SMA Solar Technology AG
Electrical Connection
Installation Guide
SB11_17-IEN084820
15
5.1.2 View from Inside
The following diagram gives a schematic overview of the various components and connection points
inside the Sunny Boy with the cover removed:
Object
Description
A
Varistors, section 9.1.2
B
Slot for communication (RS 485, radio), section 5.5
C
Display
D
PE (protective earth) connecting cable for cover
E
Operating status LEDs
F
Jumper slot for communication
G
Plug socket (AC), section 5
H
Tab for grounding the cable shield with RS485 communication
I
Electronic Solar Switch (ESS) socket
J
PV input plugs (DC), section 5.2
