Fronius String Control 250/30 DCD DF User Manual
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Scope of supply
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1 Fronius String Control 250/30 DCD DF
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2 M40 metric screw joints with lock nuts
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22 M32 metric screw joints with lock nuts
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20 3-way 6 mm rubber inserts for M32 screw joint
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20 3-way 7 mm rubber inserts for M32 screw joint
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20 3-way 8 mm rubber inserts for M32 screw joint
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11 vent plugs for 3-way 6 mm rubber inserts
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10 vent plugs for 3-way 7 mm rubber inserts
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10 vent plugs for 3-way 8 mm rubber inserts
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10 dummy inserts for M32 screw joints
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1 M20 metric screw joint with lock nut
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2 M20 metric blank screw joint
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1 M25 metric screw joint with lock nut
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2 M40/M32 reducers
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1 rubber insert 2x6 mm
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1 silicone tube (pre-assembled for data communications cable)
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1 fire prevention leaflet
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1 upper mounting tab (incl. 5 screws)
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1 lower mounting tab (incl. 2 screws)
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these operating instructions
Option
If type 1 or 2 overvoltage protection is required, it can be fitted in the Fronius String Control
250/30 DCD DF on the DIN rail provided for this purpose.
Terms and abbre-
viations used
DC 'OUT' cable
The Fronius String Control 250/30 DCD DF DC output cable to
the inverter;
the polarity of the DC 'OUT' cables depends on how the solar
module strings are connected to the Fronius String Control 250/
30 DCD DF.
DC 'IN' cable
Solar module strings from the solar modules to the Fronius
String Control 250/30 DCD DF;
a solar module string consists of a DC+ cable and a DC- cable.