36
solar module are decisive factors in the protection of the solar module.
The maximum short circuit current I
SC
per terminal is 15 A.
The string fuse release current can be set to greater than 15 A if required. However, a re-
lease current of 20 A must not be exceeded.
If the inverter is being operated with an external string collection box, the DC connector kit
25 (item numbers 42,0201,4479 for DC+ and 42,0201,4480 for DC-) must be used. In this
case the solar modules are externally protected in the string collection box and the metal
bolts should be used in the inverter.
National regulations regarding fuse protection must be observed. The electrical engineer
carrying out the installation is responsible for the correct choice of string fuses.
CAUTION!
Danger due to faulty fuses.
This can result in fire.
► Only replace faulty fuses with new ones of the same rating.
The inverter is delivered with metal bolts as standard.
Permitted Cables AC cables with the following design can be connected to the AC terminals of the inverter:
Option DC SPD
DC+ 2.1
DC+ 1.1
DC+ 1.3
DC+ 1.2
DC+ 2.3
DC+ 2.2
DC- 1.2
DC- 1.1
DC- 1.3
DC- 2.1
DC- 2.2
DC- 2.3
Do not remove cover!
Each Terminal: I
max
= 15 A
- Copper (Cu) or aluminum (Al): round, solid
- Copper: round, stranded, up to conductor class 4
Cu / Al Cu
AC & DC = copper cables (Cu)
The following wire combinations can be used for wiring.
Select a sufficiently large cable cross-section based on the actual device output!
AWG
round
AWG
strand
ed
AWG
stranded/round
AWG
round/round
AWG
stranded/stranded
4
2)
6
2)
6/6
4)
6/12
2)
6/14
2)
6/16
3)
8
2)
8
1)
8/10
1)
8/12
1)
8/14
1)
8/12
2)
8/10
2)
8/12
1)
8/14
1)
8/16
3)
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