SMA SUNNY TRIPOWER X 20-US - Efficiency; Protective Devices; Climatic Conditions; Equipment

14 Technical Data
SMA Solar Technology AG
Operating manualSTPxx-US-50-BE-en-1198
14.8 Efficiency
STP 20-US-50 STP 25-US-50 STP 30-US-50
CEC weighted effi-
ciency, η
CEC
97.5% 98% 98%
14.9 Protective Devices
DC reverse polarity protection Short-circuit diode
Input-side disconnection point DC load-break switch
DC overvoltage protection Surge arrester type 1+2 or type 2 (optional)
AC short-circuit current capability Current control
Grid monitoring SMA Grid Guard 10.0
Maximal output overcurrent protection 60A
Ground fault monitoring Insulation monitoring: R
iso
>100kΩ
All-pole sensitive residual-current monitoring unit Available
Arc fault detection AFCI, type 1, listed accord-
ing to UL1699B Ed. 1
Available
RapidShutdownEquipment Self discharge at all DC and AC connection
lines < 30V
Active anti-islanding method Frequency shift
14.10 Climatic Conditions
Installation in accordance with IEC60721-3-4, Class 4K26
Extended temperature range -25°C to +60°C (-13°F to +140°F)
Extended humidity range 0%to100%
Threshold for relative humidity, non-condensing 100%
Extended air pressure range 79.5kPato106kPa
Transport in accordance with IEC 60721-3-4, Class 2K12
Temperature range -40°C to +70°C (-40°F to +158°F)
14.11 Equipment
DC connection Amphenol DC connector
AC terminal Spring-cage terminals