Connecting the Voltage Supply up to 63 A


2764445580

The following figure shows a connection example in TN and TT utility grids in the case of installation at the grid-connection point when using the integrated measuring unit.

Procedure:

  1. Disconnect the connection point from voltage sources and make sure it cannot be reconnected.
  2. Connect the line conductors depending on the utility grid conditions to the Sunny Home Manager as follows:
    - in Three-phase utility grids connect the line conductors L1, L2, L3 and the neutral conductor N to the screw terminals at the input of the Sunny Home Manager.
    - in Single-phase utility grids connect the line conductor L1 and the neutral conductor N to the screw terminals at the input of the Sunny Home Manager.
    - in Delta IT utility grids connect the line conductors L1, L2 and L3 to the screw terminals at the input of the Sunny Home Manager. In addition, also connect the line conductor L3 to the neutral conductor N.
    - in Split phase grids (split-phase system) connect the line conductors L1 and L2 and the neutral conductor N to the screw terminals at the input of the Sunny Home Manager.
    Open each screw terminal using a cross-head screwdriver, insert the conductor into the contact terminal and tighten the screw (torque: 2.0 Nm).

If you do not want to use the Sunny Home Manager - as provided by default - as a bi-directional device, but should opt for only one of its two functions, the Sunny Home Manager must be connected as follows:

  • When only using it to measure the PV generation power:
    Connect the Sunny Home Manager to the common connection point of all PV inverters in the household grid.
    Information: To measure the grid exchange capacity, an SMA Energy Meter must be installed at the point of interconnection.

  • When only using it to measure the grid exchange capacity:
    connect the line conductor L1 and the neutral conductor to the screw terminals at the input of the Sunny Home Manager. Open each screw terminal using a cross-head screwdriver, insert the conductor into the contact terminal and tighten the screw (torque: 2.0 Nm).