18
19
An AC breaker must be connected on the AC side of the inverter.
Any loads cannot be directly connected to the inverter.
Figure 4-9
+
-
Crimping Plier
Open-end Wrench
Figure 4-10
1.Before assembling the DC connector, make sure that the cable polarity is
correct.
2.Use a multimeter to measure the voltage of the DC input string, verify the
polarity of the DC input cable, and ensure that each string voltage is within
500V.
Figure 4-11
3) Disassemble the connector in the accessory bag, as shown in Figure 4-9:
4) Insert the DC cable through the DC connector nut into the metal terminal and press the
terminal with a professional crimping plier (pull back the cable with some power to check it’s
tight enough or not), as shown in Figure 4-10:
5) Insert the positive and negative cables into the corresponding positive and negative
connectors, pull back the DC cable to ensure that the terminal is tightly attached in the
connector.
6) Use an open-end wrench to screw the nut to the end to ensure that the terminal is well
sealed, as shown in Figure 4-11:
Warning
Figure 4-12
Figure 4-13
Model
STS-1KTL-S STS-1.5KTL-S STS-2KTL-S STS-2.5KTL-S STS-3KTL-S STS-3.3KTL-S
Cable
2.5mm
2
2.5mm
2
2.5mm
2
4mm
2
4mm
2
4mm
2
Breaker
6A
10A
16A
16A
20A
20A
7) Insert the positive and negative connectors into the inverter DC input terminals respectively,
and when you hear the "click" sound represents the assembly in place, as shown in Figure 4 -12:
4.3.2 Connection of AC output
The Sunways 1~3.3kW-S series single phase inverter applies to the single-phase power grid
with a voltage of 220/230V and a frequency of 50/60Hz.
The recommended cable and AC breaker for the Sunways STS 1~3.3kW-S series single phase
inverter are shown in the following table:
4.3.2.1 AC connector connection steps
1) Take the AC connector out of the accessory bag and disassemble it, as shown in Figure 4-13:
Cable Gland
Threaded Sleeve
AC Terminal Head
Warning