Connection of inputs on the -SX / -SY models
For string connections using the DC
02
-SX /-SY wiring box, the quick
t input connectors (MPPT)
19
situated at the bottom of the mechanism
are used.
The quick t connectors are divided into 4 groups consisting of:
-SX Version. 3 or 4 pairs of quick t connectors according to the model of
the wiring box (12 or 16 total connections pairs).
-SY Version. 3 pairs of quick t connectors.
The maximum current for each group of inputs (3 or 4 strings depending on the version of the
DC wiring box) is 54A.
-SX (DC)
12 stringhe
23
22
10
19
09
15
31
14
23
22
10
19
09
15
31
14
-SY (DC)
23
22
10
19
09
15
31
14
-SX (DC)
16 stringhe
Connect all the strings required by the system, always checking the seal
of the connectors.
If any string inputs are not required, you must ensure that covers are
installed to the connectors, and install any which are missing.
This is necessary both for the inverter seal, and to avoid damage to the
free connector which may be used at a later time.
In these versions of the wiring box, is MANDATORY to directly connect the individual strings
coming into the inverter (do not make eld switchboards for parallel strings). This is because
the
10
positive side (+) and
22
negative side (-) string fuses, situated on each input, are not
rated to take strings in parallel (array). This operation can cause damage to the fuse and
consequently malfunctioning of the inverter.
IP65
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