65
TriStar MPPT Operator’s Manual
2% Voltage Drop Charts for 75°C Solid Copper Wire
1-Way Wire Distance (feet), 12 Volt System
Wire Size
(AWG)
60
Amps
55
Amps
50
Amps
45
Amps
40
Amps
35
Amps
30
Amps
25
Amps
20
Amps
15
Amps
2/0 **
27.8
30.3
33.4
37.1
41.7
47.7
55.6
66.7
83.4
111.2
1/0 **
22.0
24.1
26.5
29.4
33.1
37.8
44.1
52.9
66.1
88.2
2
13.9
15.1
16.6
18.5
20.8
23.8
27.7
33.3
41.6
55.4
4
8.7
9.5
10.5
11.6
13.1
14.9
17.4
20.9
26.2
34.9
6
5.5
6.0
6.6
7.3
8.2
9.4
11.0
13.2
16.5
21.9
8
3.4
3.8
4.1
4.6
5.2
5.9
6.9
8.3
10.3
13.8
10
2.2
2.4
2.6
2.9
3.3
3.7
4.3
5.2
6.5
8.7
12
1.4
1.5
1.6
1.8
2.0
2.3
2.7
3.3
4.1
5.5
14
0.9
0.9
1.0
1.1
1.3
1.5
1.7
2.1
2.6
3.4
Table 8-3. Maximum 1-way wire distance for 12 Volt systems, solid copper, 2% voltage drop
1-Way Wire Distance (meters), 12 Volt System
Wire Size
(mm
2
)
60
Amps
55
Amps
50
Amps
45
Amps
40
Amps
35
Amps
30
Amps
25
Amps
20
Amps
15
Amps
70 **
8.47
9.24
10.17
11.30
12.71
14.53
16.95
20.34
25.42
33.90
50 **
6.72
7.33
8.06
8.96
10.08
11.52
13.44
16.13
20.16
26.88
35
4.23
4.61
5.07
5.63
6.34
7.24
8.45
10.14
12.68
16.90
25
2.66
2.90
3.19
3.54
3.99
4.56
5.32
6.38
7.97
10.63
16
1.67
1.82
2.01
2.23
2.51
2.87
3.34
4.01
5.01
6.69
10
1.05
1.15
1.26
1.40
1.58
1.80
2.10
2.52
3.15
4.21
6
0.66
0.72
0.79
0.88
0.99
1.13
1.32
1.59
1.98
2.64
4
0.42
0.45
0.50
0.55
0.62
0.71
0.83
1.00
1.25
1.66
2.5
0.26
0.29
0.31
0.35
0.39
0.45
0.52
0.63
0.78
1.05
Table 8-4. Maximum 1-way wire distance for 12 Volt systems, solid copper, 2% voltage drop
** Wires sizes larger than 2 AWG (35 mm
2
) must be terminated at a splicer block located outside of the TriStar MPPT wiring box.
Use 2 AWG (35 mm
2
) or smaller wire to connect to the TriStar MPPT to the splicer block.
Notes:
• The speci
fi
ed wire length is for a pair of conductors from the solar or battery source to the
controller (1-way distance)
• For 24 volt systems, multiply the 1-way length in the table by 2.
• For 48 volt systems, multiply the 1-way length in the table by 4.
• Shaded cells in the table indicate that the current exceeds the ampacity of the wire for a
given ambient temperature as de
fi
ned in the following table:
Wire Ampacity* Key
Exceeds wire ampacity at 60°C ambient temperature
Exceeds wire ampacity at 50°C ambient temperature
Exceeds wire ampacity at 40°C ambient temperature
Exceeds wire ampacity at 30°C ambient temperature
*Ampacity for not more than three current-car-
rying conductors in a raceway, cable, or earth
(buried).
Содержание TriStar TS-MPPT-30
Страница 2: ...Dimensions in Inches Millimeters...
