a mount over the conduit to secure the EVSE bracket? Something like some V shaped bridge/mount over the conduit or something? (does that type of bracket exist)


Also, that cable that comes with the Ford mobile charger is impossible to bend/twist, it's so stiff. Don't really want/plan to buy a real EVSE since 32 Amps is plenty for us.

How bad is it really to just leave it hanging? Maybe I can just put like a hook shelf or something and just support the base slightly.

I think a shelf will work fine. You just want to take the stress off the wire.

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[mach-e-waiting]

Here is a thought
Take 2 pieces of wood that thickness = diameter of conduit
Place a piece of wood on either side of the conduit, run screws thru into the wall
Now the bracket can sit on the wood and thus "bridge over" the conduit. Screw Bracket to the wood

Bonus Points: Paint the wood to match the wall

 

[ChuckA]

I see a lot of advice about different configurations but you should follow Ford’s installation advice:

240v outlet, 50A GFCI
industrial grade NEMA 14-50 plug
wall flush outlet box- ground pin up
Between 35” - 60” ground to outlet

 

[Fixbear]

I'm having him install it right next to the box which is in my garage. This is a short term house for us as we are shopping for a new one so I figured I can live with just basic outlet for now. Is this the right thinking?

Understand, that a 50 amp breaker with continuous load will only support 42 amps charge rate. I recommend that you install 6 wire and at least a 60 amp breaker. A 50 amp breaker will only support that load for a intermittent time. And it will drop capacity over time if run full load often. Code say's that for continuous load the circuit has to be rated 60%. As we see the technology progress, we are going to see faster chargers. So don't be afraid to oversize the circuit.

 

[mkhuffman]

Code say's that for continuous load the circuit has to be rated 60%.

I don't think this is correct. The load should not exceed 80% of the lowest current rating on the circuit. If any component (outlet, breaker, wire) has a current rating of 50 Amps, the steady state current cannot exceed 42 Amps.

I have never seen any NEC requirement refer to 60%. Where does that come from?

 

[Motomax]

Your electrician should install a NEMA 14-50 outlet on a 50 Amp breaker. If you want to be awesome, have him install a 60 Amp subpanel with a 50 Amp breaker for the outlet, which provides the future ability to add a direct wire 48 Amp charger. I did that and really like the faster 48 Amp charging speed.

Your best solution really depends on how close your outlet will be to the your breaker box.

Why the sub-panel? Just run wires large enough for a 60 amp breaker. if you do upgrade, you swap the 50a breaker out and remove the outlet.

 

[TD1273]

I don't think this is correct. The load should not exceed 80% of the lowest current rating on the circuit. If any component (outlet, breaker, wire) has a current rating of 50 Amps, the steady state current cannot exceed 42 Amps.

I have never seen any NEC requirement refer to 60%. Where does that come from?

It is 80% and both 50 or 60 amp breaker require #6 wire size depending on length of run

 

[mkhuffman]

Why the sub-panel? Just run wires large enough for a 60 amp breaker. if you do upgrade, you swap the 50a breaker out and remove the outlet.

Because I want to keep the outlet in case I need it later, like if the hard wired EVSE dies. Also it might be a convenient place for a 120V outlet which you can run off the sub panel with a 15 or 20 Amp breaker.

 

[generaltso]

Understand, that a 50 amp breaker with continuous load will only support 42 amps charge rate. I recommend that you install 6 wire and at least a 60 amp breaker. A 50 amp breaker will only support that load for a intermittent time. And it will drop capacity over time if run full load often. Code say's that for continuous load the circuit has to be rated 60%. As we see the technology progress, we are going to see faster chargers. So don't be afraid to oversize the circuit.

As others have said, it’s 80% not 60%. And 80% of 50A is 40A, not 42A.

 

[Fixbear]

I don't think this is correct. The load should not exceed 80% of the lowest current rating on the circuit. If any component (outlet, breaker, wire) has a current rating of 50 Amps, the steady state current cannot exceed 42 Amps.

I have never seen any NEC requirement refer to 60%. Where does that come from?

Article 210.20. Covers overcurrent protection. Continuous load is calculated at 125%. My Grizzle Charger will do 48 amps. That's a 60 breaker. But there are losses in the charger. So it draws 50 amps at max to make 48. Which calculates at 62.5 A. No such breaker and the closest is 70. So I just cut the charger back for a 50 for now. Next one I install I'll do a 60. Waiting on my second EV now.

 

[aevans17]

Just my $0.02… sub panel not necessary. Just extra cost. If you get a lightning you will need to rewire for 100amp. If you want to power your house with the lightning you’ll need other equipment for auto disconnect. Do your homework if you’re planning for a lightning and trying to future proof.

50 amp breaker is fine since most chargers with a plug use a 14-50. Yes the 14-50 has max current of 40 amps (80% of 50). GFCI is suggested by Ford but NOT required if the outlet is installed in a dry area.

If you have 200amp service with an existing EVSE a lightning at 80amp and Mach E at 32-40amp will be close to maxing out your panel so consult an electrician if you think you need to charge both at the same time.

 

[Fixbear]

Because I want to keep the outlet in case I need it later, like if the hard wired EVSE dies. Also it might be a convenient place for a 120V outlet which you can run off the sub panel with a 15 or 20 Amp breaker.

Set mine up with this outside on a panel board with the main GrizzlE Avalanche EVSE on one side and the MachE bracket on the other. We get a lot of cold here and the low temp charge cord of the Avalanche is a necessity.

 

[mkhuffman]

Set mine up with this outside on a panel board with the main GrizzlE Avalanche EVSE on one side and the MachE bracket on the other. We get a lot of cold here and the low temp charge cord of the Avalanche is a necessity.

This is my setup. I have the 50A breaker for the outlet turned off since I have not used it since I wired in the Emporia.

 

[21st Century Pony]

You are a bit over-worried
The Mach-E Supplied EVSE plugged into a 50 amp NEMA 14-50 only draws 32 amps - so with 400 amp service you have plenty of amps to go. The Electrical code says that you are not supposed to draw more than 80% from a circuit so that would mean 40 amps max. Ford ( supplied) EVSE gadget limits further to 32 amps. This delivers about 7 KW to your car and that works out to about ADD 20 miles per hour. So if you install a 50 amp circuit you are well covered.
If you had a Hard Wired EVSE gadget eg: Grizzl-E or WallBox since they are hardwired you can go to 40 Amps

So your 400 amp service to your house is plenty

Edited for clarity, down to "no comment".

 

[generaltso]

the Mach-E pulls a max of about 29 amps on a Level 2 wall or street charging station...

Not sure who told you that, but it’s not correct. Mine pulls 48A all the time.

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