Connecting The Data Cable Of The Battery - SMA COMMERCIAL STORAGE SOLUTION 30 System Manual

SMA Solar Technology AG
13. Tighten the swivel nut on the cable gland hand-tight. This will
secure the network cables in place.
14. If the product is installed outdoors, install overvoltage protection for all components in the network.
15. Either connect the other end of the network cable directly to the local network (e.g., via a router) or connect all
present converters in the system to each other in line topology and connect the first or last converter in the line to
the local network.
Also see:
• Laying plan for network and battery data cables ⇒ page 64
• Network cable requirements ⇒ page 63
8.6.5

Connecting the Data Cable of the Battery

The optional BAT CAN interface is intended for later applications. To connect the data cables of the battery, always
use the BAT ETH socket.
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):
☐ Battery data cable(s)
☐ Where required: Field-assembly RJ45 connector with metal enclosure
Procedure:
1. Disconnect the product from voltage sources (see Section 11.1, page 119).
System Manual
DANGER
8 Electrical Connection
ESSX-20-SH-en-10 71