Appendix C: System Wiring Diagrams

      • Overview
      • Single-Phase Service (TN Network)
      • Three-Phase Service (TN Network)
      • Powerwall 3 Installation Manual with Backup Gateway 2
      • General Warnings and Information
      • Specifications
        • Powerwall 3 Specifications
        • Powerwall 3 Expansion Specifications
        • Backup Gateway 2 Specifications
        • Tesla 100A CT Specifications
        • Tesla Remote Energy Meter Specifications
      • Registering Powerwall 3
      • Powerwall 3 System Overview
        • Powerwall 3 Overview
      • Powerwall 3 System Design Guidance
        • Design Considerations
        • System Sizing
          • Backup Loads Supported per Powerwall Quantity
          • Powerwall 3 DC System Sizing
          • AC-Coupled Solar System Sizing
          • Undersized Powerwall 3 Systems
        • Energy Metering
      • Site Requirements and Pre-Installation Guidance
      • Preparing for Installation
        • In the Powerwall 3 Box
          • In the Powerwall 3 Accessory Bag
        • In the Backup Gateway 2 Box
          • In the Backup Gateway 2 Accessory Bag
        • Powerwall 3 Service Parts, Orderable Parts, and Accessories
        • Required Supplies
        • Required Tools
      • STEP 1: Plan the Installation Site
        • Choose a Location that Meets Powerwall 3 Clearance Requirements
        • Plan Powerwall 3 Mounting Configuration
        • Plan Cable Length Between Components
        • Choose Powerwall Cable Entry
        • Plan Amount and Size of Conduit or Raceway
      • STEP 2: Remove Powerwall 3 from Packaging and Transport Using the Powerwall Dolly
      • STEP 3: Wall-Mount Powerwall 3 Using Wall Bracket
      • STEP 4: Install Backup Gateway 2
        • Mount the Backup Gateway
        • Verify Neutral-Earth Bonding Scheme and Install Earthing Rod
        • Make AC Power Connections to Supply and Load Panels
        • Install Powerwall and Generation Breakers in the Backup Gateway
        • Configuring Powerwall(s) on Three-Phase Installations
        • Inverter Configuration
      • STEP 5: Connect Powerwall 3 to Backup Gateway
      • STEP 6: Make Powerwall 3 AC Circuit Connections
      • STEP 7: Make Solar PV Connections
      • STEP 8: Install Clamp-on Ferrite Cores
      • STEP 9: Install Energy Metering
        • Install Tesla 100 A CTs
        • Install Tesla Remote Energy Meter and CTs
          • About Tesla Remote Energy Meter
          • Install the Tesla Remote Energy Meter and CTs
      • STEP 10: Complete the Installation
        • Plan Internet Connection for Powerwall
        • Close Backup Gateway 2 Wiring Compartment
      • STEP 11: Turn On and Commission the System
        • Commission the System Ahead of Solar Installation
        • Commission the System After Powerwall and Solar Installation
      • STEP 12: Install Powerwall 3 Front Cover
      • STEP 13: Demonstrate the Installation
        • Technical Support
        • Maintenance
      • Appendix A: Powerwall 3 Anchoring Details
        • General Anchoring Notes
        • Anchoring Details for Ground- or Wall-mounting Powerwall 3 with Wall Bracket on Existing Approved Foundation
        • Powerwall 3 Center of Mass
      • Appendix B: Wiring Reference
        • Powerwall 3 AC and PV Wiring
          • Powerwall 3 as a Wiring Raceway (Multi-Unit Installations Only)
        • Tesla Asset Controller (TACO) Low Voltage and Communication Wiring
          • Prepare Ethernet Wiring with RJ45 Connectors
        • Backup Gateway 2 Wiring
          • Grid Supply Fuse and Fuse Holder
        • Backup Gateway 2 Communication Wiring
        • Residual Current Devices (RCDs) / Residual Current Circuit Breakers with Overcurrent Protection (RCBOs)
      • Appendix C: System Wiring Diagrams
        • Overview
        • Single-Phase Service (TN Network)
        • Three-Phase Service (TN Network)
      • Appendix D: Install External DC Isolation
      • Appendix E: (Optional) Install System Shutdown Switch
      • Appendix F: Safety Features
        • Powerwall 3 Switch Locking Mechanisms
        • Arc Fault Detection and Protection
        • Protective Earth Impedance Check
        • System LED Behavior
          • Powerwall 3 LED Behavior
      • Appendix G: Installing Multiple Powerwall 3 Units and/or Expansion Units
        • Install Multiple Powerwall 3 Units
        • Install Expansion Units with Powerwall 3
          • Install Stacked Expansion Units
          • Wall Mount an Expansion Unit
      • Appendix H: Shutting Down Powerwall 3
      • Appendix I: Troubleshooting
        • Situations in Which Powerwall 3 Stops Grid Forming
        • Identifying Powerwall 3 Manufacture Date
      • Appendix J: Revision History
      • © Tesla 2025
      • Submit Feedback