Sunway NT 2600, NT 6000 Grid connection, Three-phase grid connection distributed over three units

Grid connection

!

The grid connection of the solar inverter must have 5 wires (L1, L2, L3, PE, N). Cable cross-sections of 5 x 4 mm2 are recommen- ded.

The solar inverter is connected to the supply grid via the circuit board terminals inside the unit.

As line safety element in the grid feed-in direction, we recommend a 3 x 25 A auto- matic cut-out. No consumption units must be connected to the feed line from the solar inverter to the automatic cut-out. The solar inverter only feeds in via termi- nal L1.

If several solar inverters are operated in parallel, the feed-in phase L1 of the unit

must be evenly distributed over gridEN phases L1, L2 and L3 (see figure below).

Three-phase grid connection distributed over three units

L1 N L2 L3 PE L1 N L2 L3 PE L1 N L2 L3 PE

L1

L2

L3

N

PE

95