Alpha ESS SMILE-S6-HV Installation Manual page 23

ELECTRICAL CONNECTION
7.4.2 Grid and Backup Connection
There are two AC terminal blocks for grid and backup connection which have the same
installation steps.
We recommend the following cable requirements for AC connection.
Description
Cable diameter range for grid cable gland
Cable diameter range for backup cable gland
Copper conductor cross section area range
Stripping length of the insulated conductors
1.Take out the cord end terminals and AC&COM connection cover provided by the
inverter.
2. Lead the AC cable through the cable gland of the cover, don' t tighten
the pressure cap of the cable gland. Grid cable must pass through magnetic ring which
is provided as inverter accessory.
3. Dismantle the AC cable by 80mm, and strip the insulation of L, N and PE conductors by
10mm.
Value
9~21 mm
9~16 mm
4~6 mm
2
10~12 mm
Installation method of AC cable via cable gland.
If the outer diameter of the cable is thicker,
remove the inner sealing ring from the cable
gland.
80mm
8mm-10mm
PE Yellow/Green
N Black
L Red
40 41
4. Insert the stripped part of the conductors into the cord end terminals and crimp them
using a crimping tool.
5. Insert the terminals with different color conductors to the holes of the respective
polarity and tighten them one by one by using the torque of 2 Nm with tool of cross
recessed screwdriver.
6. Fix the AC connection cover tightly on the inverter and tighten the pressure caps of the
two cable glands.
ELECTRICAL CONNECTION
L1
PE
N
L
L2=L1+3mm
M4
T20
2· N · M