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XSTORAGE HOME 3P INSTALLATION MANUAL
MN700009EN August 2020 www.eaton.com
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The installation must be carried out only by Eaton certified installers.
WARNING:
Local regulations in force in the country of installation may require the installation of an external
additional DC disconnector for the PV input lines and an external additional DC breaker switch for the
positive and negative lines of the battery. Both devices must be rated according to the maximum voltage
and current values specified in the technical data specifications of the xStorage Home 3P.
Refer to Figure 3 to identify the connection terminals of the xStorage Home 3P inverter.
Refer to Figure 4 for the electrical connection diagram of the xStorage Home 3P inverter.
The DC disconnector of the PV input lines is integrated. The disconnector of the battery lines is also
integrated and automatic. It is normally managed by the system control, but it can be voluntarily controlled
by turning the ON/OFF switch to the “0” position in cases of maintenance/malfunction which require
disconnection of the battery from the system.
The xStorage Home 3P system is equipped with a Residual Current Monitoring Unit compliant with the
requirements of the IEC / EN 62109-2: 2011 safety standard (refer to specific section of Standards). The
system is equipped with a redundancy on the earth leakage current sensitive to all components of the current,
both direct and alternating. The measurement is carried out simultaneously by two different processes: it is
enough that only one of the two detects a fault to disconnect the converter from the network.
It must be noted that the device integrated in the converter protects the system against the faults only
occurring upstream of the inverter AC terminals (i.e. from the inverter to the photovoltaic modules). The
leakage currents that can occur in the AC section between the PCC (Point of Common Coupling) and the
xStorage Home 3P are not detected.
If, in compliance with local regulations or specific cases, the use of
an external RCD is necessary, it is recommended to use a type A protection RCD with a fault current
of at least 100 mA.
Eaton declares that the construction of the xStorage Home 3P does not produce direct earth fault
currents and therefore, in accordance with article 712.413.1.1.1.2 of section 712 of the Standard CEI
64-8/7 standard, a type B RCD, according to IEC 60755/A2 standard, is not required.
Connect only one xStorage Home 3P system for each load circuit breaker.
A threaded plug fuse cannot be used as a load circuit breaker.
For safety reasons, an appropriately rated input load disconnector (20 A) must be provided for each individual
xStorage Home 3P system. No load should be connected directly to the xStorage Home 3P inverter.
6.1 Cautions
6. Electrical connections
