Td78
Well-Known Member
- Thread starter
- #1
Does anybody in the US have any experience with chargers that are available in the US that can be wired to 120/208 volt three-phase power? (Preferably something residential-grade and costs less than $1,000....)
Tesla chargers include instructions that say you can directly wire the charger to two of the three phases. None of the other US chargers appear to offer such an option, based on a couple hours of internet searches.
Interestingly, National Electric Code permits RV parks to wire the NEMA 14-50 outlets to two phases of a three-phase service. But it seems this could damage other 240 volt equipment that is not designed to accept two phases that are offset 120 degrees. As such, it appears it would be against code to install such an outlet at my office. Although it does appear this type of wiring is acceptable for power that feeds a transformer, like RVs and possibly EVs, which means maybe the right thing to do is put in a three-phase outlet, then find a dogbone that converts two of those three phases to a NEMA 14-50 receptacle, and plug a regular charger into that.
Tesla chargers include instructions that say you can directly wire the charger to two of the three phases. None of the other US chargers appear to offer such an option, based on a couple hours of internet searches.
Interestingly, National Electric Code permits RV parks to wire the NEMA 14-50 outlets to two phases of a three-phase service. But it seems this could damage other 240 volt equipment that is not designed to accept two phases that are offset 120 degrees. As such, it appears it would be against code to install such an outlet at my office. Although it does appear this type of wiring is acceptable for power that feeds a transformer, like RVs and possibly EVs, which means maybe the right thing to do is put in a three-phase outlet, then find a dogbone that converts two of those three phases to a NEMA 14-50 receptacle, and plug a regular charger into that.
Sponsored