SMA SUNNY BOY 5.0 - Product Description

3 Product Description
3.1 Sunny Boy
The SunnyBoy is a transformerless PV inverter with three MPP trackers, which converts the direct
current of the PV array into grid-compliant alternating current and feeds it into the utility grid.
Figure 1: Design of the SunnyBoy
Position Designation
A Power Unit
B Enclosure lid of the Power Unit
C Enclosure lid for the Connection Unit
D Connection Unit
E DC load-break switch
The inverter is equipped with a DC load-break switch. If the DC load-break switch is
set to the position I, it establishes a conductive connection between the PV array
and the Power Unit. Switching the DC load-break switch to the O position will inter-
rupt the DC electric circuit.
3 Product Description
SMA Solar Technology America LLC
User Manual 11SB5.0-6.0-1SP-US-40-BA-en-10