CT & Harvi Requirements
Here are the CT & Harvi requirements for Zappi Installation to measure power supply, PV supply (Solar) and Battery.
Single Phase Zappi (7KW) comes with 1 x CT Clamp to measure the grid, but can wire up to 3 x CTs internally for PV or battery monitoring. A Harvi is required for additional CTs.
Three Phase Zappi (22KW) come with 3 x CT Clamps to measure the grid and can only wire up to 3 CTs internally. Harvi's are required for additional CTs.
If you have any questions please contact us.
 Single Phase Power with 7kW Zappi Hardware Guidelines
| Solar | Battery | Harvi | Additional CTs Required |
|---|---|---|---|
| No | No | 0 | 0 |
| Yes | No | 0 | 1 |
| Yes | AC | 0 | 2 |
| Yes | DC | 0 | 1 |
Three Phase Power with 22kW Zappi Hardware Guidelines
| Solar | Battery | Harvi | Additional CTs Required |
|---|---|---|---|
| 3 Phase | No | 1 | 3 |
| 3 Phase | AC | 2 | 4 |
| 3 Phase | DC | 1 | 3 |
| 1 Phase | No | 1 | 1 |
| 1 Phase | AC | 1 | 2 |
| 1 Phase | DC | 1 | 1 |
