SMA SI-TB-BOX-10 - Manual (Page 65)

SMA America, LLC 14 Technical Data
Installation Manual SI_TDBOX-IA-eng-IUS122211 65
Efficiency curve
Figure 18: Efficiency curve of Smartformer
Ambient conditions
Ambient temperature − 25°C … 50°C
( − 13°F … 122°F)
Maximum value for relative humidity, non-
condensing 100%
Protection class NEMA 1
Enclosure degree of protection IP20
Contact hazard protection cover degree of
protection IP10
Overvoltage category 3
EMC environment FCC Part 15
86
88
90
92
94
96
98
SI-TD-BOX
0.4 1.0 0.8 0.2 0.6
Output power / Rated power
0.0
Ef
ficency [%]