What Size Wire for a Tesla Wall Connector?
Wire and breaker sizing for a Tesla Wall Connector — the typical 240V circuit, plus the code details (NEC Article 625) that change the answer.
Calculations are built on the 2023 National Electrical Code (NEC) and cross-checked against the published code tables. How we verify. Last reviewed June 2026.
Copper
6 AWG
On a 60A 240V circuit (Hardwired) at 75°C terminations. 60°C terminations: 4.
Aluminum
4
Protected by a 60A breaker (NEC 240.6).
Voltage
240V
Breaker
60A
Connection
Hardwired
GFCI
Not required
Tesla Wall Connector Circuit Details
- The Wall Connector is hardwired and field-configurable from 15A up to 48A output.
- At its 48A maximum it needs a 60A breaker and 6 AWG copper (continuous-load sizing).
- Set the connector’s dip-switch/app to match the breaker you install.
Long run to your tesla wall connector?
Over distance, voltage drop can require a larger wire than the table above. See the 60A wire size by distance:
Size it for your exact install
Open the calculator pre-filled with 60A at 240V to add distance, material and temperature.