Tesla Backup Switch | 16241721 | Split Phase | Installed Behind Meter | Whole Home Only
Tesla Backup Switch = simplest, fastest way to get whole-home backup with Powerwall
- Works with: Powerwall 2 / Powerwall+ / Powerwall 3
- Replaces traditional Gateway in many installs
- Great for cost and simplicity
- But limited by utility approval + flexibility
See the specs
The Tesla Backup Switch controls connection to the grid in a Powerwall system, and can be easily installed behind the utility meter or in a standalone meter panel downstream of the utility meter.
The Backup Switch automatically detects grid outages, providing a seamless transition to backup power. It communicates directly with Powerwall, allowing home energy usage monitoring from any mobile device with the Tesla app.
Product Overview
| Module | 16241721-xx-y |
| Continuous Load Rating | 200 A, 120/240 V split phase |
| Maximum Supply Short Circuit Current |
22 kA with breaker |
| Weight | 2.8 lb |
| Mounting | Installed behind the utility meter |
| Certifications | USA: UL 414, UL 414 SB, UL 2735, UL 916, CA Prop 65 |
| Expected Service Life | 21 years |
| Warranty | 10 Years |
Compatibility
Works with: Powerwall 2 / Powerwall+ / Powerwall 3
When to Choose Backup Switch (2026)
Best if:
- You want lowest install cost
- Your utility approves it
- You want clean, simple system
Tesla Backup Switch = simplest, fastest way to get whole-home backup with Powerwall
- Replaces traditional Gateway in many installs
- Great for cost and simplicity
- But limited by utility approval + flexibility
Product Specifications
- Dimensions: 176 x 205 x 74 mm (6.9 x 8.1 x 2.9 in)
- Meter and Socket Compatibility: ANSI Type 2S, ringless or ring type
- External Service Interface: Contactor manual override Reset button
- Conduit Compatibility: 1/2-inch NPT
- Enclosure rating: NEMA 3R
Shipping and Packaging
- The product can be delivered by express.
Download
Datasheet
BackupSwitch-Datasheet.pdf
Powerwall-3-(Expansion)-Datasheet.pdf
Gateway-3-Datasheet.pdf
BackupGateway-2-Datasheet.pdf
User Manual
Powerwall-3-Owner-Manual-EN-US.pdf
Warranty
Powerwall-Warranty-EN.pdf
About Tesla
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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
