EVSE and transfer switches

[cfly55]

Is there any article in the NEC that prevents both a 240v appliance (oven, dryer, hot tub) and Electric Vehicle Supply Equipment from being installed on a manual double-pole double-through transfer switch, so that the load can be manged between the two appliances as to prevent the electrical panel from being overloaded? One electrician is saying this is not allowed and that all appliances need to be directly wired into the electrical system, but a company out of CT had a product listed by UL that did this but it was automatic.

 

[iwire]

In my opinion the idea is code compliant.

I can't think of any code section prohibiting this.

 

[GoldDigger]

In my opinion the idea is code compliant.

I can't think of any code section prohibiting this.

If both are alternately powered from the same "branch" circuit, the OCPD needs to be Code appropriate for each appliance individually. Other than that, it seems to be fine.
There may be some who argue about the NEC load calculation, as it seems clear that they cannot be powered simultaneously. However there may not be any allowance in the code for taking advantage of that.

For heating and cooling equipment, the allowance is explicit.

 

[acrwc10]

"non-coincidental load" if the 2 items can or will not be used at the same time there is no problem.