Plan Cable Length Between Components
Follow the table below for maximum distances between system components. Wire gauge must meet local codes and in some circumstances wire gauge requirements change based on distance. Refer to Appendix B for wire gauge requirements.
| Maximum Cable Length | |
|---|---|
| CAN communication wiring between Backup Gateway 2 and Leader Powerwall 3 | 45 m for 1.5 mm2 wire |
| 35 m for 1 mm2 wire | |
| Wired Ethernet connection between any two devices* | 100 m per Ethernet standard |
| Total PV circuit distance** | 160 m |
*This measurement refers to the distance between Powerwall 3 and the customer's internet router, or between two Powerwall 3 units.
**Ensure that total DC circuit distance, from + MPPT terminal to - MPPT terminal
(including module wire leads, jumper wires and all wiring within the array boundary for
any individual string), does not exceed 160 m for single strings
- Total DC circuit distance refers to the entire round trip wire distance, from Powerwall 3 to the roof, then back to Powerwall 3
CAUTION
Failure to follow
minimum cable size and length requirements may result in intermittent or unreliable
operation of the Powerwall system. In systems that do not meet these minimum
requirements, performance issues may arise even after successful commissioning.
Maximum Tesla 100 A CT Extension
Note
The Tesla 100 A CTs are installed with Backup Gateway 2.
| Tesla 100 A CTs (Remote Metering) | Maximum Extension Length |
|---|---|
| Using Tesla 100 A CT Extension 3 m (Tesla P/N 1467274-00-x) | Up to 3.8 m |
| Using 0.5 mm2 or larger twisted pair conductors | Up to 100 m |
Maximum Tesla 200 A CT Extension
Note
The Tesla 200 A CTs are
installed with Tesla Remote Meter. See Install the Tesla Remote Energy Meter and CTs for additional distances to measure when installing Tesla Remote Meter.
| Tesla 200 A CTs (Remote Metering) | Maximum Extension Length |
|---|---|
| Using up to (2) Tesla 200 A CT Extension 3.5 m (Tesla P/N 2060713-00-x) | Up to 8.5 m |