Verify Neutral-Earth Bonding Scheme

Proper earth connection and Neutral-to-Physical Earth (N-PE) bonding is required for safe operation of the Powerwall system and for compliance with local code requirements. The correct Neutral-to-Earth bonding scheme must be maintained even when the system is disconnected from the grid.

The neutral conductors must not be broken in Australia and New Zealand on TN-C-S networks in off-grid operation. Neutral and Protective Earth (PE) conductors are separated at the main switchboard, and the MEN (Mutliple Earthed Neutral) link is maintained at a single point of connection between neutral and protective earth. With the N-N Jumper Bar installed, neutral will not be broken during off-grid operation.

Figure 1. Neutral Conductors are not disconnected in Off-Grid Operation with Factory Installed N-N Jumper Bar
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
Incorrect earthing or Neutral-to-Protective Earth (N-PE) bonding presents a risk of electrical shock or damage to equipment. Verify that the system is properly earthed and that the correct Neutral-to-Earth bonding scheme meets regional and local requirements.