39
EN-US
Wire cross sec-
tion of solar mod-
ule strings
Connecting solar
module strings
The DC Voltage must not exceed 600 V, re-
gardless of temperature.
WARNING! An electric shock can be fatal. Inadequately sized electrical compo-
nents can cause serious injuries to persons and damage to (or loss of) property.
- All electrical installations must be carried out in accordance with the National
Electrical Code, ANSI/NFPA 70, and any other codes and regulations appli-
cable to the installation site.
- For installations in Canada, the installations must be done in accordance with
applicable Canadian standards.
- Use minimum AWG 14, min. 167 °F (75 °C), copper wire for all grounding
wires (see NEC table 250.122).
- Use minimum AWG 14, min. 167 °F (75 °C), copper wire for the DC connec-
tion of the FRONIUS IG 2000, 3000 and 2500-LV.
- Use minimum AWG 14, min. 167 °F (75 °C), copper wire for the DC connec-
tion of the FRONIUS IG 4000, 5100 and 4500-LV
- Voltage drop and other considerations may dictate larger size wires be used.
- Use only solid or stranded wire. Do not use fine stranded wire.
NOTE! To ensure an effective strain relief device for solar module strings, only
use cable cross sections of the same size.
NOTE! Use only water tight conduit fittings and conduits. Conduit fittings and con-
duits are not part of the scope of supply for the inverter.
NOTE! Connecting the DC wiring
with the wrong polarity may cause
damage to the inverter. Check
both the polarity and the open cir-
cuit voltage.
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