KSTAR BluE — three-phase grid-tied solar inverters, 3–25 kW
The KSTAR BluE series covers three-phase string inverters rated 3–25 kW for residential and small commercial solar plants. DC input is up to 1100 V, with two MPPTs, efficiency up to 98.6 % and ingress protection IP65. Reactive power control is provided.
- Models
- BluE 3K–12K-M1, BluE 12KTL–20KTL-M1 (LV 220 V), BluE-10~25KT-M6
- Power
- 3–25 kW
- Max. PV voltage
- up to 1100 V
- MPPT
- 2, range 140–1000 V, 30 A per MPPT (short-circuit current 40 A)
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
USK ENERGY supplies KSTAR equipment as an official partner of the manufacturer. All KSTAR products
Description
The KSTAR BluE series is built as a scalable three-phase platform of 3–25 kW. One family replaces several different units, which simplifies selection and service. It includes the models BluE 3K–12K-M1, BluE 12KTL–20KTL-M1 for a 220 V low-voltage grid and BluE-10~25KT-M6.
The DC input is rated for voltage up to 1100 V. This allows longer strings to be assembled, reduces cable costs and suits powerful large-format modules. Two MPPTs operate in the range 140–1000 V, which helps on complex roofs with different roof pitch orientations. Each MPPT has an input current of 30 A and a short-circuit current of 40 A. KSTAR states compatibility with modules of 182 and 210 formats.
Efficiency reaches 98.6 %. The enclosure ingress protection rating is IP65, and Type II surge protection is installed on the DC and AC sides. The inverter supplies reactive power as required by the grid, which is important for connection to the distribution network and for operator requirements.
Communication is organized over Wi-Fi or 4G. Data on generation and equipment status goes to a cloud service, and if necessary the installer sees the cause of a fault without a site visit. The documentation for the series includes user manuals for the different modifications and certificates of conformity to IEC 62109-1, IEC 62109-2, EN 62109-1, EN 62109-2, VDE 0126-1-1 and others. Before design, the number of strings per MPPT is determined: different roof orientations are connected to different inputs, and each input finds its own operating point independently. The 40 A short-circuit current at the input must not be exceeded at the lowest temperature, so string lengths are calculated from the maximum open-circuit voltage. For the 220 V low-grid models the connection scheme differs from that of standard three-phase units.
To select a model, determine the grid connection power, the number of strings and their length, the grid voltage and the communication requirements. The string scheme and power are best agreed with a manager, and commissioning is carried out by the installer according to the manual.
Technical specifications
| Models | BluE 3K–12K-M1, BluE 12KTL–20KTL-M1 (LV 220 V), BluE-10~25KT-M6 |
|---|---|
| Power | 3–25 kW |
| Max. PV voltage | up to 1100 V |
| MPPT | 2, range 140–1000 V, 30 A per MPPT (short-circuit current 40 A) |
| Efficiency | up to 98.6 % |
| Ingress protection | IP65 |
| Protection | SPD Type II DC/AC |
| Communication | Wi-Fi / 4G |
Request a price and lead time
KSTAR BluE — three-phase grid-tied solar inverters, 3–25 kW. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Questions and answers
What is the MPPT range of the KSTAR BluE three-phase inverters?
Two MPPTs operate in the range 140–1000 V. Each input has 30 A, with a short-circuit current of 40 A.
What is the maximum voltage at the DC input?
Up to 1100 V. This allows longer strings to be assembled from powerful modules.
What efficiency and ingress protection rating does the BluE series have?
Efficiency reaches 98.6 % and the ingress protection rating is IP65. Type II SPDs are installed on the DC and AC sides.
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