≥ 6 mm
2
(SUN2000-8KTL-M2/SUN2000-
10KTL-M2/SUN2000-12KTL-M2)
≥ 10 mm
2
(SUN2000-15KTL-M2/SUN2000-
17KTL-M2/SUN2000-20KTL-M2)
6–16 mm
2
(SUN2000-8KTL-M2/SUN2000-
10KTL-M2/SUN2000-12KTL-M2)
10–16 mm
2
(SUN2000-15KTL-M2/SUN2000
17KTL-M2/SUN2000-20KTL-M2)
Standard outdoor 
PV cable in the 
industry
Conductor cross-sectional area: 4–6 mm
2
Cable outer diameter: 5.5–9 mm
(Optional) RS485 
communications cable
core outdoor 
shielded twisted 
pair cable
Conductor cross-sectional area: 0.2–1 mm
2
(0.5 mm
2
is recommended)
Cable outer diameter: 4–11 mm
(Optional) Rapid 
shutdown switch signal 
cable
(Optional) Grid 
scheduling signal cable
•
Connect cables in accordance with the local installation laws and regulations.
•
Before connecting cables, ensure that the DC switch on the inverter and all the switches 
connecting to the inverter are set to OFF. Otherwise, the high voltage of the inverter may 
result in electric shocks.
Preparing for Installation
3.1
3
Electrical Connections
Prepare an anti-theft lock suitable for the lock hole diameter (Ф8 mm) and ensure that the lock 
can be installed successfully. An outdoor waterproof lock is recommended.
3. Install the inverter on the mounting bracket.
4. (Optional) Install an anti-theft lock.