4 kW Three Phase Solar Pump Inverter, AC 220V

$433.69

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This 4kW three-phase 220V solar water pump inverter integrates the MPPT algorithm to lock onto the optimal power point of photovoltaic cells (250V-400V) with >99% efficiency. The solar VFD supports all-weather auto/manual operation, adjusting work schedules with sunrise and sunset. The output frequency is 0-50/60Hz adjustable, with operating temp. -10°C to 40°C (derate at 40°C-50°C) and storage temp. -20°C to 60°C. A removable DC fan of the pump inverter ensures quiet, stable operation and ease of maintenance. 3-phase solar pump controller suitable for agricultural irrigation, domestic water supply, and desertification control.

Free shipping

Delivery date: 6-12 days

SKU: GK330-SP1-004

Input Voltage *

220V AC at 3-phase

increase decrease

Overview
Specs
Manual
FAQ
Reviews

Overview

The 4kW solar pumping inverter, compatible with DC voltages from 120V to 400V, features forced air cooling performance and an IP20 protection rating. It is commonly used for urban water supply, sewage purification, and agricultural irrigation. The solar water pumping system adopts RS485 communication, and there is no condensation when the humidity is less than 95%RH.

Features

High-Efficiency MPPT Control: This solar pump system utilizes advanced MPPT technology to track the optimal operating point of solar panels in real time, optimizing both voltage and current for system efficiency of up to 98%.
Smart Sleep Mode: Automatically adjusts its operation based on sunlight intensity. The solar pumping inverter enters sleep mode during low sunlight to save energy and quickly resumes operation when sunlight increases, maximizing solar resource utilization.
Water Level Adaptive Control: Integrated with water level sensing, the 4kW VFD solar inverter automatically stops when the water level is high to prevent overflow and restarts when the water level is low to avoid dry running, enabling unattended automated management.
Intelligent User Interface: The 3-phase MPPT VFD solar pump inverter features an intuitive control panel with support for water level detection and smart control, ensuring user-friendly and safe operation while preventing equipment damage.
Fault Self-Protection: Built-in multiple protection mechanisms immediately activate self-protection in case of faults, ensuring stable system operation and enhancing overall system reliability.
AC Bypass Backup: Includes an integrated AC bypass function. During insufficient or no sunlight periods, the solar pump controller automatically switches to an AC power supply, ensuring uninterrupted water pumping.

Details

Air Vents

The well-performed 4 kW 220V solar water pumping inverter has high-density ventilation ports for excellent cooling, ensuring stable operation in high-temperature environments. With smart start-stop control, the powerful DC heat sink operates quietly, adeptly reducing the heat generated during inverter use. The independent air duct design forms a sealed space, preventing dust and moisture from entering the circuit board area.

Digital Keypad

The digital keypad of the 4 kW PV pump inverter is clear and easy to use, directly controlling the start, stop, and acceleration functions. Users can easily set the inverter's parameters and adjust the output frequency to control the pump speed, meeting various operational needs effortlessly. The intuitive design of the digital keypad enhances the efficiency and convenience of the solar pump system's operation.

Rugged Casing

The top-performing and advanced 4kW solar variable frequency drive for pumps is compact, and the sturdy shell has good anti-fall, flame retardant, anti-aging, corrosion-resistant facts, effective insulation against moisture and dust, stable operation, reliability, and safety. It not only protects the circuit and electronic parts inside the equipment but also ensures the PV pump inverter's safety, stability, and reliability, capably extending the product life.

Applications

Agricultural Irrigation

Industrial Applications

Farm Livestock

Pool Water Supply

Solar Pump Inverter Working System

solar pump inverter wiring application

Specs

GK330

Series inverter (for photovoltaic applications)

Voltage range:

SP1S: DC 250~ 400V to 1-phase AC 220V
SP1: DC 250~ 400V to 3-phase AC 220V
SP3: DC 350~ 750V to 3-phase AC 380V

4D0

Adaptable motor power:

4D0 (4KW)

Model	SP1-004
Rated Power	4 kW
Min. DC Voltage	120V
Max. DC Voltage	400V
Recommended MPPT Range	250V~400V
AC Output	AC 3 Phase 220V
Output Current	13A
Output Frequency	0~50/60Hz
Power Factor	＞0.99
Communication Mode	RS485 Communication
Protection Class	IP20
Ambient Temperature	-10℃~40℃ (ambient temperature at 40℃~50℃, please keep derated use)
Storage Temperature	-20℃~60℃
Humidity	Smaller than 95% RH, non-condensation
Cooling	Forced Air Cooling
Altitude	Lower than 1000m
Humidity	Less than 95% RH, without condensing
Vibration	Less than 5.9m/s^² (0.6g)
Size ( WHD)	162250191(mm)
Installation Size (WHφ)	148238φ5.5(mm)
Gross Weight	5kg

Solar inverter appearance and installing dimension (mm)

Solar pump inverter installing dimension

Manual

Solar Pump Inverter Manual

FAQ

What are the considerations for installing a solar pump inverter?

Ventilation Conditions: When installing indoors, ensure proper ventilation or install a ventilation system to allow effective heat dissipation from the pump inverter. In high-temperature environments (above 40°C but not exceeding 50°C), additional cooling measures, such as removing the inverter cover or opening the cabinet front door, are recommended. However, always ensure safety to avoid electrical shock risks.
Temperature Range: The solar water pumping system is suitable for environments with a temperature range of -10°C to 40°C. Operating outside this range may affect the inverter’s performance and lifespan. In hot environments, special attention should be given to cooling, and in cold environments, measures to prevent condensation should be taken.
Humidity and Moisture Protection: The installation site should maintain humidity below 90% to avoid short circuits or corrosion within the solar pumping inverter. Ensure the site is free of frost, as freezing conditions can damage the equipment.
Lighting Conditions: Avoid direct sunlight exposure to the water pump inverter. Prolonged exposure can increase the device's temperature and affect performance. Ensure the inverter is shielded from excessive heat sources.
Safety Distance: Keep the solar VFD away from flammable, explosive materials, and corrosive gases or liquids to ensure a safe and hazard-free installation environment. Ensure the area around the inverter is free of dust, fibers, or metal particles that could enter the device and cause malfunctions.
Vibration Protection: Install the solar pump controller in a location where there is no strong vibration, with vibration amplitude not exceeding 0.6G. Pay special attention to avoiding installation near stamping machines, vibrating equipment, or other sources of vibration that could damage the inverter over time.
Electromagnetic Compatibility: Install the water pump solar inverter away from electromagnetic interference sources, such as high-power radio transmitters or high-frequency welding machines, to prevent interference that could affect the normal operation of the inverter.

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Existing reviews

Smart and stable for daily pumping.

I've been running this 4kW solar pump inverter on my irrigation setup for a few weeks now. It tracks sunlight well and adjusts output smoothly throughout the day. The fan’s quiet, and I like that it’s removable for easy cleaning. Just make sure it’s well-ventilated.

From: Chapman Parker | Date: 4/21/2025 12:43 AM

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