Tesla Powerwall 2 AC Installation Manual page 41

Current Transformer Orientation
CTs must be installed with the label on the CT housing pointing toward the power source,
according to the following table and diagram (Fig. 41).
Figure 41: CT Orientation in Relation to Power Flow
CT Usage
Site CTs
Solar CTs
Load CTs
Current Transformer Capacity
Each CT included with the Gateway and the available accessory kits has a capacity of 200 A.
If the wiring configuration allows, it is possible to pass multiple conductors of the same type
through a single CT, provided the sum of the conductor's current ratings does not exceed the
CT current handling capacity. This is especially useful for systems with multiple solar inverters.
Figure 42: Multiple Conductors Passing Through a Single CT
CT Orientation
CT label facing toward the service entrance/grid
CT label facing toward the solar inverter
CT label facing away from the loads
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