SMA STP 8000TL-10 - Manual (Page 40)

6 Electrical Connection SMA Solar Technology AG
40 STP8-17TL-IA-en-31 Installation Manual
6.4.4 Connecting the PV Array (DC)
Danger to life due to high voltages in the inverter
• Before connecting the PV array, ensure that the AC miniature circuit-breaker is switched off for
all 3 phases.
Risk of electric arc if the DC connectors are pulled out while the Sunny Tripower is
beeping
The integrated electronic string fuse monitors the PV array. In case of incorrect installation
(e.g. reverse polarity) or a faulty string, the electronic string fuse short-circuits the PV array and the
Sunny Tripower starts to beep.
• Do NOT pull the DC connector out as this could trip an electric arc.
• Do NOT pull out the Electronic Solar Switch as otherwise the entire reverse current will flow
through the defective string which could result in a fire.
• Further procedure (see Section 12.1 "Sunny Tripower is Beeping", page 84).
Destruction of the inverter due to overvoltage
If the voltage of the PV modules exceeds the maximum input voltage of the inverter, it could be
destroyed by overvoltage. This will void all warranty claims.
• Do not connect any strings to the inverter which have an open-circuit voltage greater than the
maximum input voltage of the inverter.
• Check the plant design.
Excessive voltages can destroy the multimeter
• Only use multimeters with a DC input voltage range up to at least 1,000 V.