S Series User Manual www.fox-ess.com P a g e | 11
5.6 Wiring Steps
Step 1: PV String Connection
S series inverters can be connected with 1-string of PV modules. Please select suitable PV modules with high
reliability and quality. Open circuit voltage of module array connected should be less than 550V, and operating
voltage should be within the MPPT voltage range.
Note!
Please choose a suitable external DC switch if the inverter does not have a built-in
DC switch.
Warning!
PV module voltage is very high and within a dangerous voltage range, please comply
with the electric safety rules when connecting.
Warning!
Please do not make PV positive or negative to ground！
Note!
PV modules – please ensure they are the same type, have the same output and
specifications, are aligned identically, and are tilted to the same angle. In order to save
cable and reduce DC loss, we recommend installing the inverter as near to the PV modules
as possible
Step 2: DC Wiring
➢ Turn off the DC switch.
➢ Choose 12 AWG wire to connect the PV module.
➢ Trim 6mm of insulation from the wire end.
➢ Separate the DC connector as below.
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