SolarEdge Solar Inverter - Page 23

Chapter 3: Installing the Inverter
SolarEdge Installation Guide – MAN-01-00057-2.2
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5 Depending on the inverter type (single phase or three phase), connect the AC, as follows.
Connect the PE (grounding) wire first.
Single Phase Inverter
Figure 9: Single Phase Inverter AC Terminals
Wire type
Connect to terminal
Protective Earth
PE
Line
L
Neutral
N
Three Phase Inverter
Figure 10: Three Phase Inverter AC Terminals
Wire type
Connect to terminal
Line 1
L1
Line 2
L2
Line 3
L3 (feeds the internal
power supply)
Protective Earth
PE
Neutral
N
NOTE:
If power control is enabled, it is important to respect the order of grid lines connection to the
inverter. A 120deg phase difference should be kept between L1 to L2 and between L2 to L3 (L1-
L2-L3 and not, for example L1-L3-L2).
If the grid lines are not in this order, an error is displayed on the LCD and the inverter will not
produce power.
6 Tighten the screws of each terminal with a torque of 1.2-1.5 N*m / 0.88-1.1 lb*ft.
7 Check that the wires are fully inserted and cannot be pulled out easily.
8 Tighten the AC cable gland with a torque of 2.8-3.3 N*m / 2.0-2.4 lb*ft.
9 Verify that there are no unconnected wires to the inverter and that the unused terminal screws are
tightened.
L1 L2 L3 N (PE)
PE L N