BENSHAW RSi H2 Series - Cable Selection

14
Preparing the Installation
890053-00-02
1.5 Cable Selection
Use cables that meet the required specification for the safe and reliable operation of the product. Refer to
NEC Articles 430.2 and 430.6 along with Table 310-16 for selecting the correct wire sizing. Some local codes
may take precedence over the NEC. Refer to the following information to assist you with cable selection.
Ground Cable and Power Cable Specifications
Voltage
kW
HP
Ground Wire
Input/Output Power Wire
mm
2
AWG
mm
2
AWG
R/S/T
U/V/W
R/S/T
U/V/W
240V
5.5
7.5
10
10
4
4
12
12
7.5
10
6
6
10
10
11
15
10
10
8
8
15
20
14
6
16
16
6
6
18.5
25
25
22
4
4
22
30
25
4
25
30
40
50
50
1/0
1/0
37
50
38
2
70
70
45
60
55
75
50x2
1x2
70x2
70x2
1/0x2
300
1/0x2
300
75
100
95x2
95x2
2/0x2
400
2/0x2
400
90
125
50x2
70x2
1/0x2
4/0x2
4/0x2
Voltage
kW
HP
Ground Wire
Input/Output Power Wire
mm
2
AWG
mm
2
AWG
R/S/T
U/V/W
R/S/T
U/V/W
480V
5.5
7.5
4
12
2.5
2.5
14
14
7.5
10
4
2.5
12
14
11
15
4
4
12
12
15
20
16
8
6
6
10
10
18.5
25
16
10
6
8
22
30
14
6
16
10
6
8
30
40
25
16
4
6
37
50
25
4
25
25
4
4
45
60
25
25
4
4
55
75
50
50
1/0
1/0
75
100
38
2
70
70
1/0
1/0
90
125
70
70
1/0
1/0
Wherever possible, use cables with the largest cross-sectional area for mains power wiring to
ensure that voltage drop does not exceed 2%.
Use copper cables rated for 600 V, 75⁰ for power terminal wiring.
Use copper cables rated for 300 V, 75⁰ for control terminal wiring.
The inverters must be grounded with fixed connections.
The minimum size of the protective ground conductor shall comply with the local safety
regulations for high protective grounding.