Connecting The Network Cables - SMA STP3.0-3AV-40 Operating Manual

6 Electrical Connection
3. Insert the pan head screw M5x12 into the screw
hole in the ring terminal lug and screw the ring
terminal lug with screw firmly onto the connection
point for additional grounding using a Torx
screwdriver (TX 25, torque: 2.5 Nm).
6.3

Connecting the Network Cables

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.
Damage to the inverter due to moisture ingress
Moisture penetration can damage the inverter and impair its functionality.
• Connect the network cable with the supplied RJ45 protective sleeve to the inverter.
Additionally required material (not included in the scope of delivery):
☐ 1 network cable
32 STP3-6-3AV-40-BE-en-13
DANGER
NOTICE
SMA Solar Technology AG
Operating manual