1. The inverters has triple MPPTs. For MPPT1, users can connect two strings. For MPPT2 and
MPPT3, users can connect one string.
Step 1: Strip 1/4-5/16inch(6-8mm) insulation from the cable end and crimp OT rings for the cable ends.
Step 3: Secure the conduit fitting to the enclosure using the counter nut.
2. When users connect 2 strings to MPPT1, make sure the two strings has same quantity of
solar panels. The inverter will limit the total MPPT1/MPPT2/MPPT3 input current to
25A/15A/15A automatically.
3. The inverter will limit the max solar input power to 18kW totally.
09
10
face the same direction
Steps for PV connection
d. Route the PV conductors through the
conduit and conduit fitting into the inverter.
a. Strip off 1/4-5/16inch(6~8mm) insulation
on the PV string positive and negative
conductors.
b. Use wire ferrules for PV string conductors
if they are stranded wire type.
c. Insert the conduit fitting to the opening
for PV connection and tighten it from inside
using the counter nut.
e. Secure the cable gland in place.
f. Ensure that the cables are connected
correctly and securely. Then take appropriate
measures to ensure that the conduit and conduit
fittings are fastened reliably, and seal the cable
entry holes.
3.5 Battery Connection
3.5.1 Battery power cable connection
2
3/0-4/0 AWG(85-100 mm )
600V
Cable Requirement:
12K
Step 2: Route the battery power cable through the cable gland, connect positive to BAT+,negative to BAT-.
Step 5: Fix the cable gland in place.
Step 4: Fasten the OT rings of battery positive and negative cables to the lugs according to the marking.
Polarity reverse will damage the inverter!
Install a DC isolator between battery and
inverter can avoid potential damages
caused by electric arc.
3.5.2 Battery communication cable connection
A correct battery communication cable must be used to connect the battery to the inverter when users
choose lithium-ion battery type. Please select ‘Lead-acid ‘ type if the lithium battery can not communicate
with inverter. The battery communication port on inverter is a RJ45 socket, Pin for the RJ45 plug of the
communication cable is as below. Make the communication cable according to the below inverter Pin and
the correct pinout of communication port on battery. The inverter supports both CAN and
RS485 communication.
Pin
1
Description
2
3
4
NC
GND
NC
BAT CAN H
5
6
7
8
BAT RS485 A
NC
BAT RS485 B
Pin
1 2 3 4 5 6 7 8
BAT CAN L
Battery CAN&RS485
20(N.M)
Minimum Voltage
Model
Cable Size
Torque for cable connection
OT ring
RNB100-10