Electrical Connection SMA Solar Technology AG
46 SMC9-11TLRP-IEN100640 Installation Guide
Extending the Cable
If you must bridge large spans between 2 Sunny Mini Centrals, you can extend the SMA Power
Balancer cable.
Use an "LiYCY" cable for this with the illustrated layout:
• Indoors: Li-2YCY 1 x 2 x 0.25 mm²
• Outdoors: Li-2YCYv 1 x 2 x 0.25 mm²
Proceed as follows:
1. Cut the SMA Power Balancer cable in the middle.
2. Connect the wires and shield inside a junction box (outdoors) with an extension cable 1:1
(max. cable length 300 m).
3. Connect the SMA Power Balancer cable to the Sunny Mini Central as described in section
”Cabling Procedure” (page44).
Object Description
A Flexible insulation
B Shielding
C Twisted pair (1 x 2 x 0.25 mm²)
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