Connecting The Network Cables - SMA COMMERCIAL STORAGE SOLUTION 30 System Manual

8 Electrical Connection
6. For conductors made of aluminum, remove any oxide film and
apply protective grease to the conductors.
7. Connect PE, N, L1, L2 and L3 to the terminals according to the
label. To do so, position each conductor as far as they will go into
the corresponding terminal and tighten the screw of the terminal
(hex socket AF 5, torque for a conductor cross-section of 16 mm²
to 95 mm²: 20 Nm).
8. Ensure that the correct conductors are assigned to the terminals.
9. Ensure that all conductors are securely in place.
Also see:
• AC cable requirements ⇒ page 63
• Overvoltage category ⇒ page 63
8.6.4

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 and the battery are integrated into the existing surge protection.
• When laying the network cables or other data cables outdoors, it must be ensured that a suitable surge
protection device is provided at the transition point of the cable from the inverter or the battery outdoors to the
inside of a building.
Additionally required material (not included in the scope of delivery):
☐ Network cables
☐ Where required: Field-assembly RJ45 connector with metal enclosure
Procedure:
1. Disconnect the product from voltage sources (see Section 11.1, page 119).
68 ESSX-20-SH-en-10
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