SMA SSM-U-1615 - Manual (Page 66)

Mechanical Data
Weight of pole mounting bracket* 2.1 kg
Minimum clearance between enclosure and
floor if inline fuse connectors are installed under-
neath the SMA String-Monitor 800 mm
* available as an accessory (see Section 14, page 72)
** depending on the number of string inputs of the SMA String-Monitor, without accessories
Electrical Data
PV array Negatively grounded/positively grounded/
insulated
Rated voltage
At installation altitudes over 2,000 m, an addi-
tional reduction factor must be taken into ac-
count. 1,500 V
DC
2,001 m to 3,000 m reduction by 1.0% per
100 m
3,001 m to 4,000 m reduction by 1.2% per
100 m
Rated current (I
DCmax
) at 50°C* 315 A
DC
Rated current (I
DCmax
) at above 50°C* Reduction by 2.5% per K
Rated current per measuring input* 17.5 A
DC
Fuse characteristics gPV
Number of string inputs per potential 16 / 24 / 32
DC supply voltage from PV array +200 V
DC
to +1,500 V
DC
External AC supply voltage** 230 V
AC
±20%
DC load-break switch 400 A
DC
DC load-break switch - actuation under load Max. 200 switching cycles
DC load-break switch - actuation
at ‒40°C Max. 100 switching cycles
Surge arrester DC Type 2 (monitored)
I
nom
= 20 kA
I
max
= 40 kA
Overvoltage category II
* Maximum continuous operating current up to the specified ambient temperature, taking a maximum
irradiation up to 1,200 W/m 2 into account (hourly average value of the horizontal global radiation). In
case the irradiation is higher, the rated current must be adapted linearly downwards.
** available as an accessory (see Section 14, page 72)
Current Measurement
Number of measuring channels 16 / 24 / 32
13 Technical Data SMA Solar Technology AG
Operating Manual SSMUXX15-BE-en-10 66