InverterBlueGlow G3–6KS
Single-phase grid-tied inverter with one or two MPP trackers, 3–6 kW.
- Power class
- 3–6 kW
- MPP trackers
- 1 or 2
KSTAR / BlueKernel seriesString inverterThree-phase grid-tied inverter
125 kW, three-phase.Eight MPP trackers, two strings each.
Inverters / Three-phase
BlueKernel G125KT7
Three-phase grid-tied string inverter · 125 kW
A three-phase string inverter for commercial and industrial rooftops and ground-mounted arrays. Review the specifications and bring your requirements to VOLFAC.
- AC output
- 125 kW
- MPP trackers
- 8
- Max. efficiency
- 98.7 %
- Ingress protection
- IP66
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Product overview
125 kW on eight MPP trackers.
The BlueKernel G125KT7 converts up to 1,100 V DC from eight MPP trackers, two strings each at 45 A per tracker, into 125 kW at 230/400 V. KSTAR states a DC/AC ratio of up to 1.5, a maximum efficiency of 98.7 % and IP66 protection. Type II surge protection is fitted on the DC and AC sides; AFCI, PID recovery, night SVG and string fault detection are options.
- 8 MPP trackers, 45 ATwo strings per tracker; MPPT range 200–1,000 V, 1,100 V maximum.
- 98.7 % max. efficiencyEuropean efficiency 98.5 %.
- IP66, Type II SPDType II surge protection on the DC and the AC side.
- RS-485, PLC, Wi-Fi, EthernetWi-Fi logger as standard, 4G logger optional.
Technical specifications
Know the details.
BlueKernel G125KT7KSTARModel BlueKernel G125KT7
Brand KSTARModel BlueKernel G125KT7
Input (DC)
- Model
- G125KT7
- Max. DC voltage
- 1,100 V
- Max. input current per MPPT
- 45 A
- Max. short-circuit current per MPPT
- 60 A
- Start voltage
- 300 V
- MPPT voltage range
- 200–1,000 V
- Nominal voltage
- 650 V
- MPP trackers
- 8
- Strings per MPPT
- 2
Output (AC)
- Nominal AC output power
- 125 kW
- Max. AC apparent power
- 125 kVA
- Nominal AC voltage
- 230 / 400 V, 3W+PE or 3W+N+PE
- AC grid frequency
- 50 Hz / 60 Hz (± 5 Hz)
- Max. output current
- 181.2 A
- Power factor
- 0.8 inductive to 0.8 capacitive
- THDi
- < 3 % at nominal power
- Max. efficiency
- 98.7 %
- European efficiency
- 98.5 %
Protection
- Integrated protection
- DC switch, anti-islanding, output overcurrent, DC reverse polarity, AC short circuit, insulation detection, residual current monitoring
- DC / AC surge protection
- DC Type II; AC Type II
- Optional functions
- String fault detection, AFCI, night SVG, PID recovery
General specifications
- Operating temperature
- −30 °C to +60 °C
- Cooling
- Fan cooling
- Max. operating altitude
- 5,000 m, derating above 4,000 m
- Max. operating humidity
- 0–100 %
- Ingress protection
- IP66
- Noise
- ≤ 80 dB
- Topology
- Transformerless
- Communication
- RS-485, PLC, Wi-Fi, Ethernet
- Display
- LED; Bluetooth and app
- Certification and standards
- IEC 62109-1/-2; EN IEC 61000-6-1/2/3/4; EN IEC 61000-3-11/12; EN IEC 62920; IEC 61727; IEC 62116; IEC 61683; IEC 60068-2-1/2/14/30; EU RoHS Directive; EN 50549-1/2; EN 50549-10; CEI 0-16; NC RfG; C10/11; UNE 217001; UNE 217002; NTS V2.1; PEA/MEA
Dimensions and weight
- Dimensions (W × H × D)
- 965 × 700 × 355 mm
- Weight
- 85 kg
Source: KSTAR product pageKSTAR — BlueKernel G125KT7 product page and the G125KT7 datasheet (EN, V2, April 2026).
Downloads
Product documents.
- Technical datasheetG125KT7 · English · PDFG125KT7 · English · PDF
- User manualG100KT–G125KT · English · PDFG100KT to G125KT series · English · PDF
- Manufacturer warranty terms, on-grid invertersKSTAR on-grid inverters · English · PDFKSTAR on-grid inverters · English · PDF
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