SMA SUNNY BOY 3000-US Installation Manual page 54

7 Configuration
The inverter is compatible with grounding systems with a 208 V AC output or a 240 V AC output.
Example: Jumper assignment for 240 V Delta: 120 V Stinger
The example shows the jumper assignment for the connection of 3 inverters to a 240 Delta: 120 V Stinger power
distribution grid. Observe the sequence in which the inverters are connected to the line conductors.
54 SB30-40-US-IA-en-33
SMA America, LLC
Installation Manual