Product Information 1312 Product Information
EN EN4.2 Technical Data of the PSk3 Controller
Table 2: Technical Data of the PSk3 Controller
Model
PSk3-7 PSk3-15
Input (DC)
Max. PV voltage 850 V
Voltage range 400 ... 850 V
Minimum MPPT voltage 575 V
Max. current 14 A 27 A
Max. I
SC
PV array 30 A 40 A
Max. inverter backfeed current into
array
0 A
Input (AC)
Rated voltage 380 ... 480 V +/- 10%
Frequency range 45 - 60 Hz
Max. current 17.5 A 30 A
Max. current (inrush) 42 A
Max. fuse ratings 20 A 35 A
Grid type
TN / TT *
Output (AC)
Rated voltage 380 V
Voltage range 380 V / 400 V / 415 V / 440 V /
460 V / 480 V
Rated frequency 50 Hz
Frequency range 0 ... 60 Hz
Rated current 13 A 24.5 A
Rated output power 8.3 kVA 16 kVA
Min. rated power factor 0,85
Rated power of motor 5.5 kW 11 kW
General
Protection I
Ingress protection IP 66
Overvoltage category II (PV), III (AC)
Ambient temperature range -25 ...60°C*
Cooling concept forced cooling
Max. altitude rating
2000 m
Mechanic Dimensions (HxWxT) 428x280x180 mm
Weight 15 kg / 33.07 lbs
*Depending on the actual load situation, a power
derating may apply at ambient temperatures above
50°C. This allows the pumping system to continue
operation at reduced power instead of switching o
completely.
4.3 Technical requirements for the pumps
LORENTZ PSk3 submersible and PSk3 CS-F/CS-G
surface pumps can be used for drinking water
supply, livestock watering and irrigation applications
not containing solid or long bred particles larger
than sand grains, with a max. grain size of 2 mm. The
max. permitted sand content for submersible pumps
is 50 ppm, for surface pumps 20 ppm. A higher sand
content will reduce the pump life considerably due to
wear. The max. salt content is 300-500 ppm at max.
30 °C / 86 °F. Defects due to pumping other liquids
are not covered by the warranty. The maximum
uid temperature for PSk3 submersible pumps is
+30 °C (86 °F), for PSk3 CS-F surface pumps its +70
°C (158 °F) and for PSk3 CS-G surface pumps +90 °C
(194 °F).
PSk3 surface pumps should be sited in a well-
ventilated and frost-free position. The distance
between the pump unit and other objects should be
at least 150 mm / 6” to ensure proper air circulation.
If installed outside, the pump must be protected
*Can only be used with star/wye network. For further information please
get in touch with your LORENTZ distributor.
from rain and direct sunlight. This will increase the
durability of the pump. It should not be stored or
operated within 1 km / 0.6 miles of coastal regions or
in saline air (more than 2 μg/m³).
Additional information about pumps and motors can
be found in the LORENTZ COMPASS sizing software.
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