Product Introduction; Basic Features - Sunways STT-4K User Manual

2.4.3 Symbol on the Packing box
Symbol
Handle with care.
This side up.
Keep dry.
Stacked layers.
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Description

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.
TN-S
Transformer Transformer
Sunways
STT Series
TT
Transformer
Sunways
STT Series
Figure 3-1 Applicable grid type
TN-C TN-C-S
Transformer
Sunways Sunways
STT Series STT Series
IT
Transformer
Sunways
STT Series
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