Fronius String Input Combiner Pair with #4 Lugs Features

Connecting combined Solar Modules Strings using a DC String Input Combiner¹

General

When more solar modules strings are combined to one solar module string prior to the inverter, the solar modules string current may exceed the permissable DC input terminal current ration of 20 A.

In this case the DC cable can be connected to the Fronius IG Plus using a string input combiner as an option.

Additional Required Components

The following additional components are required for connecting combinerd solar module strings using a DC string input combiner.

• 2 string input combiners (available from Fronius as an option).
• Cable lugs (Select cable lugs that match the available DC cables.)
• Hexagon screws matching the cable lugs
• Hexagon Nuts matching the cable lugs