Gateway 3 Wiring Diagrams

Powerwall 3 with Gateway 3 (Whole Home Backup)

  • All loads and Tesla equipment breakers are downstream of the Gateway 3 contactor.
  • Site-level metering is performed by integrated Site CTs.
  • Internal panelboard may be used for Tesla equipment breakers.
  • Neutral-Ground Bonding Screw remains installed only if Gateway 3 is main service entrance equipment.
Informational PurposesAn informational icon, calling your attention
Note
Partial home backup is not possible on Powerwall 3 with Gateway 3 installations, as there are no metering options for non-backup loads.
Figure 1. Whole Home Backup with Standalone Meter
Figure 2. Whole Home Backup with Meter Load Center
Figure 3. Whole Home Backup with Standalone Meter - Disconnect before External Generation Panel
Figure 4. Whole Home Backup with Standalone Meter - Disconnect before Internal Panelboard
Informational PurposesAn informational icon, calling your attention
Note
This configuration requires the removal of the jumper between the backup lugs and the internal panelboard. Two conductors of the same size and material are landed in each of the lower backup lugs.