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IstaBreeze® Heli 4.0 Wind Generator – Low RPM, Complete Set with Inverter & Controller
IstaBreeze® Heli 4.0 Wind Generator – Strong, Robust, Durable
The newly developed IstaBreeze® Heli 4.0 is a professional wind turbine that operates reliably even under extreme environmental conditions.
Thanks to the generous dimensioning of the generator components and the effective heat dissipation through housing grooves, a low thermal load is achieved, which significantly extends the service life of the system.
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Robust materials: Stainless steel support structure with precise azimuth pivot bearings
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Durable construction: Permanently lubricated deep groove ball bearings in the generator
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Low maintenance & reliable: Designed for continuous outdoor operation
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Automatic storm protection: Rotor tilts from 13 m/s
The most important difference compared to cheaper wind turbines is efficiency. Our wind generator operates in the optimal speed range between 150 and 600 revolutions per minute, allowing it to develop its full power even at low speeds. Cheaper turbines, on the other hand, require at least 2500 revolutions per minute to reach their maximum power.
ON-Grid wind generator:
| TECHNICAL DATA | DETAILS |
|---|---|
| Generator type | Permanent magnet rotor, brushless, gearless, maintenance-free |
| Magnets | Extremely strong NdFeBo permanent magnets, temperature resistant up to 150 °C |
| Warehouse | Special ball bearings for radial and axial forces |
| Current Type | three-phase current |
| Rectifier | Separate |
| direction of rotation | Both directions of rotation possible |
| tension | 0-1000 VDC power supply |
| start of feed-in | By about 100 rpm |
| Performance | 3700 watts at 420 rpm and 400 VDC |
| Performance curve | Evenly increasing |
| Housing | aluminum housing with surface cooling |
| nacelle housing | GRP (glass fiber reinforced plastic) |
| Class | IP56 |
On-Grid Inverters – Intelligent grid feed-in with maximum yield
This inverter is the heart of the grid feed-in system. It converts the direct current (DC) generated by the wind turbine into grid-compatible alternating current (AC) and precisely synchronizes it with the public power grid.
Important functions:
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MPPT technology: Maximum power point tracking for highest energy yield
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Network synchronization: Automatic tuning with mains frequency and voltage
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Anti-islanding function: Interruption of feed-in in the event of a grid failure
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Monitoring options: Real-time monitoring via app or web portal
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Solar compatibility: Can also be used with PV modules
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Flexible operation: Possibility of feeding into the grid with or without battery
Key technical data (excerpt):
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PV input voltage: 120–450 V (max. 500 V)
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Output power: depending on model 3–6 kVA, 50/60 Hz
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Efficiency: up to 97,6%
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Protection functions: overvoltage, short circuit, battery, reverse polarity
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THD (Total Harmonic Distortion): <2%

On-Grid Wind Controller with Integrated Load Control – Precise and Safe
The controller included in the set is available in 3 kW, 5 kW or 10 kW versions and optimizes the use of your wind turbine through automatic load control.
It detects fluctuating wind conditions and adjusts the energy distribution accordingly – for safe and stable system operation.
Key Features:
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Integrated load control: Automatic system adjustment during wind peaks
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Complete protection: Overvoltage, overcurrent, overheating
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User friendliness: Easy installation, compatible with common wind generators
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Flexibility: Suitable for various system sizes and requirements
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Industrial quality: Durable housing for outdoor use
| Door Design | FKJ-GT3KW |
|---|---|
| Nominal power of the wind turbine | 3 kW |
| Wind turbine max. power | 6 kW |
| Wind turbine rated voltage | AC 220V |
| Solar panels power (optional) | 900 W |
| Other specifications Other specifications | Rectifier, control, DC output |
| Automatic protection function | Overvoltage protection, mains shutdown protection, regulated supply output, arrester |
| Manual function | Manual brake, reset, emergency switch |
| display mode | LCD |
| Show content | Wind turbines voltage, current, power; solar voltage, current, power; DC output voltage, DC output current, DC output power, total power |
| PWM constant voltage | ≥ 320 DC |
| 3-phase dump load voltage of the wind turbine | 350±5VDC |
| Wind turbine 3 phase dump load time lapse | 60-70 minutes |
| Solar panel fuse | 4A |
| PWM Dump Load Fuse | 16A |
| DC output protection | 20A |
| Working environment temperature | -30-60℃ |
| Relative humidity | <90% no condensation |
| Noise (1m) | |
| Degree of protection | IP20 (indoor) IP65 (outdoor) |
| Cooling process | Forced air cooling |
| Communication interface (optional) | RS485/USB/GPRS/WiFi/Ethernet |
| Temperature compensation (optional) | -4 mV/°C/2V, -35°C ~ +80°C, Accuracy: ± 1°C |
| Controller size (mm) | 510 x 360 x 240 |
| Weight of the controller | 17 kg |
| Dump load size (mm) | 400 x 410 x 250 |
| Weight of dump load | 13 kg |
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Type
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FKJ-GT5KW
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FKJ-GT5KW
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FKJ-GT10KW
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Nominal power of the wind turbine
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5KW
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5KW
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10KW
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Wind turbine Max. power
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10KW
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10KW
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20KW
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Wind turbine rated voltage
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AC220V
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AC380-400V
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AC380-400V
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Solar panels power (optional)
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1,5 KW
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1,5 KW
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3KW
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Other specifications Other specifications
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Rectifier, control, DC output
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Automatic protection function
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Overvoltage protection, mains shutdown protection, regulated supply output, arrester
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Manual function
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Manual brake, reset, emergency switch
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Display mode
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LCD
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Show content
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Wind turbine voltage, current, power; Solar voltage, current, power; DC output voltage, DC output current, DC output power, total
Might. |
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PWM constant voltage
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≥ 320dc
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≥ 520dc
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≥ 520dc
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3-phase dump load voltage of the wind turbine
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350 ± 5Vdc
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540 ± 5Vdc
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540 ± 5Vdc
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Wind turbine 3 phase dump load time lapse
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60-70 minutes
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60-70 minutes
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60-70 minutes
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Securing the solar panels
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5A
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5A
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8A
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PWM dump load fuse
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25A
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16A
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32A
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DC output protection
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32A
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20A
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40A
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Working ambient temperature
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-30-60℃
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Relative humidity
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<90% No condensation
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Noise (1m)
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Degree of protection
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IP20 (Indoor) IP65 (Outdoor)
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Cooling process
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Forced air cooling
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Communication interface (optional)
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RS485/USB/GPRS/WIFI/Ethernet
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|||
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Temperature compensation (optional)
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-4mv/°C/2V, -35°C ~ +80°C, accuracy: ± 1°C
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Controller size (mm)
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510 * 360 * 240
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510 * 360 * 240
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580 * 400 * 240
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Weight of the controller
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18kg
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18kg
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23kg
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Dump load size (mm)
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600 * 450 * 380
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600 * 450 * 380
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690 * 450 * 530
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Weight of dump load
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28kg
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28kg
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35kg
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Why this set? – Your benefits at a glance
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Complete solution for wind grid feed-in
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Professional components – perfectly coordinated
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Suitable for private, commercial & agricultural projects
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Future-proof, sustainable & low-maintenance
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Easy integration into existing energy infrastructures
This complete set offers you everything you need to immediately start generating environmentally friendly electricity from wind energy – efficiently, safely and reliably.
Ideal for anyone who wants to become independent, reduce their energy costs and make an active contribution to the energy transition.
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