30
31
Figure 4-22
Figure 4-23
Model
STH-4KTL
-HT
STH-5KTL
-HT
STH-6KTL
-HT
STH-8KTL
-HT
STH-10KTL
-HT
STH-12KTL
-HT
Outside
diameter (mm)
12-18
12-18
12-18
12-18
12-18
12-18
Conductor core
section(mm²)
2.5-10
2.5-10
2.5-10
3.2-10
4-10
6-10
Breaker (A)
20
20
20
32
32
40
4.3.5.2 AC connector assembly procedures
The recommended AC cable and AC breaker for Sunways STH 4~12kW series three-phase
hybrid inverter are as shown in the following table:
1) According to the table above, select an appropriate AC cable, peel off the insulation sleeve
of AC cable for 40~60mm, and peel off the sleeve in the conductor core of 3L/PE/N wires for
8mm, as shown in Figure 4-22:
2) Insert the stripped AC cables through the AC connector cover in the sequence as shown in
Figure 4-23:
Strip Length:8mm
40-60mm
Wire Diameter:12-18mm
Cables
Screw cap The insulator AC sheet
cover
BACK-UP
ON-GRID
Single hole
seal ring
Figure 4-25
Figure 4-26
Figure 4-24
3) Put the cord end terminals on the stripped conductors one by one and press with some
pressure to make it tightly locked with the conductors, as shown in Figure 4-24:
4) Lock the well-pressed cord end terminals into the AC connectorin the accessory bag and
make sure the cables sequence is in line with the mark on the connector, as shown in Figure
4-25:
5) Insert the assembled AC connector to the corresponding AC port in the inverter, as shown in
Figure 4-26:
The cold-pressed terminals must be locked tightly, and make sure it won’t
be loose after a long period of use.
Caution
Please distinguish the on-grid and back-up port, and don’t mix up the
on-grid port and back-up port when making the connection.
Caution
BACK-UP
ON-GRID
