Communication Module - Delta RPI H3A Operation And Installation Manual

The RPI range of PV inverters uses genuine Multi-Contact® MC4 connectors.
CABLE WIRE SIZE
COUPLER 2.5 MM
POLARITY (AWG 14)
Plus coupler
Minus coupler
Plus coupler
Minus coupler
DC 10 A (RPI H3A)
DC wiring polarities are divided into Plus and Minus, which are shown in Figure 5-4.
The connection shall conform to the indication marked on inverter.

5.4 Communication Module

The Communication Module enables communication between the unit and a computer
and provides 2 RS-485 ports. When using this module, the first step is to take off the
cover located at the bottom right of inverter and pull out the RS485 socket as shown
in Figure 5-5.
WIRE SIZE
2
4.0 MM -
2
2
6.0 MM
(AWG 12-10)
●
●
●
●
Table 5-3: Order Numbers for MC4 connectors
Current Rating
DC 12 A(RPI H4A / H5A)
Table 5-4: Minimum cable size
Figure 5-4: DC Wiring illustration
FEMALE MALE
CABLE CABLE
COUPLER COUPLER
●
●
PV-KBT 4/6 Ⅱ
PV-KST 4/6 Ⅱ
21
MULTI-CONTACT
ORDER NUMBER
32.0010P0001-UR
32.0012P0001-UR
32.0011P0001-UR
●
32.0013P0001-UR
32.0014P0001-UR
32.0016P0001-UR
32.0015P0001-UR
●
32.0017P0001-UR
Wire size
2-3mm 2 / 14 AWG
Wiring