
6 Electrical Connection
SMA Solar Technology AG
Installation Manual
SBxx-1SP-US-40-IA-xx-15
32
Compatible grid configurations:
The connection procedure will vary, depending on the grid configuration; the country data set may
have to be set. The following table provides an overview of the compatible grid configurations,
which conductors have to be connected to the inverter to comply with the grid configuration and, if
applicable, which country data set of the inverter has to be set. As standard, the inverter is meant
for connection to a utility grid with a 208 V wye connection or a 240 V split-phase system, and the
country data set
UL1741/2016/120
is factory-set.
Compatible grid configura-
tion
Conductors to be con-
nected
Country data set to be set
240 V split-phase system
L1, L2 and N
UL1741/2016/120
208 V wye connection
L1, L2 and N
UL1741/2016/120
208 V delta connection
L1 and L2
UL1741/2016/208
240 V delta connection
L1 and L2
UL1741/2016/240
6.2.2
Connecting the Inverter to the Utility Grid
Requirements:
☐ All electrical installations must be carried out in accordance with the local standards and the
National Electrical Code
®
ANSI/NFPA 70 or the
Canadian Electrical Code
®
CSA C22.1.
☐ The connection requirements of the grid operator must be met.
☐ The grid voltage must be within the permissible range. The exact operating range of the
inverter is specified in the operating parameters.
Procedure:
1. Disconnect the AC circuit breaker and secure it against reconnection.
2. Ensure that the DC load-break switch of the inverter
is in the
O
position.
3. If the enclosure lid of the Connection Unit is mounted, remove it as follows:
• Unscrew all six screws (TX 25) and carefully remove the enclosure lid towards the front.
While doing so, note that the assembly on the enclosure lid of the Connection Unit and
the communication assembly in the Connection Unit are connected via a ribbon cable.
During the first installation, the ribbon cable is to be connected only to the LED assembly
on the enclosure lid of the Connection Unit.
ENGLISH
Содержание SB3.0-1SP-US-40
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