Connecting The Sunny Boy To The Public Grid (Ac); Cable Requirements - SMA SUNNY BOY 1100 Installation Manual

SMA Solar Technology AG
5.2 Connecting the Sunny Boy to the public grid (AC)
Connection requirements of the grid operator
Comply with the connection requirements of your utility operator.
Cable Design
The conductor cross-section should be dimensioned in a way that output losses do not exceed 1% at
nominal power. Use "Sunny Design" (www.SMA.de/en/SunnyDesign) for this.
The maximum cable lengths relative to the conductor cross-section are shown in the following table.
Conductor cross-section
1.5 mm²
2.5 mm²
The conductor cross-section required in individual cases depends on the following factors:
• ambient temperature,
• routing method,
• UV resistance,
• line losses,
• valid installation guidelines of the respective country (of the installation site).

Cable Requirements

Position
A
B
C
Installation Guide
SB 1100
21 m
35 m
Designation
External diameter
Conductor cross-section
Strip insulation
Maximum cable length
SB 1200
18 m
30 m
Value
9 ...17 mm
max. 2.5 mm²
4 ... 5 mm
SB11_12_17-IEN094131
Electrical Connection
SB 1700
15 m
22.5 m
17