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Solar Pump Inverter for single phase pump 220V 0.75-7.5KW run automatically
The Solar Seeker SP1 Series is a high-efficiency solar pumping inverter, specially engineered for use with AC water pumps in solar-powered irrigation and water supply systems. Designed for both ease of use and reliable performance, this inverter ensures your pump system runs smoothly even under challenging weather conditions.
With its plug-and-play design, the SP1 Series requires no complex setup or debugging—simply power on, and the inverter will automatically adjust system parameters within one minute. Ideal for farms, gardens, rural water supply, and livestock watering, the SP1 Series offers a cost-effective and low-maintenance solution for solar water pumping.
- Input: 220V AC,Single phase
- Output: 220V AC, Single phase stably
- Power Range: from 0.75KW to 7.5KW
SP X XRX
① ② ③
| Sign | Identification | Description | Content |
| ① | SP | Series name | Solar pumping series |
| ② | X | Voltage degree | 4: 380V/three phase input/three phase output 3: 220V/three phase input/three phase output 2: 220V/single phase input/three phase output 1: 220V/single phase input/single phase output |
| ③ | XRX | Output power | 0R7: 0.75kW, 1R5: 1.5kW, 002: 2.2kW, 004: 4kW, ……, 250: 250kW |
Key Advantages:
- Adjustable Auto-Run Delay
The waiting time for automatic operation can be adjusted, helping to reduce frequent restarts and effectively extend the inverter’s lifespan. - Advanced Dry-Run Protection
If the output current remains below normal levels for over 60 seconds, the system will shut down for 300 seconds before restarting—protecting the pump from dry-run damage. - Comprehensive Protection Features
Equipped with multiple safety functions including low-frequency protection, overload and over-voltage protection, and auto shut-off triggered by water level sensing. - Enhanced Cooling System
The internal heat sink and fan have been upgraded multiple times. When the internal temperature reaches 50°C, the fan automatically activates to maintain safe operation and prolong the device’s service life. - User-Friendly Troubleshooting
Smart design enables users to quickly identify and resolve faults based on on-screen error codes, reducing the need for professional maintenance and saving on service costs.
When inverter show alarm signal with software default setting, keypad will show number as below.
| 111 | When inverter output frequency is lower than 35Hz for 60s, inverter shows alarm signal “111”. |
| 222 | When pump are dry running for 60s and output current is smaller than P28.13 value, inverter shows alarm signal “222”. |
| 333 | When solar panel voltage is lower than 170V (220V inverter) or 270V(380V inverter), inverter shows alarm signal “333”. |
| 444 | When solar panel voltage higher than 800V, inverter shows alarm signal “444”. |
| 555 | Inverter will show “555” alarm signal if water signal last 5s. After inverter shows alarm signal “555” and stop receiving water signal, inverter will wait for 900s and restart. |
| 777 | Inverter will show “777” alarm signal if water signal last 5s. After inverter shows alarm signal “777” and stop receiving water signal, inverter will wait for 900s and restart. |
| 888 | When inverter output current is too big and may damage pump, inverter shows alarm signal “888”. If pump and cable are damaged, please choose new part. If pump have too heavy load, please choose bigger power inverter or make parameter 28.24 value up to 50. |
| 999 | When inverter output power is too big and may damage pump, inverter shows alarm signal “999”. |
| 994 | When inverter output power is too big and may damage inverter, inverter shows alarm signal “994”. |
| OH2 | When inverter internet device temperature is over 90℃, inverter keypad will show OH2. Please reduce inverter site temperature, or choose bigger power inverter. |
| SPO | When inverter UVW terminal connect pump cable and output different voltage, inverter will show SPO to protect pump. If inverter run well after user disconnect pump cable and inverter, please check if pump and cable are damaged. |
Technical Specifications:
- Input Voltage: 220V AC, Single Phase
- Output Voltage: 220V AC, Single Phase
- Power Range: 0.75KW to 7.5KW
- Application: Solar Water Pumping Systems (Irrigation, Agriculture, Rural Water Supply, etc.)
Why Choose Solar Seeker SP1?
- No need for solar experience—quick and intuitive setup
- Saves time, energy, and labor
- Reliable operation, even in variable weather
- Long service life and low maintenance costs
| Model | SP1 | SP2 | SP3 | SP4 |
| Input DC Range(V) | 170-800 | 270-800 | ||
| MPPT Range(V) | 170-800 | 270-800 | ||
| Recommended Input DC(V) | 330-800 | 330-800 | 330-800 | 540-800 |
| Input AC(V) | 220 | 220 | 220 | 380 |
| Input AC Connect | Single Phase | Single Phase | Three Phases | Three Phases |
| Output AC(V) | 220 | 220 | 220 | 380 |
| Output AC Connect | Single Phase | Three Phases | Three Phases | Three Phases |
| Power Range(kW) | 0.75 – 7.5 | 0.75 -7.5 | 0.75 – 7.5 | 0.75 – 250 |
| Recommended Configuration | Inverter power one level higher than pump power Solar panel power 2.0 times of pump power when pump power below 4kW. Solar panel power 1.3 times of pump power when pump power over 2.2kW. | |||
| Terminal For AC Input | Please connect X4 and COM terminal when inverter get AC power input. Do not input AC power and DC power (from solar panel) at the same time to inverter, unless install optional device. | |||
| Failure Signal Lamp | Terminal (TA, TB, TC, 24V, COM) can light the lamp (green running and red alarm signal) automatically and easily in control system. | |||
| Wiring | Please do not connect terminals (R S T U V W + -) directly because short circuit will damage inverter. | |||
| Start Automatically | When inverter start working automatically with weak sunshine, inverter will start and stop frequently too many times. It will reduce inverter working life. Please set parameter P28.03 to protect inverter. | |||
| Not output | When inverter shows alarm signal, fan keep running, but inverter stop outputting voltage and frequency. | |||
| G type Inverter | Inverter is G type with bigger current and longer lifespan while some other brands choose P type with less lifespan and cost. | |||
Location:Colombia
Mode:SP4011 11kW inverter
with 380V/11kW/15hp/Output three phase
Pump:7.5hp
Pv Panels:32 pcs
They were a lorentz customer and were very strict about the quality of their products, and our products eventually made them very satisfied.
Our inverters can run well with all famous pump brands such as Lorentz, Granfos, Dongyin, Leo, Mastra.
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