Tesla Backup Gateway 3 | 1841000 | Split Phase | Used by Powerwall 3 System
You cannot install Powerwall 3 without Gateway 3. It’s essential for:
- Backup switching
- Energy management
- System monitoring
See the specs
Tesla Gateway 3 controls connection to the grid in a Powerwall system, automatically detecting outages and providing seamless transition to backup power. It provides energy monitoring that is used by Powerwall for solar self-consumption, time-based control, and backup operation.
The Gateway 3 is installed in partial and whole home backup systems. Powerwall controls operation of the system, while Gateway 3 monitors energy usage and manages the transition to and from backup operation.
Product Overview
| Module | 1841000-x1-y |
| Nominal Grid Voltage | 120/240 V AC |
| Continuous Current Rating |
200 A |
| Weight | 16.3 kg (36 lb) |
| Mounting | Wall-mounted |
| Certifications | UL 67, UL 869A, UL 916, UL 1741 PCS, CSA 22.2 107.1, CSA 22.2 29 |
| Warranty | 10 Years |
Typical Use Case (2026)
Gateway 3 is used when:
- You want partial load backup
- Your utility doesn’t approve backup switch
- You need more flexible wiring / control
Tesla Gateway 3 = intelligent transfer switch + energy meter + control system
It’s not just a switch — it’s what enables:
- seamless backup
- smart energy usage
- system visibility
Product Specifications
- Dimensions: 660 x 411 x 149 mm (26 x 16 x 6 in)
- Environment Indoor and outdoor rated
- Mounting Options: wall mount
- Enclosure rating: NEMA 3R
Shipping and Packaging
- The product can only ship via freight truck
Download
Datasheet
Gateway-3-Datasheet.pdf
Powerwall-3-(Expansion)-Datasheet.pdf
BackupGateway-2-Datasheet.pdf
BackupSwitch-Datasheet.pdf
User Manual
Powerwall-3-Owner-Manual-EN-US.pdf
Warranty
Powerwall-Warranty-EN.pdf
About Tesla
Tesla is building a World of Amazing Abundance, which powered by solar energy, running on batteries and transported by electric vehicles. Explore the most recent impact of products, people and supply chain.
FAQ
Yes. Powerwall 3 is compatible with all major solar inverter brands and can support various existing system sizes.
No. Powerwall 3 can be added to other Powerwall 3 batteries but cannot be added to Powerwall 2 or Powerwall+ batteries
Powerwall 3 is covered by a 10-year warranty, same as Powerwall 2 and Powerwall+
Powerwall 3 Expansion is designed for Powerwall 3 owners looking to extend backup duration at a reduced cost. Each Powerwall 3 Expansion unit provides 13.5 kWh of additional energy capacity and can easily be installed with your Powerwall 3.
Happy Customers's Case
