5 Wiring
5.1 Preparation before Wiring
1. Ensure voltage values and polarities are correct.
2.
When grounding the solar array positive or negative terminal, an isolation
transformer is required due to the H2.5 / H3 / H3A / H4A / H5A not having
galvanic isolation between the DC-input and AC-output.
3. The ground fault detection is a fixed internal setting. It cannot be modified.
4. Please refer to Figure 5-1 for connections. Inverter can accept DC inputs in
parallel.
5. According to IEC 62109-2, the PV modules need to have an IEC 61730 Class
A rating.
Figure 5-1 : Connection of a system for floating solar array
Wi-Fi Communication
3
2
DC Wiring
Parallel or
Separate
Distribution box*
* According to local regulations, DC circuit breaker may be necessary.
PV Array
1
AC Wiring
WARNING! SHOCK HAZARD
When the photovoltaic array is exposed to light, it supplies a DC voltage to the
Inverter, a shock hazard may exist due to output wires or exposed terminals.
To reduce the risk of shock during installation, cover the array with an opaque
(dark) material and ensure that the Disconnect Device in the inverter is set to OFF
before commencing any wiring.
17
Wiring
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