Install Manual

Table Of Contents
6 Electrical Connection
SMA Solar Technology AG
Installation Manual STP33-62-US-41-IA-en_es-11 29
6.3 Connecting the Network Cables
DANGER
Danger to life due to electric shock in case of overvoltages and if surge
protection is missing
Overvoltages (e.g. in the event of a flash of lightning) can be further conducted into the building
and to other connected devices in the same network via the network cables or other data cables
if there is no surge protection. Touching live parts and cables results in death or lethal injuries due
to electric shock.
Ensure that all devices in the same network are integrated in the existing overvoltage
protection.
When laying the network cable outdoors, ensure that there is suitable surge protection at
the network cable transition from the product outdoors to the network inside the building.
The Ethernet interface of the inverter is classified as "TNV-1" and offers protection against
overvoltages of up to 1.5kV.
Additionally required material (not included in the scope of delivery):
Network cables
Where required: Field-assembly RJ45 connector.
Additionally required material for the use of conduits (not included in the scope of
delivery):
Conduit (trade size: 27mm (1in) or smaller with suitable reducer bush)
Rain-tight or conduit fittings for wet locations complying with UL514B (trade size: 27mm
(1in) or smaller with suitable reducing bush)
Cable requirements:
The cable length and quality affect the quality of the signal. Observe the following cable
requirements.
Cable type: 100BaseTx
Cable category: Cat5, Cat5e, Cat6, Cat6a or Cat7
Plug type: RJ45 of Cat5, Cat5e, Cat6 or Cat6a
Shielding: SF/UTP, S/UTP, SF/FTP or S/FTP
Number of insulated conductor pairs and insulated conductor cross-section: at least 2 x 2 x
0.22 mm² (2 x 2 x 24 AWG)
Maximum cable length between two nodes when using patch cables: 50m (164ft)
Maximum cable length between two nodes when using installation cables: 100m (328ft)
UV-resistant for outdoor use
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