SolarEdge SE66.6KUS - Connecting the Strings to the Connection Unit

7.
CrimpthelugsontheACwires.
CAUTION!
Onlyusecompressionlugsoftheone-holestandardbarrel600vtype.Donotuse
mechanicallugs(chairlugs)astheymayposeasafetyrisk.

NOTE
ThefollowingaretherequirementsfortheLugs:
l Boltholesize:M*(5/16").
l Compressionlugsonly(nomechanicallugs).
l Compressionlugsoftheone-hole,standardbarrel,600vtype.
l 4/0lugsshallbeofthenarrowtonguetype
l Maximumwiresize:4/0AWG
l Maximumlugtonguethickness:0.16"
l Maximumlugtonguewidth:0.9"
8. Applyheatshrinkinsulationtothelugbarrels.
9. Connectthewirestotheterminalblockswithapropertoolaccordingtothelabelsontheterminals.
10. Tightenthescrewsofeachterminalwithatorqueof15.0N*m
Wire type Connect to terminal
Line 1 L1
Figure 30: Wire connections to terminal block
Line 2 L2
Line 3 L3
Neutral N
11. Placethecoverontheterminalblockandpushuntilyouhearaclick.

Connecting the Strings to the Connection Unit
YoucanconnectsystemswithmultipleDCstringsinparalleltotheDCinputterminalsoftheConnection
Unit.
NOTE
The DC bus of each unit is separate and not shared for all units. Therefore in addition to following the
inverter design rules, each unit should follow the unit design rules as detailed in Technical
Specifications.
Chapter 4: Connecting the AC and DC Strings to the Connection Unit
-Three Phase Inverter with Synergy Technology Installation MAN-01-00402-1.4
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