Electrical Connection
09
4. Electrical Connection
HNS7000TL and HNS8000TL inverters have dual MPPT channels, channel A
includes 1 PV string input, and channel B includes 2 PV string inputs. For the best
results, please ensure that each pair of photovoltaic input terminals is connected
to a photovoltaic string separately. Otherwise, the inverter will trigger the voltage
or current protection automatically. Please make sure below requirements are
followed:
• The open-circuit voltage and short-circuit current of PV string should not exceed
the reasonable range of the inverters.
• The isolation resistance between PV string and ground must exceed 10 kΩ.
• The polarity of PV strings are correct.
• Use the DC plugs in the accessory.
• The lightning protector should be equipped between PV string and inverter.
• Disconnect all of the PV (DC) switch during wiring.
4.1 PV Connection
Warning:
The fatal high voltage may on the DC side, please comply with
electric safety when connecting.
Please make sure the cable connected in correct polarity with
inverter, otherwise inverter could be damaged.
Step 3
Security screw
