NOTE:
1. Determine the stripped length according to the wiring position (recommendation: 22-26 mm for
power cables and 22-26 mm for ground cables). Remove the protective plugs and install the cable
conduits correctly. Then route the cables through the holes at the bottom of the AC junction box,
referring to Fig 6.4. After that, connect the cables to the corresponding terminals and secure them
with American standard threads.
Fig 6.3 Crimping a cable
2. WIT 50-100K-AE-US, WIT 50-100K-HE-US, WIT 50-100K-AU-US and WIT
50-100K-HU-US models differ from WIT 50-100K-A-US and WIT 50-100K-H-US models with
an additional type of terminal in the AC junction box. Therefore, please connect cables according
to the label.
Fig 6.4 AC junction box
6.3 Connection on the PV Side
● Only WIT 50-100K-H-US, WIT 50-100K-HE-US and WIT 50-100K-HU-US
models need to be connected on the PV side.
● Before connecting cables, ensure that the DC switches of the WIT Inverter are
OFF, and turn off the breakers on the AC side and the battery side. Otherwise, the
high voltages of the WIT Inverter may cause electric shocks.
● Only qualified and trained electrical technicians are allowed to perform
operations. Technicians must observe instructions in this manual and local
regulations.
● Check the positive and negative terminals before connecting the PV module to the
WIT Inverter.
● High voltages may cause electric shocks and serious injury. Please do not touch
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