SMA METER BOX FOR SUNNY BACKUP - Manual (Page 17)

SMA Solar Technology AG 6 Electrical Connection
Installation Manual METERBOXSBU-IA-en-40 17
6.2 Connection Area of the Feed-through Adapter
Figure8: Connections of the feed-through adapter
6.3 Connecting the Reading Heads of the Energy Meters
6.3.1 Cable Route for Connecting the Reading Heads
Requirements:
☐ A mono-directional meter or a bidirectional meter is implemented as a PV production meter.
And
☐ A bidirectional meter is implemented as a meter for grid feed-in and purchased electricity.
In order to install the Meter Box outside of the AC main distribution, always observe the following
specifications on the cable route:
• Keep cable route within the main distribution as short as possible.
• Wind up the cables outside of the AC main distribution.
• Keep the largest possible clearance to live conductors and component parts.
E "SyncIn" jack Input for communication with the Sunny Backup and the
Automatic Switch Box
F "SyncOut" jack Output for communication with the Sunny Backup and the
Automatic Switch Box
Position Designation
A Upper jack
B Front jack "1"
C Front jack "2"
D Lower jack
Position Designation Explanation