SMA SB 3300TL HC - Manual (Page 16)

Electrical Connection SMA Solar Technology AG
16 SB3300TLHC-IEN094121 Installation Guide
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 Socket for communication (RS485, radio), section 5.5 ”The Communications Interface”
(page 23)
B Sunny Display
C PE (protective earth) connecting cable for cover
D Operating status LEDs
E Connection terminals (AC), chapter 5.2.1 ”Connection of the AC Output” (page 18)
F Tab for grounding the cable shield with RS485 communication
G Socket for the PLC power module (required for mains grid communication)
H Electronic Solar Switch (ESS) socket
I PV input plugs (DC), section 5.3.1 ”PV string (DC) connection” (page 20)
J Varistors, section 9.1 ”The red LED is continuously lit” (page 32)
K Jumper slot for communication
L Communication connector