Figure 3-31: DC Wiring illustration
PV-KST 4/6 Ⅱ
PV-KBT 4/6 Ⅱ
3.4.3 DC Wiring Installation for M80/60U_122 models
122 models use bulkhead mounted MC4 type connectors for interconnecting
string wiring to the inverter. Mating connectors (See Figure 3-31) are provided
within the hardware bag.
• Choose the DC string wire size based on NEC requirements
• The cross-sectional area for each internal cable is 12~10 AWG (4~6mm²).
DC wiring polarities are divided into positive and negative, and the layout
between the connectors and associated internal fuses is shown in Figure 3-32.
The Tigo RSS Transmitter has a range limit. The entire DC loop for each string,
from the positive terminal on the inverter, out through the array, to the negative
terminal on the inverter, should be less than 1000 feet (300 meters). Please go
to Tigoenergy website for more details.
PV Array
M80U_121 (With RSD)
53
Installation
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