Connecting Dc Input Power Cables - Huawei SUN2000-(25KTL, 30KTL)-US User Manual

SUN2000-(25KTL, 30KTL)-US
User Manual
(3) Neutral wire not connected, PE wire
connected
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5.5 Connecting DC Input Power Cables

Connect the SUN2000 to PV strings over DC input power cables.
Prerequisites
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To avoid fire, ensure that the following conditions are met.
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Issue 03 (2017-04-01)
Before connecting DC input power cables, ensure that the voltage on the DC side is within
the safe range (lower than 60 V DC) and that the DC SWITCH on the SUN2000 is OFF.
Otherwise, high voltage may result in electric shock.
When the SUN2000 is grid-tied, do not maintain DC input power cables, such as
connecting or disconnecting a PV string or a PV module in a PV string. Otherwise, it may
result in electric shocks.
The maximum open-circuit voltage of each PV string must be always lower than or equal
to 1000 V DC.
The positive and negative terminals of PV modules must be connected to the positive and
negative DC input terminals of the SUN2000 respectively.
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5 Electrical Connections
connected
(4) Neutral wire and PE wire connected
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