Wall Charger Amp Setting

[nwdiver]

Maybe harder than you think, since you need to multiply by 0.8.

Not to determine the circuit rating. If you want a 48A load you divide 48A by 0.8 so you need a 60A circuit.

 

[Rocky_H]

How hard is it to divide a number by 0.8 to determine the required circuit rating?

Maybe harder than you think, since you need to multiply by 0.8.

Nope. 48A load, divided by 0.8 equals the circuit rating of 60A.

 

[MariaC]

I had an electrician install the wall connector and he put in a 50-amp breaker but set the charger to charge at 60A. Is that a hazard? Can I buy a 60A breaker and swap it out? Or is there more to it?

You should not charge at more than 32 amps on a 50 amp breaker. No way should you exceed 50 amps on a 50 amp breaker, setting the car system at 60 amps should pop the breaker.. Fire hazard if it doesn't pop the breaker. I will set my system to 25 amps on a 50 amp breaker. It saves the battery.

 

[nwdiver]

You should not charge at more than 32 amps on a 50 amp breaker. No way should you exceed 50 amps on a 50 amp breaker, setting the car system at 60 amps should pop the breaker.. Fire hazard if it doesn't pop the breaker. I will set my system to 25 amps on a 50 amp breaker. It saves the battery.

40A on a 50A breaker is fine. And your battery is designed to charge at >50kW. Probably ~250kW so ~10kW(40A) is nothing.

 

[gfunkdave]

Nope. 48A load, divided by 0.8 equals the circuit rating of 60A.

Oh, hehe then I was working backwards from 60A to 48.