VEICHI SI21 2.2kW Solar Pump Inverter 250-750VDC
VEICHI SI21 2.2kW Solar Pump Inverter 250-750VDC
VEICHI SI21 2.2kW Solar Pump Inverter 250-750VDC is a dedicated solar pumping drive for photovoltaic water-pumping systems, with a 250-750VDC solar input range.
Key Features
- MPPT solar-power tracking for photovoltaic water pumping.
- Variable-frequency control for compatible pump motors.
- Pump functions include dormancy, dry-run, low-speed and water-level control where configured.
- Supports compatible asynchronous and permanent-magnet motors.
- Optional IoT hardware and monitoring functions depend on the ordered configuration.
Technical Specifications
| Series | SI21 |
|---|---|
| Rated power | 2.2kW |
| PV input range | 250-750VDC |
| Recommended PV Voc range | 600-700VDC |
| Motor output | three phase, 380V class |
| Rated output current | 5.5A |
| Maximum MPPT efficiency | up to 99.8% |
| Protection functions | overload, short circuit, over-temperature, under/over-voltage, low-speed and pump-system protection functions |
| Manufacturer | Veichi |
| MPPT efficiency, series specification | Up to 99.8% |
| Application | Solar / hybrid water pumping |
| Output frequency | 0–599 Hz |
| Store SKU | V-Si21-2,2-250-750VDC |
Typical Applications
Suitable for solar-powered borehole and water pumps used in irrigation, livestock watering, residential water supply, reservoirs, fountains and other off-grid or energy-efficient pumping systems.
Technical Resources
Browse our Technical Resources & Manuals page for manufacturer documents and information on requesting the cut sheet, datasheet or manual for your exact model.
- VEICHI SI21 product information and datasheet
- VEICHI SI21 simplified user manual
- VEICHI solar pump technical downloads
Use the documentation for the exact ordered model. Family manuals may cover options and ratings that are not included with this unit.
Selection & Compatibility
- Confirm pump motor voltage, full-load current, PV array Voc under local temperature conditions, cable sizing and protection requirements before commissioning. Not sure of the right size? Contact Softcore Group Industrial Solutions for a quotation.
- Match pump voltage/current and duty to the inverter. Check PV Voc at the lowest site temperature, operating voltage, isolation, protection and cable requirements against the exact manual.
Availability & Ordering
Special-order product. Availability and delivery lead time are confirmed on quotation.
Supplied by Softcore Group Industrial Solutions. Request a quotation with the model number and application requirements. Programming, installation and commissioning are included only where expressly quoted.