DC Input levels
Input levels (DC)
Maximum recommended PV
generator power
18 kW
24 kW
MPPrange@Pnom
420-800 V
515-800 V
Working range
200 V -950 V
Rated voltage
673 V
Starting voltage
250 V
Open circuit voltage
1,000 V
Max. input current
2
2 x 20 A
Number of strings
2 x 2
Number of MPP controls
2
Max. short-circuit current (ISC
max.)
2 x 32 A
Input source feedback current
0 A
Polarity safeguard
yes
String fuse
no
DC overvoltage protection
Base
AC Output levels
Output levels (AC)
Nominal power
15.0 kVA [@240V];
15.0 kVA [@230V];
15.0 kVA [@220V]
20.0 kVA [@220V];
20.0 kVA [@230V];
20.0 kVA [@240V]
Rated voltage
220 V / 380 V [3/N/PE];
230 V / 400 V [3/N/PE];
240 V / 415 V [3/N/PE]
220 V / 380 V [3/N/PE]
230 V / 400 V [3/N/PE]
240 V / 415 V [3/N/PE]
277 V / 480 V [3/N/PE]
Voltage range: continuous op-
eration
305 V - 480 V (Ph-Ph)
Rated current
3x 20.9 A [@415V];
3x 21.7 A [@400V];
3x 22.8 A [@380V]
3x 27.9 A [@415 V];
3x 28.9 A [@400V];
3x 30.4 A [@380 V]
Max. continuous current
3 x 23.0 A
3 x 31.0 A
Contribution to peak short-cir-
cuit current ip
44.96 A
61.16 A
Initial short-circuit alternating
current (Ik" first single period
effective value)
24.29 A
33.66 A
Short circuit current continuous
[ms] (max output fault current)
27.6 A
The "Max. input current" is the maximal theoretical value for operation with full power when the feed-in
power is low. The device is limited to the maximum AC power.
The "Max. short-circuit current (ISC
max
.)" defines together with open circuit voltage (U
DCmax
) the characteristic of
the connected PV generator. This is the relevant value for string sizing and is the absolute maximal limit for in-
verter protection. The connected PV-Generator must be designed, that the max short circuit current is below
or equal to of the inverter ISC
max
. of the inverter under all foreseeable conditions and therefore complies with
IEC 61730 Class A. In no condition the design may result in a greater short circuit current than ISC
max
. of the
inverter
.
KACO blueplanet 15.0TL3 KACO blueplanet 20.0TL3