10 Technical Data
DC overvoltage protection
AC short-circuit current capability
Grid monitoring
Maximum permissible fuse protection
Ground fault monitoring
All-pole sensitive residual-current monitoring unit
Arc fault detection AFCI, type 1, listed accord-
ing to UL1699B
General Data
Width x height x depth without feet and without
disconnectors
Weight
Length x width x height of the packaging
Transport weight (including pallet)
Operating temperature range
Storage temperature
Maximum permissible value for relative humid-
ity, non-condensing
Maximum operating altitude above mean sea
level (MSL)
Typical noise emission
Power loss in night mode
Topology
Cooling method
Number of fans
Enclosure degree of protection according to
UL 50
Protection class
Grid configurations
National standards and approvals,
as per 04/2017
58
STP50-US-40-IA-en_es-11
SMA Solar Technology America LLC
Surge arrester type II (optional)
Current control
SMA Grid Guard 3
100 A
Insulation monitoring: R
Available
Available
621 mm x 733 mm x 569 mm (24.4 in x 28.8
in x 22.4 in)
84 kg (185.2 lbs)
800 mm x 600 mm x 886 mm (31.5 in x 23.6
in x 34.9 in)
100 kg (220.46 lbs)
-25°C to +60°C
-40°C to +70°C
100%
3000 m (9843 ft)
64 dB(A)
5 W
Transformerless
SMA OptiCool
Type 4X/3SX
480 V wye connection , 277 V wye connection
UL 1741, UL 1741 SA, UL 1699B,
IEEE 929-2000, IEEE 1547, FCC Part 15 (Class
A & B)
> 100 kΩ
iso
3
I
Installation Manual