8
9
Handle with care.
Description
Symbol
This side up.
Keep dry.
Stacked layers.
2.4.3 Symbol on the Packing box
Sunways
STT Series
Sunways
STT Series
Sunways
STT Series
Sunways
STT Series
Sunways
STT Series
IT
TT
TN-C-S
TN-S
TN-C
3. Product Introduction
3.1 Basic Features
3.1.1 Function
The Sunways STT 4~25kW series is a three-phase grid-connected PV inverter which used to
efficiently convert the DC power generated by the PV string into AC power and feed it into the
grid.
3.1.2 The STT 4~25kW series inverter contains 10 models which are listed below:
STT-4KTL, STT-5KTL, STT-6KTL, STT-8KTL, STT-10KTL, STT-12KTL, STT-15KTL, STT-17KTL,
STT-20KTL, STT-25KTL
3.1.3 Applicable grid type
The applicable grid types for the Sunways STT 4~25kW series are TN-S, TN-C, TN-C-S, IT and
TT. When applied to the TT grid, the voltage of N to PE should be less than 30V. See Figure 3-1
for details:
3.1.4 Storage conditions
1) Inverter must be stored in its original packaging.
2) The storage temperature should be in the range of -30 ° C and + 60 ° C , and the relative
humidity stored is less than 90%.
3) If a batch of inverters needs to be stored, the height of each pile should be no more
than 6 levels.
Transformer
Transformer
Transformer
Transformer
Transformer
Figure 3-1 Applicable grid type
