User Manual
6 Electrical Connection
37
6.3.2 PV Input Connection
DC Cable Requirements
The cross-section of the DC cable must be selected carefully in order to prevent
accidentally disconnections of the inverter from the grid due to high impedance of
the cable.
Tab. 6-3
DC cable requirements
Cross-sectional
area
Cable
External
diameter
Max.
withstand
voltage
Max. input current
35~95mm
2
14~21mm
1000V 120A
DC Cable Connection
High voltage inside the inverter!
Make sure all DC and AC cables connected to the inverter are voltage-free
before electrical connection.
Do not connect the AC circuit breaker before electrical connection is
completed.
Step 1
Peal the cable.
•
The DC cables can be Hard-line&flexible wires.
•
For flexible cables (stranded wires), use cold pressing terminal lugs.
Step 2
Fix the DC cable to the corresponding terminals with torque shown in the
“Tab. 6-1 Screw tightening torque” and “Tab. 6-2 Screw tightening torque”.
Step 3
Pull the cable gently to make sure it is
secured.
* Pictures here are indicatively only. Product in kind prevail.
Step 4
Screw the cap nut to the cable.
Step 5
Seal the gaps between the DC cable and the gland inside the lower part of the
cabinet by fireproofing mud.
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