Connection of inputs on the S2F / S2X model
For string connections using the S2F / S2X wiring box, the quick t con-
nectors (multicontact or weidmuller) situated at the bottom of the mecha-
nism are used.
For each input channel, there are two groups of connectors:
• Input connectors (MPPT1)
19
with codes 1A, 1B, 1C, ...
• Input connectors (MPPT2)
20
with codes 2A, 2B, 2C, ...
Connect all the strings included in the design of the system and always
check the tightness of the connectors.
The number of connections for each input channel varies according to
the inverter power size:
TRIO-20.0 - 4 pairs of connectors for each output channel
TRIO-27.6 - 5 pairs of connectors for each output channel
If some string inputs are not used, check that there are covers on the
connectors and install them if they are missing.
This operation is necessary for the tightness of the inverter and to avoid
damaging the free connector that could be used at a later date.
In these versions of the wiring box, you MUST directly connect the individual strings com-
ing into the inverter (do not make eld switchboards for parallel strings). This is because the
string fuses
22
, situated on each input, are not sized to take strings in parallel (array). This
operation can cause damage to the fuse and consequently malfunctioning of the inverter.
2B 2D2C
IN2
2E
-
+
1A
1E
IN1
1B 1C 1D
-
- - -
+
+
- -
++ +
2A
-
+ +
2B 2D2C
IN2
1A
IN1
1B 1C 1D
- - -
+
- -
++ +
2A
-
+ +
09 15 13 12 18
10 14 17 16
10 19 20 14 16 21
10 19 20 14 16 21
22
IP65
TRIO-20.0kW (S2F/S2X)
TRIO-27.6kW (S2F/S2X)