Ac Connection; Requirements For The Ac Connection - Alpha ESS SMILE5 Installation, Operation & Maintenance Manual

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6.3. AC Connection

6.3.1. Requirements for the AC Connection

AC cable requirements as follows:
☐ Conductor type: copper wire
☐ External diameter: 12 mm to 18 mm for grid connector, 10 mm to 14 mm for backup
connector,
☐ Conductor cross-section recommendation: 6 mm²
☐ Insulation stripping length: 10 mm
☐ Sheath stripping length: 50 mm
Residual-current monitoring unit:
The inverter does not require an external residual-current device when operating.
If local regulations require the use of a residual-current device, or Hybrid-coupled
storage system with big coupling capacity from the PV array and PV inverter, the
following must be observed:
The inverter is compatible with type A residual-current devices with a rated residual
current of 100 mA or higher. Each inverter in the system must be connected to the
utility grid via a separate residual-current device.
You must protect each inverter with an individual grid/backup circuit breaker in
order to ensure that the inverter can be disconnected safely.
For Australia and New Zealand installation site, the neutral cable of grid side and
backup side must be connected together, otherwise backup output function will not
work.
Description
Grid Side
Backup Side
Max. Current
32.6A
21.7A
Electrical Connection
Breaker Type for SMILE5-INV
40A
32A