KSTAR Knight — off-grid solar inverter, 3.6 / 6 kW
The KSTAR Knight series consists of off-grid inverters of 3.6 and 6 kW with a pure sine wave output. They work with 24 or 48 V batteries, lead-acid or LiFePO4, with a charge current of up to 120 A. Up to six units can be connected in parallel.
- Models
- Knight 3600-24, 3600-48, 6000-48
- Power
- 3.6 / 6 kW (pure sine wave)
- Battery
- 24 / 48 V, lead-acid or LiFePO4
- PV
- Voc up to 500 V, MPPT 120–450 V
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
Knight is a series of KSTAR off-grid solar inverters of 3.6 and 6 kW. It includes the models Knight 3600-24, 3600-48 and 6000-48, where the second number indicates the battery voltage in volts. The output is a pure sine wave, so household and office equipment, lighting and other loads can be connected to the inverter.
The intended use is homes and small businesses where the grid is weak or absent. The inverter distributes energy between the solar panels, the battery and the grid according to priorities set by the user. Operation with a diesel generator is supported, so supply is not interrupted during a long absence of sun and grid. The transfer to backup power takes place without interruption for the load.
The PV input is rated for an open-circuit voltage Voc of up to 500 V, with an MPPT range of 120–450 V. The battery is connected at 24 or 48 V and can be lead-acid or lithium iron phosphate. The charge current from PV and grid together reaches 120 A, and several intelligent charging modes are provided. The battery stage is built as a high-frequency isolated DC-DC converter, which separates the battery from the rest of the circuit.
Efficiency reaches 93.5 %. The enclosure ingress protection rating is IP21, that is, for indoor use only, without direct water ingress. For dusty places a dust protection kit is supplied, there is a contamination alarm, and built-in temperature sensors monitor heating. The model is chosen by two parameters, namely the load power and the battery voltage. The 24 V versions suit smaller systems, while the 48 V version 6000-48 is intended for larger ones, because at the same power the battery current is lower and the cables are thinner. Lead-acid batteries and LiFePO4 have different charging profiles, so the type is selected in the inverter settings before the battery is connected. The generator operating mode is set according to its power and stability.
Power can be increased: up to six inverters work in parallel. Monitoring is carried out in real time through an app and a web interface. The PV terminals are built into the enclosure, which simplifies installation. The model is best selected with a manager based on the power and battery voltage.
Technical specifications
| Models | Knight 3600-24, 3600-48, 6000-48 |
|---|---|
| Power | 3.6 / 6 kW (pure sine wave) |
| Battery | 24 / 48 V, lead-acid or LiFePO4 |
| PV | Voc up to 500 V, MPPT 120–450 V |
| Charge current | up to 120 A (PV + AC) |
| Efficiency | up to 93.5 % |
| Parallel operation | up to 6 inverters |
| Ingress protection | IP21 |
Request a price and lead time
KSTAR Knight — off-grid solar inverter, 3.6 / 6 kW. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Questions and answers
What batteries does the KSTAR Knight support?
It works with 24 or 48 V batteries, lead-acid and LiFePO4. The maximum charge current from PV and grid together is 120 A.
How many Knight inverters can be connected in parallel?
Up to six. This makes it possible to increase power relative to the base 3.6 and 6 kW.
What is the MPPT range and the ingress protection rating?
MPPT works in the range 120–450 V, and the PV open-circuit voltage is up to 500 V. The enclosure ingress protection rating is IP21.
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