Installation Guide

SMA America, LLC 4 Product Description
Installation Manual SB3-5TLUS22-IA-en-16 15
4 Product Description
4.1 Sunny Boy
The Sunny Boy is a transformerless PV inverter which converts the direct current of a PV array into
grid-compliant alternating current and feeds it into the utility grid.
Figure2: Sunny Boy design
Item Description
A Cooling fins
B Type label
CDisplay
D Lower enclosure lid screws
ELEDs
FDC Disconnect
GLower enclosure lid
H Upper enclosure lid