5 electrical connection, 1 safety, 2 overview of the connection area – SMA SB 3300 Installation User Manual
Page 20: 1 exterior view, Electrical connection, Safety, Overview of the connection area, Exterior view

Electrical Connection
SMA Solar Technology AG
20
SB33_38-IEN111851
Installation Guide
5 Electrical Connection
5.1 Safety
5.2 Overview of the Connection Area
5.2.1 Exterior View
The following figure shows the assignment of the individual connection areas on the bottom of the
inverter.
NOTICE!
Damage to the inverter through electrostatic discharges.
Internal components of the inverter can be irreparably damaged by static discharge.
• Before you touch a component inside the inverter, ground yourself by touching a
grounded object.
Object
Description
A
Enclosure openings for communication (with filler-plugs)
B
DC connectors for connecting the PV strings
C
Socket for connecting the Electronic Solar Switch (ESS) DC load disconnection unit
D
AC socket for grid connection