1.5 kW to 12 kW Low-Frequency Off-Grid Inverter, Wall Mounted
Remote homes and cabins beyond the distribution network Available in 1.5 / 2.0 / 3.0 / 4.0 / 5.0 / 6.0 / 8.0 / 10 / 12 kW, lead-acid, lithium or custom battery support, single phase.
- 1.5 / 2.0 / 3.0 / 4.0 / 5.0 / 6.0 / 8.0 / 10 / 12 kW rated capacity
- Lead-acid, lithium or custom battery support
- Single phase configuration
- OEM, ODM and private label
Description
Product highlights
- 1.5 / 2.0 / 3.0 / 4.0 / 5.0 / 6.0 / 8.0 / 10 / 12 kW rated capacity
- Lead-acid, lithium or custom battery support
- Single phase configuration
- OEM, ODM and private label
- Factory direct supply
- Export documentation support
Technical specifications
| Rated power | 1.5 / 2.0 / 3.0 / 4.0 / 5.0 / 6.0 / 8.0 / 10 / 12 kW |
|---|---|
| Input voltage range | On request |
| MPPT channels | — |
| Battery type | Lead-acid, lithium or custom |
| Max charge current | On request |
| Efficiency | On request |
| Communication | On request |
| Protection rating | On request |
| Dimensions | On request |
| Weight | On request |
Typical applications
- Remote homes and cabins beyond the distribution network
- Telecom, monitoring and security cabinets
- Rural clinics, schools and community buildings
- Sites combining PV arrays with lead-acid or lithium banks
Related products
Description
The LK-L2 covers 1.5 kW to 12 kW in nine models, all wall mounted and all using a toroidal transformer. The low-frequency stage tolerates 3x rated power for short surges, which is what lets a 3 kW unit start a borehole pump or an air compressor that a high-frequency inverter of the same rating would trip on.
Battery voltage follows the model: 12 / 24 / 48 V on the small units, 24 / 48 V in the middle, and 48 V from 5 kW up. Mains charging current is adjustable so the charger can be matched to the battery bank rather than the inverter. An optional MPPT controller can be built in at order.
Product highlights
- Nine models from 1.5 kW to 12 kW, wall mounted
- 3x rated peak power for pump and compressor starting
- Toroidal transformer, pure sine wave, > 85% conversion efficiency
- Adjustable mains charging current
- Battery priority or mains priority working mode
- Optional built-in MPPT solar controller
Technical specifications
| Rated power | 1.5 / 2.0 / 3.0 / 4.0 / 5.0 / 6.0 / 8.0 / 10 / 12 kW |
|---|---|
| Battery type | Lead-acid, lithium or custom |
| Phase | Single phase |
| Topology | Low frequency, toroidal transformer |
| Optional MPPT rated current | 60 A / 100 A, by model |
| Max PV input power | 12 V 840 W / 24 V 1680 W / 48 V 3360 W; 24 V 2800 W / 48 V 5800 W; 5600 W |
| Max PV open-circuit voltage | 120 VDC (12 / 24 V) / 180 VDC (48 V) |
| MPPT tracking range | 12 V 15-80 V / 24 V 30-100 V / 48 V 60-140 V |
| Battery voltage | 12 / 24 / 48 VDC, by model |
| Battery voltage range | 10.5-15 V / 21-30 V / 42-60 V |
| AC input voltage | 220 VAC, selectable 230 / 240 VAC |
| AC input range | 170-275 VAC (220 V) / 180-285 VAC (230 V) / 190-295 VAC (240 V) |
| AC input frequency | 45-55 Hz or 55-65 Hz |
| AC output voltage | 220 / 230 / 240 VAC ±2% |
| Output waveform | Pure sine wave |
| Conversion efficiency | > 85% |
| No-load consumption | 1% of rated power |
| Display | LCD |
| Communication | RS485 / app, WiFi or GPRS monitoring optional |
| Protection rating | IP20 |
| Operating temperature | −15 to 40 °C |
| Dimensions (LxWxH) | 470x300x148 mm to 684x430x250 mm, by model |
| Weight | 13.5 kg to 62 kg, by model |
Typical applications
- Off-grid homes with borehole pumps and workshop tools
- Rural clinics and schools running motor-driven equipment
- Farms with irrigation and milking loads
- Telecom and microwave sites on generator backup
- Village mini-grids and community water pumping