What EV Charger Do You Need for a 2020 Tesla Model X?
You need a 48 amp EVSE to charge this car at its peak rate. Your onboard charger caps the AC intake at 11.5 kW. A bigger supply unit changes nothing because the car rejects the excess. Feed it 48 amps and call it done.
The numbers
| Maximum AC charging rate | 11.5 kW (48 A) |
|---|---|
| Charger size to buy | 48 A |
| Circuit breaker required | 60 A |
| Outlet / connection | hardwired (a 48 A EVSE must be hardwired -- no household receptacle is rated for it) |
| Charge port | NACS |
| Full charge on Level 2 | about 9.8 hours |
| Range added per hour (Level 2) | about 36 miles |
| Full charge on a 120 V outlet | about 78 hours |
| Range added per hour (120 V) | about 4.5 miles |
| EPA rated range | 351 miles |
| Energy for a full charge | about 112.9 kWh at the wall |
Why 48 amps and not more
The vehicle draws 48 amps max, so buying a larger charger wastes money. Units rated above 48 amps cost more, require heavier wire, and provide zero speed gains here. Hooking this car up to a 48 amp circuit yields 36 miles of range per hour. It empties the battery from zero in 9.8 hours. Smaller units take longer without offering any electrical benefit.
What the install involves
Wiring this setup demands a 60 amp breaker paired with heavy-gauge copper conductors. Hardwiring is mandatory because no household receptacle handles 48 continuous amps safely. Code prohibits plugs at this amperage level due to melt risks under continuous load. Hire a licensed electrician to run the line, mount the unit, and pull the local permit.
Chargers that match this car
Your car has a NACS port. The NACS units below plug straight in; any J1772 unit works with the adapter supplied with the car.
Native NACS plug, no adapter needed.
Dual plug: works with NACS and J1772 cars.
Tesla's own unit. Native NACS, hardwire only.
Worth having as well
Common questions
- Can I use a standard wall outlet?
- Level 1 charging from a standard household outlet gives you 4.5 miles of range per hour. A full recharge takes 78 hours this way.
- What connector does this car use?
- Tesla vehicles use the NACS connector. The Tesla Wall Connector is native, and a J1772 adapter ships with the car for third-party Level 2 units.
- Why does the EPA charge time differ from the peak rate?
- The EPA tests show 12.0 hours and 29 miles per hour. That test procedure accounts for efficiency losses and charging overhead that do not apply to raw onboard charger math.
- What equipment should I buy?
- The Tesla Wall Connector delivers 48 amps via a hardwired connection and features a 24.0 foot cable. It matches the onboard charger limits exactly.
Other vehicles
Charging times derived from EPA data for the 2020 Tesla Model X (covering 5 EPA trim listings). Electrical requirements follow NEC 625.41, which sizes a circuit at 125% of a continuous load. Always have a licensed electrician verify your panel.