Connecting Ac To The Inverter - SolarEdge SE330K Installation Manual

Perform the following steps before connecting lugs to aluminum wires:
a. Remove oxide from the exposed wires with emery paper or a steel-wire brush.
b. Clean dust with a cloth and Isopropyl alcohol (IPA).
c. Coat wires with a designated antioxidant aluminum wire grease immediately after
cleaning.
6. Crimp lugs on the DC wires.
CAUTION!
For aluminum wires, USE ONLY aluminum lugs For copper wires, USE ONLY
copper tin-plated lugs.
7. Connect the DC wires to the DC burbar according to the labels on the terminals.
Tighten the nuts to 34.98 N*m/25.8 lb*ft (see Figure 25 ).
CAUTION!
DO NOT use an impact driver or any electrical tool to fasten the terminal
screws.
8. Tighten nut of the DC and PE glands to 5 N*m/3.69 ft*lb.
9. Place the cover of the DC terminal block in position and push until you hear a lock
click.
10. Close the front cover of the inverter and fasten the screws to 3.53 N*m/2.6 lb*ft.

Connecting AC to the Inverter

This section describes how to connect the AC and ground to the Inverter.
SE330K Inverter P/N: SE330K-xxxxxxxxx
Figure 26: Connecting the DC wires to the Inverter
Chapter 4: Installing the Inverter 52