Solax X3-Retro Fit, User Manual

Page: 13 / 36

6.1 Grid Connection
X3-Retro Fit series inverter are designed for three phase grid. Voltage is 380/400V,
frequency is 50/60Hz. Other technical requests should comply with the
requirement of the local public grid.
Micro-breaker should be installed between inverter and grid, any load should
not be connected with inverter directly.
Table 4 Cable and Micro-breaker recommended
Connection Steps:
Step1 . Check the grid voltage.
1.1 Check the grid voltage and compare with the permissive voltage range (Please refer to
technical data).
1.2 Disconnect the circuit-breaker from all the phases and secure against re-connection.
Step2 . Remove the down-top cover from the inverter.
Step3 . Make AC wires.
3.1 Choose the appropriate wire(Cable size: refer to Table 4).
3.2 Reserve about 60mm of conductor material sectional area.
3.3 Remove 12mm of insulation from the end of wire.
3.4 Insert stripped wires into AC terminal and insure all conductor strands are captured in the AC
terminal.
3.5 Compress the AC terminal head by using a crimping pliers and screw down screw cap tightly.
Step4 . Insert AC cable into Grid port through screw cap and then tighten the
screw cap. Insert L1,L2,L3 wire and N wire into corresponding ports of AC
terminal.Compress the PE wire with earth terminal , then screw it on the
grounding stud.
Cable 4-5mm
²
Micro-breaker
4-5mm
²
5-6mm
²
5-6mm
²
25A 25A 32A 32A
Model
X3-Fit-8.0E X3-Fit-8.0C X3-Fit-10.0E X3-Fit-10.0C
Electrical Connection Electrical Connection
22
23
PE wire connection
L-wire,N-wire connection
Insert AC cable into Grid port
through screw cap
Cable Size: Refer to Tabel 4(page 22)
Step2 .
Step3 .
Step4 .
Incorrect Connection between Load and Inverter
60mm
12mm
L 1
L 2
L 3
N
P E
6. Electrical Connection