Fronius Symo 15.0-3 208 - Solar Module Selection Guidance

1)
tested and inspected as per UL
2)
not inspected as per UL; connection possible
3)
with ferrules only
4)
use stranded PV (ZKLA) or 2-wire
5)
not inspected as per UL; connection possible; AWG 16 with ferrules only
Minimum AWG as per NEC
10.0-3 208-240 12.0-3 208-240
15.0-3 208
Copper (Cu)/aluminum
(Al)
208 V
A
C
AWG 10/AWG 10 AWG 10/AWG 8
AWG 8/AWG 6
220 V
A
C
AWG 10/AWG 10 AWG 10/AWG 8
240 V
A
C
AWG 12/AWG 10 AWG 10/AWG 10
10.0-3 480 12.5-3 480 15.0-3 480
Copper (Cu)/aluminum
(Al)
440 V
AC
AWG 14/AWG 12 AWG 14/AWG 12 AWG 14/AWG 12
480 V
AC
AWG 14/AWG 12 AWG 14/AWG 12 AWG 14/AWG 12
17.5-3 480 20.0-3 480 22.7-3 480
Copper (Cu)/aluminum
(Al)
440 V
AC
AWG 12/AWG 10 AWG 10/AWG 10 AWG 10/AWG 8
480 V
AC
AWG 14/AWG 12 AWG 12/AWG 10 AWG 10/AWG 10
24.0-3 480
Copper (Cu)/aluminum
(Al)
480 V
AC
AWG 10/AWG 10
General Inform-
ation about Solar
Modules
In order to select suitable solar modules, observe the following points:
-
The open circuit voltage of the solar modules increases as the temperature
decreases, assuming constant irradiance. The open circuit voltage may not
exceed the following values, depending on the altitude:
Symo 10.0-3 – 12.0-3 208–240
0 to 11,154 ft. (0 to 3400 m) = 600 V
Symo 10.0-3 – 24.0-3 480
0 to 6561 ft. (0 to 2000 m) = 1000 V
6531 to 8202 ft. (2000 to 2500 m) = 950 V
8202 to 9842 ft. (2500 to 3000 m) = 900 V
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