SMA Solar Technology AG
24 SB50US-80US-IUS094030 Installation Guide
3.4 Utility Configuration Jumpers
The utility configuration jumpers allow the Sunny Boy to be connected to transformers where the
neutral is not present, such as the 208 V and 240 V Delta, shown in Figure "Common Utility Voltage
Configurations" on page 23. The figure below shows an overview of default settings, settings for grids
with no neutral, and fan test settings.
* The Sunny Boy 8000US may not be connected to a 208 V grid.
When using 240 V Delta corner grounded, or 208 V Delta corner grounded grids connect
the L2 terminal to the grounded corner.
Default settings:
(use Input Voltage Wires)
208 V Delta, No Neutral or *
208 Delta corner Grounded *
240 V Delta, No Neutral or
240 Delta corner Grounded
Fan Test
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