SMA SUNNY TRIPOWER CORE1 - 6.2 AC Connection

6 Electrical Connection
SMA Solar Technology AG
Operating manual STP50-40-BE-en-15 33
6.2 AC Connection
6.2.1 Requirements for the AC Connection
AC cable requirements as follows:
☐ Conductor type: aluminum and copper wire
☐ External diameter: 35mm to 48mm
☐ Conductor cross-section of grounding conductor: 25mm² to 120mm²
☐ Conductor cross-section of line conductor and neutral conductor: 35mm² to 120mm²
☐ Insulation stripping length: 30mm
☐ Sheath stripping length: 290mm
☐ The cable must be dimensioned in accordance with the local and national directives for the
dimensioning of cables. The requirements for the minimum wire size derive from these
directives. Examples of factors influencing cable dimensioning are: nominal AC current, type of
cable, routing method, cable bundling, ambient temperature and maximum desired line losses
(for calculation of line losses, see the design software "SunnyDesign" from software
version2.0 at www.SMA-Solar.com).
Overview of the required length of the conductor inside the AC connection unit
300
181
193
Figure 10: Interior view of the AC connection unit with dimensions for the conductors (Dimensions in mm)