Level Two Charger?

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ritelec

ritelec

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Got a text asking to install a level two charger 24 amp...
I never heard of such a thing.. but I'm guessing it's a car battery charger.

Is it a 240 volt 24 amp rated continuous so basically a 30 amp circuit ??

A Google search also shows these rated at 7.2 kWh so thinking that would be a 40 amp circuit.. (30a @ 125% = 37.5)

Is that it?

Thank you..
 
Will read through 625..... book is in truck, but was wandering on circuit size... other requirements I'll check tomorrow.. thank you

Good night
 
ok.didn't call it a day yet,,
doing some reading.. in residential applications is it possible the home owner may get a charger that requires ventilation??

Here I'm thinking run a circuit, most the thing and done.ez peewee......
I'm seeing labeling now, ventilation requirements.......ok

tomorrows another day..
 
ritelec said:
ok.didn't call it a day yet,,
doing some reading.. in residential applications is it possible the home owner may get a charger that requires ventilation??

Here I'm thinking run a circuit, most the thing and done.ez peewee......
I'm seeing labeling now, ventilation requirements.......ok

tomorrows another day..
Click to expand...

That ventilation thing is not required for a standard car charger / power outlet. Level 2 is just 240v.
Level one being a standard 120v receptacle.
Fast chargers are the DC variety like the tesla super charger 60-120KW.
Those could require the ventilation as per the code section you were reading.
 
"24 amp" may refer to the output current and the input current might be completely different. The installation instructions that come with the charger should spell everything out.
 
ritelec said:
Got a text asking to install a level two charger 24 amp...
I never heard of such a thing.. but I'm guessing it's a car battery charger.
Click to expand...
Yes.

Is it a 240 volt 24 amp rated continuous so basically a 30 amp circuit ??
Click to expand...
Yes.

A Google search also shows these rated at 7.2 kWh so thinking that would be a 40 amp circuit.. (30a @ 125% = 37.5)
Click to expand...
No. kWh is kW-hours, which is a charge or discharge rate, not a power level.

Is that it?
Click to expand...
Yes. Just follow typical branch-circuit wiring methods.

Thank you..
Click to expand...
You're welcome. :)
 
drcampbell said:
"24 amp" may refer to the output current and the input current might be completely different. The installation instructions that come with the charger should spell everything out.
Click to expand...
These things aren't really chargers, they are just smart AC switches. So the input and output currents will be 24 amps, but it is a continuous load. They are properly called EVSEs.

Cheers, Wayne
 
The owner asked if he can have the charger inside and outside his garage...
I'm thinking no.. one circuit per charger and per outlet...
But sometimes in residential and with certain signage things are permitted...

What say ye.

One circuit = one outlet?

thank you..

(for grins - he was considering taking it off his light post.......... :- ) not a bad thought actually )
 
looks like he's going with a model 3 tesla...

doing some research, saw a guy on you tube feed an outdoor charger with 6-3 nmb .. curious about the neutral he didn't show his terming it... smh Figure maybe he made a mistake and only needed two wire so didn't want to show that section ??

Called Tesla support...... you can only get into their port for this info if your an owner... then in the next breath she says this info'e on line ....smh...

She sent this link...

https://www.tesla.com/support/home-charging-installation/mobile-connector

some show 3 wire with ground some show 2 wire with ground ??

You tube video showed hard wired, this link shows plugs ???

Owner says he's getting the model 3... 40 amp circuit is required... but he wants to future proof so I'm thinking 6 nm for a future 50amp or 6 mc for a future 60 amp ??

this is also a tesla suggested link...

model long range 11.5kw (60a) ... there's a chart on this link (enclosed) that doesn't show up on the mobile ??

https://www.tesla.com/support/home-charging-installation/wall-connector


I asked the girl about about the ventilation and air requirements.... she said well it is common sense it will need ventilation ..... :?

So there are question.....
size of circ
hard wired or plug
air requirements

hmmm.......................

(oh and if you go to their sight (Tesla) and search Nema, they list the recalls.....ugh)
 

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A few things:

1) Older (like a decade or two) electric cars used lead acid cells. If they weren't sealed, they could off gas hydrogen when being charged. So the J1772 protocol (EVSE protocol) allows the car to say "hey, I need ventilation when charging, is this a ventilated location?" And then in theory you can get a charger than says to cars "yes, this is a ventilated location", and then you have to set up ventilation that is active whenever the car is charging.

None of this applies to modern electric cars. They use lithium ion batteries, which don't off gas, and so you don't need to provide ventilation. I expect all EVSEs commonly sold today would tell a car there is no ventilation. In short, with a Model 3, ventilation is a non-issue.

2) EVSEs are 240V only, so they just need 2 hots and a ground. So if the EVSE is going to hardwired, or if it is has a NEMA 6-XX plug on it and you're going to use a 6-XX receptacle, then you just need to run 2 conductors plus ground. However, some EVSEs come with a 14-XX plug on them, which requires a 14-XX receptacle, which requires a neutral conductor, even though the EVSE won't use the neutral conductor.

Cheers, Wayne
 
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