Connecting The Public Grid (Ac) - SMA Sunny Boy 1100 Installation Manual

SMA Solar Technology AG
5.3 Connecting the Public Grid (AC)
Connection requirements of the grid operator
Always observe the connection requirements of your grid operator!
Cable Design
The cable cross section should be sized using the "Sunny Design" design program (www.SMA.de) so
that line losses do not exceed 1 % at nominal power.
The Sunny Boy 1100 and 1700 must be connected with a cable cross section of at least 1.5 mm².
The cable cross-section required in an individual case depends on factors such as ambient
temperature, type of cable installation, and line losses and must be selected according to the valid
installation guidelines of the respective country (of the installation location).
The maximum cable lengths related to the cable cross section are presented in the following table.
Cable cross section
1.5 mm²
2.5 mm²
Cable Requirements
External diameter
o
9 ... 17 mm
Installation Guide
SB 1100
21 m
35 m
Wire cross section
max. 2,5 mm²
Maximum cable length
SB11_17-IEN084820
Electrical Connection
SB 1700
15 m
22.5 m
19