INSTALLATION - INVERTER
43
AC CABLE SIZING TABLE
Inverter AC cabling must be sized and installed in accordance with AS/NZS 3000, AS/NZS 3008 and any
local applicable codes. Cables selected must have an appropriate current carrying capacity for the maximum
fault current output of the inverter, and the Inverter AC isolator, taking into consideration relevant de-rating
factors. For the nominal trip current of the AC breaker, refer to the “Wiring Diagrams” beginning on page 8.
Inverter
Model
Maximum AC
Fault Current (A)
SB 1.5-1 VL-40
12.0
UNO-2.0-I-OUTD
20.0
SB 2.5-1 VL-40
19.0
PVI-3.0-TL-OUTD
25.0
SB3000TL-21
34.0
SB4000TL-21
34.0
PVI-4.2-TL-OUTD
25.0
PVI-5000-TL-OUTD
40.0
SB5000TL-21
34.0
Inverter AC cabling must have a voltage drop or rise less than 1% in accordance with AS/NZS 5033. For
common PVC/PVC cable types operating at 75°C on a 230 V single-phase circuit, the following table
provides for a voltage variation of less than 1%.
Inverter Model
Conductor cross section
2.5 mm
2
4.0 mm
2
6.0 mm
2
10.0 mm
2
16.0 mm
2
Maximum cable length (m)
SB 1.5-1 VL-40
18.3
29.3
N/A
N/A
N/A
SB1600TL-10
18.3
N/A
N/A
N/A
N/A
UNO-2.0-I-OUTD
Refer Power-One/ABB Quick Installation Guide
SB 2.5-1 VL-40
11.6
18.6
N/A
N/A
N/A
PVI-3.0-TL-OUTD
Refer Power-One/ABB Quick Installation Guide
SB3000TL-21
9.8
15.8
23.5
39.6
N/A
SB4000TL-21
7.4
11.8
17.6
29.6
N/A
PVI-4.2-TL-OUTD
Refer Power-One/ABB Quick Installation Guide
PVI-5000-TL-OUTD
Refer Power-One/ABB Quick Installation Guide
SB5000TL-21
6.4
10.3
15.3
25.8
N/A
Note:
If the installation requires different cabling or has installation conditions different to those specified
above, the installer must undertake appropriate calculations to ensure the cabling is correctly sized.
