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EATON XSTORAGE COMPACT INSTALLATION MANUAL
P-164000907 - March 2022 www.eaton.com
00 Title
Figure 8 . Battery power options A, B and C
1. Eaton xStorage Compact 20 kW - 40 kW unit with
PCS electronics module
2. External battery rack
3. Master battery pack
4. Battery pack
The number of battery strings is determined by the energy capacity (kWh) requirements of the project.
Table 2 . Number of battery strings based on energy capacity
Battery technology
Number of strings / Battery power options
1
Option A
2
Option B
3
Option C
Nominal capacity (kWh)
GEN1 (2nd life)
21
42
63
GEN4
50
100
150
3.6 System controller and communication box
The system controller and its related components are physically placed in the communication box. The system
controller enables the communication and system monitoring.
The main components in the communication box are:
•
System controller unit (Eaton XC-303)
•
Relay output and I/O modules (Eaton XN322) that offer digital inputs for monitoring the breaker and relay status,
auxiliary relay outputs to activate battery pack wake-up signals, and circuit breaker tripping
•
Ethernet switch (Eaton PXE 6-port switch 10/100 Mb) that connects the xStorage system with the external
communication and management system
•
24 Vdc and 12 Vdc auxiliary power supplies to feed the system controller and the related components
•
Terminal blocks to ensure proper connections
