General Remarks; Machine Concept; Mode Of Functioning; Inverter - Fronius DC Isolating Box 40/60 Bedienungsanleitung

General remarks

Machine concept

Fig.1
Mode of It can be used for pooling up to 8 solar-module strings at the input, and dividing them up
functioning into one DC+ and one DC- main lead each at the output.
In between the solar module (= input) and inverter (= output), there is a DC isolator with
a load-switching capability. The DC isolator makes it posssible to isolate the inverter so
that it is electrically dead. The DC isolator is suitable for a maximum open-circuit voltage
of 530 V DC.

Inverter

The DC isolating box 40/60 is specially designed for operation with the following
inverters:
-
-
-
These inverters have an integral overvoltage protector on the DC input side. There is no
need for any surge-voltage protectors in the DC isolating box 40/60.
DC isolating box 40/60 (open)
Fronius IG 15 / 20 / 30 / 40
Fronius IG 60 HV
Fronius SUNRISE
NOTE! It may well be dangerous to use other inverters, as these may not have
the integral overvoltage protection on the DC input side!
The DC isolating box 40/60 is designed to
be used in grid-connected photovoltaic
installations that have several strings of
solar modules. The isolating box isolates
the inverter so that it is electrically dead.
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