[bhillard]

I'm installing a JuiceBox Pro 40 EV charger in my garage, and debating how I should set it up.

We just moved into the house, where there was a previous outdoor hot tub on a 50A breaker. A 6/3 line ran to a junction box just before running outside; once outside, it ran into an exterior box with disconnect/GFCI.

Inside this panel is a GFCI with a Definite Purpose Controller.

I was thinking of using this box to connect the EV charger. What I would do is run a new 6/3 electrical line from the inside junction box to the garage, install this box inside the garage, then direct wire the EV charger to this box.

I would post links to the EV charger as well as images for the disconnect box, but I just made this account here so I cannot post those yet.

The JuiceBox Pro 40 EV charger is easily searchable on Amazon. It has a 40A capability but will most likely only using 16-20A.

The definite purpose controller is a Furnas 42CF35A1, 50A 3 pole.

Thoughts? Would this box be beneficial? For reference, I am in the US, Pennsylvania, where 2015 NEC is effect. Thanks in advance for any advice or insight.

 

[rjniles]

A 240 volt EV charger does not require GFCI. Run the cable directly to the charger and replace the breaker with a 2 pole 40 amp. There is no 2015 NEC, PA is on 2014.

Sent from my RCT6A03W13E using Tapatalk

 

[bhillard]

I should have stated, yes, its already on a double pole breaker. Given that the charger has up to a 40A capacity, and the rule-of-thumb is that the continuous load should be 80% of the rated value, the breaker should be sized at 50A.

And yes, 2014 NEC is what I was referring to (the Township lists it as 2015 on their site *shrugs*

What I was thinking is that there should be a disconnect at the charger, which is why I was going to install the disconnect box. But I had also considered direct wire, which is what a colleague suggested as well.