Electrical Connection SMA Solar Technology AG
32 SMC9-11TLRP-IEN100640 Installation Guide
5.5 Connection of the PV Generator (DC)
5.5.1 Conditions for the DC Connection
• Requirements for the PV modules of the connected strings:
– Same type
–Same number
– Identical alignment
– Identical tilt
• The connecting cables from the PV modules must be fitted with plug connectors. You will find
the necessary DC plug connector for DC connection in the delivery.
• The following limit values at the DC input of the inverter may not be exceeded:
Use of Adaptors
Adaptors (branch connectors) are not to be visible or freely accessible in the immediate
surroundings of the inverter.
• The DC current flow may not be interrupted via adaptors.
• Observe the procedure for disconnecting the inverter as described in section
7.2”Opening the Inverter” (page56).
Inverter Maximum input
voltage
Maximum input
current
SMC 9000TL-10 / SMC 9000TLRP-10 700 V (DC) 28.0 A (DC)
SMC 10000TL-10 / SMC 10000TLRP-10 700 V (DC) 31.0 A (DC)
SMC 11000TL-10 / SMC 11000TLRP-10 700 V (DC) 34.0 A (DC)
DANGER!
Risk of lethal electric shock or fire!
The maximum possible input current per string is limited by the plug connectors used. If the
plug connector is overloaded, an electric arc may occur and there is a fire risk.
• Ensure that the input current for each string does not exceed the maximum flow
current of the plug connectors used.
The residual current breaker
The inverter is equipped with an integrated universal current sensitive residual-current
monitoring unit. The inverter can automatically differ between real fault currents and
"normal" capacitive leakage currents.
If an external RCD or residual current breaker is strictly required, you must use a switch that
triggers at a failure current of 100 mA or higher.
To Next Page
Loading...
