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Step 1. Connect the equipment grounding conductor from arrays of the AC modules system to the terminal for
grounding in the distribution panel.
Step 2.
1
Connect the hot conductors and neutral conductor in a general AC cable from the AC junction box to the
designated terminal in the distribution panel.
2
Then, connect conductors in transition cables to the AC junction box as shown above.
Step 3. Check the cables to verify they have not been pulled too tight or are hanging too loose. If necessary, fixate
them using the cable fixing holes on PV module frame with fixing holders, such as cable ties, so that the
cables do not touch the ground.
To form balanced three phases, it is recommended to use 3-array equal to the number of AC modules in each array .
Below is other example for AC output cables connection of three phase 208VAC.
AC output three phase 208VAC - split type
G
00000
NL1L2L3
An array of AC modules AC junction box Distribution panel
Meter
X11
X11
X11
3-pole
( Determined
according to the
total current)
2-pole
20A
Transition Cable (Array ÷ AC Junction Box)
Conductor Color Description
L1 Black Line to neutral voltage 120VAC.
L2 Red Line to neutral voltage 120VAC.
Neutral White Common conductor used in the AC module for voltage measurements.
External Equipment Grounding Conductor (Array ÷ Distribution Panel)
Ground Green Conductor to connect normally non–current carrying metal parts of equipment together.
General Cable (AC Junction Box ÷ Distribution Panel)
L1 Black Line to neutral voltage 120VAC.
L2 Red Line to neutral voltage 120VAC.
L3 Blue Line to neutral voltage 120VAC.
L1-L2 - Line to line voltage 208VAC.
L2-L3 - Line to line voltage 208VAC.
L3-L1 - Line to line voltage 208VAC.
Neutral White Neutral wire.