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Old 04-14-2012, 11:44 PM   #1 (permalink)
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Join Date: Apr 2012
Location: Wisconsin
Posts: 146
Default Is your home ready for Level 2 charging?

Note: If your electrical sevice panel uses fuses instead of breakers, you should consult with an electrican. You may have to have secondary panel install or main service upgraded.

Swing open the door to the breaker panel. Now look for two open spots for the new breaker to be installed into. These will need to be next to each other.

This is the location were the double pole breaker for the level 2 charger will be installed.
Next you will need to find the main breaker for the panel. It should be marked as main disconnect and usually is found in the top spot of breaker panel. Typical main breaker values are 100, 125, 150, 200, and 225 amps. This is important because this limits the total current (amps) your home can use. Next find all the double pole breakers in the panel. These will be for electric range, electric dryer, electric hot water heater, central air conditioner, and hot tub. These are all high amperage use items.
An electric stove can be on a 50 amp breaker but draws up to 40 amps.
An electric dryer will be on a 30 amp breaker but draws up to 24 amps.
An electric water heater can be on a 30 amp breaker but draws up to 23 amps.
Central air conditioner can be on a 20 to 30 amp breaker. You will need to check the air conditioners name plate for this information. Check the name plate on the hot tub also.

Now add up all the numbers.
24 amps dryer
23 amps water heater
18 amps air conditioner
40 amps stove
30 amps EV charger
135 amps total

This doesn’t even include the homes lighting load.
To power all this you would need 200 or 225 amp main service panel.
Now if your home has all gas appliances you could still install a charger in panel that is only rated at 100 amps without any problems.
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