SMA STP 50-40 Operating Manual page 121

SMA Solar Technology AG
Rated grid frequency
3)
Grid frequency
Operating range at grid frequency 50 Hz
Operating range at grid frequency 60 Hz
Power factor at rated power
Displacement power factor, adjustable
Feed-in phases
Connection phases
Overvoltage category as per IEC 62109-1
Multifunction relay
Maximum DC switching voltage
Maximum AC switching current
Maximum DC switching current
Minimum load
Minimum electrical endurance when the maxi-
mum switching voltage and maximum switching
current are complied with
Efficiency
Maximum efficiency, η
European weighted efficiency, η
Protective devices
DC reverse polarity protection
Input-side disconnection point
DC overvoltage protection
AC short-circuit current capability
Grid monitoring
Maximal output overcurrent protection
Ground fault monitoring
All-pole sensitive residual-current monitoring unit
Active anti-islanding method
4)
Corresponds to 20 years at 12 switching operations per day
5)
Usage category according to IEC 60947: DC-PV2
Operating manual
4)
max
EU
50 Hz
50 Hz / 60 Hz
44 Hz to 55 Hz
54 Hz to 65 Hz
1
0.0 overexcited to 0.0 underexcited
3
3 (+1)
III
30 V
1.0 A
1.0 A
0.1 W
100000 switching cycles
> 98.1 %
> 97.8 %
Short-circuit diode
DC load-break switch
Surge arrester type 1 and 2 (optional)
Current control
SMA Grid Guard 10.0
100 A
Insulation monitoring: R
Available
Frequency shift
STP50-4x-BE-en-23
13 Technical Data
5)
> 34 kΩ
iso
121