© 2021 by XOLTA
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3.3.2.6 Power components minimum rating
Table 3.2:
Power components
minimum rating
3.3.2.7 Recommended cable cross sections
The cables connecting the switch and fuse cabinet to the XOLTA outdoor BESS unit rack must
comply with the specifications in Table 3.3.
Table 3.3:
Recommended cable
cross sections
3.3.2.8 Lightning protection
The XOLTA outdoor BESS is equipped with protective earthing (SAG 16mm
2
DIN Terminal
where the earth wire must be connected. The XOLTA rack is internally grounded with 10mm
2
wire. The grounding resistance should follow local regulations.
3.4 System operation
The XOLTA outdoor BESS is intended to be operated from the XOLTA Cloud or via the Web API. System
operation is described in Chapter 5. Different operation modes and operation states of the XOLTA system
are described in Chapter 4.
Additionally, the operational state can be monitored by means of multicolored LED indicators that are located
at the top. The color codes of the LED indicators provide information about current operational state of the
XOLTA outdoor BESS. Details are provided in Table 3.4.
3.5 Maintenance requirements
WARNING:
Even a de-energized XOLTA outdoor BESS can cause injury or even death if operated by
unauthorized persons.
All maintenance must therefore be undertaken only by authorized personnel.
COMPONENT
VOLTAGE RATING
POWER/CURRENT RATING
Protection contractor
3 X 400 VAC
>45 A
Protection
contractor coil
1 x 240 VAC
<20 W
Protection
contractor SW*
240 VAC
>2.5 A
Controller fuse*
240 VAC
>2.5 A
Inverter main SW*
3 X 400 VAC
>45A
Inverter fuses*
3 X 400 VAC
>45A
CABLE
USE
CABLE CROSS
SECTION
VOLTAGE RATING
Controller power
L, N, PE to controller
3x1.5mm
2
750 V
Inverter power
L1, L2, L3, PE to
inverter
4x16mm
2
750 V
Rack earthing
(lightning protection)
1x16mm
2
Follow local
regulations
*Alternatively, a combined Switch/Automatic fuse with corresponding rating can be used
