SMA SB 1200 Installation - Manual (Page 22)

Electrical Connection SMA Solar Technology AG
22 SB12-17-IA-en-52 Installation Guide
5.2 Connection to the Public Grid (AC)
5.2.1 Conditions for the AC Connection
Cable Sizing
The conductor cross-sectional area should be dimensioned so output losses do not exceed 1 % at
nominal power.
The maximum wire lengths relative to the conductor cross-section are shown in the following table.
The conductor cross-sectional area required in individual cases depends on the following factors
among others:
• Ambient temperature,
• Routing method,
• UV resistance,
• Conduction losses,
• Valid installation guidelines of the respective country (of the installation location).
Cable Requirements
Connection requirements of the utility operator
Comply with the connection requirements of your utility operator!
Conductor cross-section Maximum wire length
SB 1200 SB 1700
1.5 mm² 18 m 15 m
2.5 mm² 30 m 22.5 m
Position Description Value
A External diameter 9 mm …17 mm
B Conductor cross-section max. 2.5 mm²
C Strip insulation 4 mm … 5 mm