Cu: min. AWG 14 – max. AWG 6
Al: AWG 6
Cu: min. AWG 14 – max. AWG 2
Al: AWG 6
DC =
Cu: min. AWG 14 - max. AWG 6
Al: AWG 6
Cu / Al: min. AWG 4 - max. AWG 2
(with optional connection distribut-
or)
AC ~
Cu: min. AWG 10 - max. AWG 2;
AWG 6 - AWG 2 (for single-wire
cable or stranded wires)
Multifunctional power interface:
AWG12
Terminal tightening torque:
Terminal tightening torque:
16 lbf.in / 1.33 t. lb. /1.8 Nm AC ~
31 lbf.in / 2.58 ft. lb. / 3.5 Nm
DC =
16 lbf.in / 1.33 ft. lb. /1.8 Nm
Preparing Alu-
minum Cables
for Connection
The AC-side terminals are designed for connecting single-wire, round aluminum
cables. Due to the reaction of aluminum with air that creates a tough, non-con-
ductive oxide layer the following points must be considered when connecting alu-
minum cables:
-
Reduced rated currents for aluminum cables
-
The connection requirements listed below
Always follow the instructions of the cable manufacturer when using aluminum
cables.
Take into account local specifications when configuring cable cross sections.
Connection Requirements:
1
Carefully clean off the oxide layer of the stripped end of the cable, 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 grease, e.g.,
acid-free and alkali-free Vaseline
3
Then immediately connect it to the terminal
IMPORTANT!Repeat the steps above whenever the cable is disconnected and
then reconnected.
Monitoring the
grid
The resistance in the leads to the AC-side connection terminals must be as low
as possible for optimal functioning of grid monitoring.
27
EN-US
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