Submitted by shaneqi on Mon, 2018-08-20 15:00
Should I install the wall connector on a 60A or a 100A circuit breaker?
Currently, we only have a Model X 75D, whose charger capacity is 48A. So a 60A would be adequate.
But installing the 100A only costs ~$200 more than the 60A. So I'm thinking what's the advantage of a 100A over a 60A.
The obvious advantage is that 100A would be useful if we have another Tesla car with larger charger capacity, say MX P100D (72A) (but not likely in my family's case).
And one of the electricians told me that charing 2 Tesla cars would be easier with a 100A circuit breaker. It sounds about right at first, but I thought about it twice and came up with some doubts:
0. Let's say our second Tesla car will be a long range M3 (charger capacity: 48A).
1. If we want to charge the 2 cars at the same time, the combination charger capacity of our 2 cars will be 48A + 48A = 96A. Which means that a 100A circuit breaker won't be safe.
2. If I daisy chain 2 wall connectors, would I be able to take the advantage of the full 100A (80A for safety)? (where can I find more info about daisy chaining 2 wall connectors?)
Forgive my ignorance about electricity, correctly me if I'm wrong.