5.1 5.1 Terminal connectorTerminal connector
NoNo LabelLabel DescriptionDescription
AA PV1...20 (+/-) PV array connection
BB WIFI USB Firmware update or Stick Logger connection
CC RS485/DRMs RS485 network for external data logger or PV Park
controller / remote power control and shut down
DD AC grid connection
EE Connecting terminal of the ground, choose at least
one for grounding connection
5.2 5.2 Connect grounding PE cableConnect grounding PE cable
NOTICE NOTICE
Damage of the inverter due to not permissible pole groundingDamage of the inverter due to not permissible pole grounding
inverter failure due to grounding the plus and minus polesinverter failure due to grounding the plus and minus poles
▶
SOFAR 100...125KTLX-G4 is a transformerless inverter which requires the positive
pole and negative pole of the PV array are NOT grounded.
▶
In the PV system, all non-current-carrying metal parts (such as mounting frame,
combiner box enclosure, etc.) must be connected to ground.
Installation and User Manual 29/78
Electrical Connections