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JUNCTION BOX, MICROINVERTER
AND TERMINALS
Modules equipped with one junc-
tion box contain terminals for both
positive and negative polarity, and
bypass diodes.
Each terminal is dedicated to one
polarity (with the polarity symbols
engraved onto the body of the junc-
tion box) . See Figure 2-1.
A microinverter has an input / out-
put terminal. See Figure 2-2.
Each terminal is provided with facto-
ry installed lead cables and a latch-
Negative ( - )
Positive ( + )
Figure 2-1. Junction Box
ing connector. Always use these
connectors and do not detach them
from cables.
The PV module and a microinverter
come pre-wired. Each module has
two #12 AWG type PV-wire stranded
sunlight resistant output cables each
terminated with connectors. The
positive (+) terminal has a male
connector while the negative (-)
terminal has a female connector.
Latching connectors are type IV and
supplied by STAUBLI ELECTRICAL
CONNECTORS AG, which are listed
by UL.
Top view
Side view
Output terminal
Figure 2-2. Output / input terminal of a Microinverter
6
Input terminal
Enlarged view of
output terminals
Enlarged view of
input terminals
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