Circuit Breaker Rating / Maximum Output
Power Output
For maximum power output, install a standard double pole 60 amp circuit breaker.
Wall Connector incorporates automatic load management, which allows the max output to be customized to an existing power supply.
If the electrical supply is unable to support the 60 amp configuration, select a lower amperage configuration.
| Circuit breaker (amps) | Max output (amps) | Power output at 240 volts (kW) |
|---|---|---|
| 60 | 48 | 11.5 |
| 50 | 40 | 9.6 |
| 40 | 32 | 7.6 |
| 30 | 24 | 5.7 |
| 20 | 16 | 3.8 |
| 15 | 12 | 2.8 |
Note
External disconnect switches are neither
required nor recommended.
Note
Circuit breaker size is programmed during
the commissioning process. See Commissioning Procedure for details.
Note
Some Tesla vehicles may draw less current
than the max output. Actual charging rate depends on Wall Connector output and onboard charger
in the vehicle.
Branch Circuit Conductors and Ground Wire
- If installing for less than maximum power, refer to local electrical code to select correct conductors and ground wire size that are suitable for the chosen circuit breaker.
- For maximum power, check temperature rating
of circuit breaker used:
- For 60°C rated circuit breaker, use minimum 4AWG, 90°C THWN-2-rated copper wire for conductors.
- For 75°C rated circuit breaker, use minimum
6AWG, 90°C THWN-2-rated copper wire for conductors.NoteIncrease conductor size if necessary.
- For sites with multiple Wall Connectors, the group power management feature can enable the safe utilization of a single branch circuit. See single line examples in Breaker and Branch Circuit Setup.
- COPPER WIRE TERMINATIONS ONLY for landing in Wall Connector wirebox terminals. Conductors can be stranded or solid.
- Hardwire branch circuits to disconnects or circuit breakers. Do NOT install cord-and-plug type connections.
- For outdoor installations, use watertight fittings when securing feeder wires to the wirebox.
Grounding Connections
Wall Connector must have a ground path back to the main equipment earthing point on site. Without a proper ground connection, the Wall Connector will fault during a ground assurance test. Equipment-grounding conductor must be run with the circuit conductors and connected to the equipment-grounding terminal in the wirebox. Install a ground (PE) wire sized according to local electrical code.