SMA WINDY BOY 3300 - Connecting the Small Wind Turbine System (DC); Conditions for DC Connection

Electrical Connection SMA Solar Technology AG
30 WB33-38-IA-IEN120940 Installation Manual
5.5 Connecting the Small Wind Turbine System (DC)
5.5.1 Conditions for DC connection
• The connection cables of the small wind turbine system must be fitted with connectors.
The DC connectors for the DC connection are included in the delivery.
• The following limit values must not be exceeded at the DC input of the inverter:
Maximum input voltage Maximum input current
500 V 20 A
DANGER!
Risk of lethal electric shock or fire
The maximum possible input current is limited by the connectors used. If the connectors are
overloaded, an electric arc may occur, thus causing a fire risk.
• Ensure that the input current does not exceed the maximum through-fault current of
the connectors used.
NOTICE!
Destruction of the inverter due to overvoltage
If the voltage of the small wind turbine system exceeds the maximum input voltage of the
inverter, the inverter can be destroyed by overvoltage. This will void all warranty claims.
• Install overvoltage protection, e.g. Windy Boy Protection Box, between the small
wind turbine system and the inverter.