SMA SUNNY ISLAND 8.0H Installation Manual page 71

SMA Solar Technology AG
Checklist for Additional Earthing
If the battery is earthed, you must check the additional earthing on the off-grid inverter.
Check item
Conductor cross-section for
the additional earthing
Additional earthing terminal
PE connection to earth
Checklist for DC Connection of the Off-Grid Inverter
Check item
Enclosure opening for DC
DC connection
DC cables
BatFuse
DC sources and DC loads, if
present
Installation Manual
Check criterion
The conductor cross-section must correspond
to the conductor cross-section of the battery
earthing.
Hexagon socket screw is screwed tight
(torque: 4 Nm ... 5.7 Nm).
The PE wires must be earthed – for example,
through a connection to an earthing busbar
or a foundation earth electrode.
Check criterion
The diameter of the DC cable must be
14 mm ... 25 mm in the M32 cable gland.
Terminal lugs are pressed on firmly.
Terminal lugs on the off-grid inverter are
screwed tight (torque: 4 Nm ... 5.7 Nm).
The cables from the battery via the BatFuse
to the off-grid inverter must not be longer
than 10 m.
The conductor cross-section corresponds to
the minimum requirements of 50 mm² ...
95 mm² (recommended conductor cross-
section, see Section 6.6).
Fuse links are matched to the off-grid
inverter.
• SI 8.0H: 200 A
• SI 6.0H: 160 A
Cables are attached to the BatFuse with the
required torque (see BatFuse installation
manual).
All DC sources and DC loads are installed
according to the manufacturer's
specifications.
OK
OK
SI80H-60H-OffGrid-IA-en-11
7 Commissioning
Not
applicable
Not
applicable
71