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DC-Terminals
DC+
DC-
DC+ and DC- terminals on the Fronius IG
Plus
The DC side terminals are designed for connecting single-wire,
round and sector-pattern aluminum cables.
The following points must be taken into account when connecting alumi-
num cables due to the non-conducting oxide layer of aluminum:
- The reduced rated currents for aluminum cables
- The connection requirements listed in the following
Reduced rated currents for aluminum cables:
Rated cross section Reduced rated current
2.5 mm² 20 A
4 mm² 27 A
6 mm² 35 A
10 mm² 48 A
16 mm² 64 A
Connection requirements:
1. Carefully clean off the oxide layer of the stripped cable end, e.g. using
a knife
Important Do not use brushes, files or sandpaper. Aluminum particles
may get stuck and can transfer to other cables.
2. After removing the oxide layer of the cable end, rub in a neutral fat,
e.g. acid and alkali-free Vaseline
3. Then immediately connect to the terminal
Repeat the steps above whenever the cable is disconnected and then
reconnected.
Connecting
Aluminum
Cables
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