Step 10: Make Ac Power Connections - Tesla Powerwall 2 AC Installation Manual

Step 10: Make AC Power Connections

1. Determine whether the installation requires that neutral be bonded to ground in the Backup
Gateway. (In most cases, if the Backup Gateway is to be located between the electrical service
entry and the main electrical panel, neutral should be bonded to ground, otherwise, bonding
should be removed.)
The Backup Gateway ships with neutral bonded to ground. To remove bonding, disconnect
the green wire between the ground bar and the neutral terminals.
Figure 37: Backup Gateway Ground Bar (top left) Bonded to Neutral (bottom right)
2. Connect the electrical service from the service inlet or from the main panel (depending on
the backup configuration) to the Backup Gateway terminals according to the following table
and diagram (Fig 38). Strip the ends of the wires and insert them in the corresponding Backup
Gateway terminal lugs. Tighten the lugs to 30 Nm (22 lb-ft).
NOTE: For electrical service connections to the Backup Gateway, use 16-120 mm
250 kcmil), 90 deg C minimum copper (Cu) wire.
Service Connection
Line 1
Line 2
Neutral
34
Backup Gateway AC Wiring
Backup Gateway Terminal
S1
S2
N
2
Wire Gauge
16–120 mm 2 (6 AWG - 250 kcmil)
16–120 mm 2 (6 AWG - 250 kcmil)
16–120 mm 2 (6 AWG - 250 kcmil)
Powerwall Installation Manual
(6 AWG to