Reached out to a few electricians to install a charging outlet. My preference is for a NEMA 14-50 outlet as I don't want to be tied to a wall connector especially since my next EV may not be a Tesla. Of the three electricians, work scope was consistent, and couple did put forward an extra cost for city inspection, while the other said it was not necessary.
Yet another company put forward work scope that raised some questions. In summary they recommend against a mobile connector because "NEMA receptacles were required by code as of 2020 to use GFCI protected breakers. These breakers are more sensitive so they have issues with nuisance tripping. Some of our customers requested us to replace their NEMA receptacles with hardwired chargers because they weren't receiving a consistent charge throughout the night. Hardwired chargers like the Wall Connector have built in GFCI protection, so they can use a standard circuit breaker instead, which ironically enough is more consistent. The reason we'd recommend to install the small sub panel if you went with a NEMA receptacle is because we found they are a bit less likely to trip the breaker. This will potentially reduce the issue of your charger tripping."
Other electricians are saying a mobile connector is just fine if it meets your driving needs (there should never be nuisance tripping of the breaker) and the need to install a "small sub-panel next to the NEMA receptacle" is a complete waste?
Any thoughts?
Yet another company put forward work scope that raised some questions. In summary they recommend against a mobile connector because "NEMA receptacles were required by code as of 2020 to use GFCI protected breakers. These breakers are more sensitive so they have issues with nuisance tripping. Some of our customers requested us to replace their NEMA receptacles with hardwired chargers because they weren't receiving a consistent charge throughout the night. Hardwired chargers like the Wall Connector have built in GFCI protection, so they can use a standard circuit breaker instead, which ironically enough is more consistent. The reason we'd recommend to install the small sub panel if you went with a NEMA receptacle is because we found they are a bit less likely to trip the breaker. This will potentially reduce the issue of your charger tripping."
Other electricians are saying a mobile connector is just fine if it meets your driving needs (there should never be nuisance tripping of the breaker) and the need to install a "small sub-panel next to the NEMA receptacle" is a complete waste?
Any thoughts?