E.V Carger load calc

[Toros]

Hi
where in code talks about load calc, (80% demand off 40A @ 208V) E.V car charger
and 125% demand since they are L.C.L

Tanx

 

[LEO2854]

Hi
where in code talks about load calc, (80% demand off 40A @ 208V) E.V car charger
and 125% demand since they are L.C.L

Tanx

Article 625.40

III. Installation
625.40 Overcurrent Protection. Overcurrent protection for feeders and branch circuits supplying electric vehicle supply equipment shall be sized for continuous duty and shall have a rating of not less than 125 percent of the maximum load of the electric vehicle supply equipment. Where noncontinuous loads are supplied from the same feeder or branch circuit, the overcurrent device shall have a rating of not less than the sum of the noncontinuous loads plus 125 percent of the continuous loads.

 

[Rampage_Rick]

Most EVSEs (chargers) take the 80% into account. If a unit specifies a 40A circuit then it's probably a 30A or 32A charger (which is the most common size) Very few models exceed 32A since most vehicles aside from a Tesla won't make use of it.