Delta RPI-H3 User Manual

5 Wiring
5.1 Preparation before Wiring
1. Make sure whether the voltage values, polarities are correct.
2. When grounding of the solar array is necessary, an isolation transformer is required
due to the RPI-H3/RPI-H5 not having a galvanic isolation between the DC-input and
AC-output.
3. The ground fault detection is a fixed internal setting. It always works and can not be
modified.
4. The whole system wiring is shown as in Figure 5-1 and Figure 5-2.
5.
Please refer to Figure 5-1 for the connection. Inverter can accept DC inputs in parallel
(1 MPP tracker/2 parallel inputs).
Figure 5-1 : Connection of system
1
AC Wiring
Communication
Wiring
3
2
DC Wiring (Parallel)
Distribution box
PV Array
22
Wiring

Delta RPI-H3 Specifications

General

Brand	Delta
Model	RPI-H3
Category	Inverter
Language	English