20
6 System Electrical Wiring
Note:
This product is capable of providing utility interactive and islanded back up power, and can be AC
coupled to a utility interactive photovoltaic inverter. Wiring methods must be in accordance with local
electrical codes. The installer is responsible for ensuring that over-current protection is installed and
sized appropriately for the AC grid and off-grid output circuits, in accordance with the AS/NSZ electrical code.
All field wiring connections to the battery system are at the PCS
cabinet only. The diagram (left) indicates the knockout locations for
conduit entry into the PCS; categorized as AC power and signal level
circuits.
IMPORTANT!
Drilling holes anywhere in the battery or PCS
cabinet renders the warranty null and void.
Use the
knockouts provided at the bottom face of the PCS cabinet only! Do
not drill holes anywhere in the battery system. Use conduit fitting
reducers, if applicable.
6.1 AC power connections
This battery system contains two independent AC power connection ports; one port dedicated for an electrical
utility connection, marked “AC Grid”, the other port dedicated for backup operation, marked “AC load”. This
product’s primary application is intended for utility interconnection, and must be connected to a utility electrical
service supplying single phase 230 Vac / 50 Hz. The backup operation of this product is a secondary application,
and is intended to supply a limited subset of the home’ electrical loads. The system is not intended for whole home
backup. It is also not intended for off-grid only operation.
PCS cabinet – bottom
view
Figure 17: PCS knockout pattern.
