Step 7. Install A Circuit Breaker In The Backup Gateway - Tesla Powerwall 2 AC Installation Manual

Step 7. Install a Circuit Breaker in the Backup Gateway

If the Backup Gateway is to be located between the electrical service entry and the main
electrical panel, a circuit breaker must be added to the service inlet of the Backup Gateway. If
no circuit breaker is required, skip to Step 8, "Mount the Backup Gateway."
WARNING: If a circuit breaker is not added to the Backup Gateway, ensure that
appropriate overcurrent protection is provided for the installation.
CAUTION: To reduce the risk of fire, connect only to a circuit provided with 200 A
maximum branch-circuit overcurrent protection, in accordance with the National Electrical
Code, ANSI/NFPA 70.
The following circuit breaker models are supported:
Circuit Breaker Model
Siemens MBK 100A
Siemens MBK 125A
Siemens MBK 150A
Siemens MBK 200A
1. Determine the level of overcurrent protection required, based on local code requirements.
2. Remove the service inlet terminal lugs from the Backup Gateway. (It may be necessary to
remove the meter current transformers to access the nuts holding the lugs in place.)
3. Install the corresponding size circuit breaker at the service inlet terminals in the Backup
Gateway.
Amperage Rating
100 A
125 A
150 A
200 A
Figure 27: Removing the Inlet Service Terminal Lugs
UL Type
EQ8681
EQ8682
EQ8693
EQ8695
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