Fronius String Control 250/25 DCD DF - Manual (Page 63)

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EN-US
Abbreviations
and Descripti-
ons Used DC cable ‘OUT’ DC output cable from Fronius String Control 250/25
DCD DF to inverter.
The polarity of the ‘OUT’ DC cable results from the
connection specification of the ‘IN’ DC cable.
DC cable ‘IN’ Solar module strings from the solar modules to the
Fronius String Control 250/25 DCD DF.
Each solar module string has one DC+ cable and one
DC- cable.
Max. input voltage in no-load operation 600 V
Max. input current 250 A
Max. input current per fuse holder 20 A
Max. number of strings (with integrated solar module fuse) 25
Max. cable cross section for terminals on the 1 - 25 mm²
solar module side for rigid wires
Max. cable cross section for terminals on the 1 - 16 mm²
solar module side for flexible wires
Important ! For a wire cross section smaller than 2.5 mm², use wire ferru-
les.
Max. cable diameter of ‘IN’ DC cable 7 mm
Min. cable diameter of ‘IN’ DC cable 2 mm
Max. cable cross section for the M12 connections on the 120 mm²
inverter side
Number of measuring channels 5
Max. current per measuring channel 50 A
Screw joint for cable attachment to the solar module side M16
Screw joint for cable attachment to the inverter side M40 / M32
Protection type IP 55
Protection class II
Ambient conditions -25°C - +55°C
-13°F - +131°F
Dimensions (without screw joints) 754 x 571 x 216 mm
29.69 x 22.48 x 8.50 in.
DATCOM power supply via Solar Net
optional via a 12 V power supply
Max. Solar Net current consumption 110 mA
Weight 18,4 kg
Technical Data