Inverter – KSTAR – KAC50DP2 – hybrid – HV
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KStar- Falownik hybrydowy PCS KAC50DP2
Product details
BluePulse
BluePulse by KSTAR is a series of energy storage solutions designed to work with photovoltaic systems in DC- or AC-coupled configurations. It includes inverters with rated outputs of 20–50 kW and energy storage systems with 280 Ah LFP cells. It supports self-consumption, shifting energy consumption to off-peak hours, time-of-use tariff management, and backup power.
Key benefits of BluePulse
- Storage capacity 71.68–107.52 kWh depending on the model, with a permissible depth of discharge of 95%.
- Integrated STS switch enables switching between grid-connected and off-grid operation within 10 ms when operating with a single power converter and a purely resistive load.
- Parallel operation up to 20 power converters in grid-connected mode or up to 10 in a system with grid-connected and off-grid operation.
- Integrated BMS and EMS systems and cloud-based control with monitoring 24 hours a day, 7 days a week.
- Energy storage safety equipment: carbon monoxide detection, audible and visual alarm, exhaust fan, explosion relief panel and connection for supplying firefighting water.
- Compatibility with photovoltaics: 4 MPPT trackers, 2 strings per MPPT, and a maximum PV system capacity of 40–100 kWp, depending on the inverter model.
Who is this a good choice for?
BluePulse is a solution for owners and managers of factories, hotels, and farms who want to combine photovoltaics with energy storage. Support for self-consumption and time-of-use tariffs enables energy use management, while the backup power function meets the needs of facilities requiring an uninterrupted power supply.
| Parameter | KAC20DP2 | KAC25DP2 | KAC29.9DP2 | KAC30DP2 | KAC40DP2 | KAC49.9DP2 | KAC50DP2 | BC70DE2 | BC89DE2 | BC107DE2 |
|---|---|---|---|---|---|---|---|---|---|---|
| DC input data — photovoltaics | ||||||||||
| MPPT voltage range (V DC) | 250 ~ 950 | |||||||||
| Maximum input voltage (V DC) | 1000 | |||||||||
| Rated MPPT voltage (V DC) | 720 | |||||||||
| MPPT voltage range at full load (V) | 300 ~ 800 | 350 ~ 800 | 400 ~ 800 | 500 ~ 800 | 600 ~ 800 | |||||
| Maximum PV power (kWp) | 40 kWp | 50 kWp | 60 kWp | 80 kWp | 100 kWp | |||||
| Number of MPPTs / number of strings per MPPT | 4 / 2 | |||||||||
| Maximum current per MPPT (A) | 45 A | |||||||||
| DC input data — battery connection | ||||||||||
| Battery voltage range (V DC) | 150 ~ 950 | |||||||||
| Rated battery voltage range (V DC) | 180 ~ 800 | |||||||||
| Maximum DC current (A) | 40 Adc x 2 | 50 Adc x 2 | 60 A DC × 2 | 80 Adc x 2 | ||||||
| Maximum DC power (kW) | 22 kW | 27.5 kW | 29.9 kW | 33 kW | 44 kW | 49.9 kW | 55 kW | |||
| Number of DC inputs | 2 | |||||||||
| AC output data — grid-connected operation | ||||||||||
| Rated AC output power (kW) | 20 kW | 25 kW | 29.9 kW | 30 kW | 40 kW | 49.9 kW | 50 kW | |||
| Maximum AC output power (kVA) | 22 kVA | 27.5 kVA | 29.9 kVA | 33 kVA | 44 kVA | 49.9 kVA | 55 kVA | |||
| Maximum AC input power per phase (kW) | 20 | 25 | 27,5 | 37,5 | ||||||
| Rated AC output current (A) | 29 A | 36 A | 43.5 A | 43 A | 58 A | 72 A | ||||
| Maximum AC input current (A) | 64 A | 80 A | 87 A | 96 A | 128 A | 144 A | 160 A | |||
| Rated AC voltage (V) | 230 / 400 V; 220 / 380 Vac | |||||||||
| Permissible AC voltage variation (%) | -15% ~ +10% | |||||||||
| AC connection arrangement | 3L+PE+N | |||||||||
| Rated grid frequency and tolerance (Hz) | 50 Hz / 60 Hz (±5 Hz) | |||||||||
| Total harmonic current distortion THDi (%) | < 3% (100% Load) | |||||||||
| Power factor adjustment range | 0.8 inductive (under-excited) to 0.8 capacitive (over-excited) | |||||||||
| Backup power output | ||||||||||
| Rated AC voltage (V) | 230 / 400 V; 220 / 380 Vac | |||||||||
| AC connection arrangement | 3L+PE+N | |||||||||
| Voltage distortion factor THDv (%) | < 3% (Rated Power) | |||||||||
| Rated frequency (Hz) | 50 Hz / 60 Hz | |||||||||
| Rated AC output power (kW) | 20 kW | 25 kW | 29.9 kW | 30 kW | 40 kW | 49.9 kW | 50 kW | |||
| Maximum AC output power per phase (kW) | 20 | 25 | ||||||||
| Maximum output current (A) | 87 A | 110 A | ||||||||
| Generator input | ||||||||||
| Maximum input current (A) | 87 A | 110 A | ||||||||
| Efficiency | ||||||||||
| Maximum efficiency (%) | 97% | 97,5% | ||||||||
| Protection | ||||||||||
| DC reverse polarity protection | Yes | |||||||||
| Anti-islanding protection | Yes | |||||||||
| Overheating protection | Yes | |||||||||
| Grid monitoring and ground fault detection | Yes | |||||||||
| Insulation monitoring | Yes | |||||||||
| DC / AC surge protection | DC Type II; AC Type II | |||||||||
| AFCI arc fault protection | Optional | |||||||||
| Battery specifications | ||||||||||
| Battery type | LFP | |||||||||
| Battery module energy capacity (kWh) | 17.92 kWh | |||||||||
| Cell capacity (Ah) | 280 Ah | |||||||||
| Number of modules | 4 | 5 | 6 | |||||||
| Total battery energy capacity (kWh) | 71.68 kWh | 89.6 kWh | 107.52 kWh | |||||||
| Rated voltage (V) | 256 V | 320 V | 384 V | |||||||
| Operating voltage range (V) | 228 ~ 288 V | 285 ~ 360 V | 342 ~ 432 V | |||||||
| Maximum charge / discharge rate (C) | 0.5 C | |||||||||
| Depth of discharge DoD (%) | 95% | |||||||||
| Dimensions and weight | ||||||||||
| Dimensions, W x H x D (mm) | 900 x 730 x 355 mm | 1062 x 2083 x 1371 mm | ||||||||
| Inverter weight (kg) | 101 kg | |||||||||
| Battery weight (t) | < 1,2 | < 1,35 | < 1,5 | |||||||
| Operating conditions | ||||||||||
| Installation location | Outdoor | |||||||||
| Protection rating | IP65 | IP54 | ||||||||
| Corrosion protection class | C4 | |||||||||
| Operating temperature (°C) | -30 ~ 60°C (> 45°C Derating) | -30°C ~ +50°C | ||||||||
| Power derating start temperature (°C) | > 45 | |||||||||
| Operating humidity (%) | 0 ~ 100% (Non-condensing) | 5% ~ 95% (Non-condensing) | ||||||||
| Maximum working height (m) | 4000 m (> 3000 m derating) | ≤ 3000 m | ||||||||
| Power derating start altitude (m) | > 3000 | |||||||||
| Cooling method | Intelligent Air Cooling | Air Conditioner | ||||||||
| Construction and communication | ||||||||||
| Topology | Transformerless | |||||||||
| Communication interfaces | RS-485 / CAN | Ethernet; CAN; RS485 | ||||||||
| Communication protocols | CAN; MODBUS TCP / IP | |||||||||
| Certificates | ||||||||||
| Certificates and standards | UL 9540A; UN38.3; MSDS; IEC 62040; IEC 62477; IEC 62619; IEC 63056; IEC 61000-6-2/4 | |||||||||
The maximum charge and discharge rate is limited by the inverter. With two batteries and one inverter, the maximum power remains unchanged.

