SMA SB 3300TL - Manual (Page 12)

Device Description SMA Technologie AG
Page 8 SB3300TL-11:FE1905 Operating Instructions
3.2 Device Design
We have focused on a simple functional design when developing the Sunny Boy
string inverters. In its basic design the Sunny Boy 3300TL does not need more than
three LEDs for status display. A display unit is available. The display can already be
installed when your Sunny Boy is delivered or installed later.
The Sunny Boy 3300TL will operate fully automatically without any modification or
configuration as long as it is installed and commissioned according to the technical
specifications. It can nevertheless be modified in terms of operating parameters if nec-
essary. An additional communication interface is required for this, which also can be
used in order to acquire operating data for performance evaluation. Please have a
look at chapter 6 "Plant Monitoring" (page 29) for details.
MPP-
Tracking
Step up converter Bridge
Earth fault-
monitoring
Overvoltage-
protection:
Thermally
monitored
varistors
Optional
display
(IP65)
Optional
communi-
cation
interface:
RS232
RS485
Powerline
Radio
Residual
current
measuring
A
C
-ter
minal
+
Sunny Boy 3300TL enclosure IP65 (outside installation possible)
L
N
PE
DC-In
put wit
h
2 plug connect
or
SMA
grid guard