Climatic category in accordance with IEC
60721-3-4
4K4H
Environmental category
outdoors
Pollution degree outside the enclosure
3
Pollution degree inside the enclosure
2
Operating temperature range
-25°C to +60°C
Maximum permissible value for relative humid-
ity, non-condensing
100%
Maximum operating altitude above mean sea
level
3,000 m
Typical noise emission
51 dB(A)
Power loss in night mode
1 W
Topology
transformerless
Cooling concept
SMA OptiCool
Degree of protection for electronics in accor-
dance with IEC 60529
IP65
Protection class in accordance with IEC 61140
I
Grid configurations
TN-C, TN-S, TN-C-S, TT (when V
N_PE
< 20 V)
National standards and approvals,
as per 07/2014*
AS 4777, BDEW 2008, C10/11:2012, CE,
CEI 0-16, CEI 0-21, DIN EN 62109-1,
EN 50438, G59/3, IEC 61727/MEA,
IEC 61727/PEA, IEC 62109-2,
NEN EN 50438, NRS 097-2-1, PPC,
RD 661/2007, RD 1699:2011, SI 4777, VDE-
AR-N4105, VDE 0126-1-1, VFR 2014,
UTE C15-712-1
*
AS 4777, BDEW 2008, CEI 0-16, CEI 0-21, IEC 61727/MEA, IEC 61727/PEA, NRS 097-2-1,
SI 4777:
In preparation.
EN 50438:
Does not apply to all country standard deviations of EN 50438
IEC 62109-2:
In order to meet the requirements of this standard, the inverter must either be equipped
with a multifunction relay used as a fault indicator contact or there must be a connection to Sunny Portal
with the fault alarm in Sunny Portal activated.
NRS 97-1-2:
This standard requires a separate label attached to the AC distribution board which
indicates the AC-side disconnection of the inverter in case of a grid failure (for further details, see NRS
97-1-2, Sect. 4.2.7.1 and 4.2.7.2).
RD 1699 and RD 661/2007
: Contact the SMA Service Line for restrictions in specific regions.
10 Technical Data
SMA Solar Technology AG
Operating Manual
STP20-25TL-BE-en-10
38
