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24V 4kW Off-Grid Solar Inverter for Stand-Alone PV Electricity System in Homes
- 24V, SF 4000W Solar Storage Inverter
JOEYOUNG provides stable power output off-grid inverters with low noise and protetcion systems which works during electrical operation. JOEYOUNG provides you with high quality AC power supply and ensure you a good experience while using our products.
- Monitoring platform for easy maintenance
- Built in high-efficiency cooling system reduces noise
- Modular design supports expansion and upgrading to meet more needs
- Supporting medium power loads reliable guarantee as electricity support
- Cost-effective and ensured high quality by international tests
- Dual AC outputs for smart load management
Equipped with dual AC outputs, allowing for intelligent load management. This feature ensures efficient distribution of power between different loads, optimizing energy usage and enhancing system performance.
- Wide PV input voltage range 30Vdc-500Vdc
Supports a wide PV input voltage range from 30Vdc to 500Vdc, accommodating various solar panel configurations. This flexibility enables users to design systems that best meet their specific energy needs and conditions.
- Compatible with lithium lead-acid and GEL batteries
Designed for compatibility with lithium, lead-acid, and GEL batteries. This versatility ensures users can select the most suitable battery type for their application, enhancing system reliability and performance.
| Model | SF 4000 | User- Settable |
|---|---|---|
| Nominal Battery Voltage | 24Vdc | |
| Battery Type | Lithium LiFePO4/Lead-Acid/Flood /User Defined | ✓ |
| AC INPUT | ||
| Nominal AC Input Voltage/Waveform | 230Vac/Sinusoidal (Utility or Generator) | |
| AC Input Range | 90~280Vac (Appliances)；170Vac~280Vac (UPS) | ✓ |
| Nominal Input Frequency | 50/60Hz (Auto Detection) | ✓ |
| AC Input Frequency Range | 40~65±1Hz (>42 or <63±1Hz Comeback) | |
| Max. Bypass Current | 30Amp | |
| Output Short Circuit Protection | Circuit Breaker | |
| Transfer Time | 10ms Typical (UPS); 20ms Typical (Appliances) | |
| AC CHARGER | ||
| Charging Algorithm | 3-Step | |
| Max. AC Charging Current | 100Amp (@VI/P=230Vac) | ✓ |
| Bulk Charging Voltage | 29.2Vdc (AGM/Gel Battery);28.2Vdc (Flooded Battery) | ✓ |
| Floating Charging Voltage | 27Vdc | ✓ |
| Max. Hybrid Charging Current (Solar & Utility) | 120Amp | ✓ |
| PV INPUT | ||
| Num. of Independent MPPT Tracker | 1 | |
| MPPT Input Current | 1*22Amp | |
| Max. PV Array Power | 6000W | |
| Max. Solar Charge Current | 120Amp | ✓ |
| PV Array MPPT Voltage Range | 60~450Vdc | |
| Max. PV Array Open Circuit Voltage | 500Vdc | |
| MPPT Tracking Efficiency | 99.9% | |
| INVERTER OUTPUT | ||
| Num. of Output Ports (Main & Second Output) | 2 | |
| Rated Output Power of Main/Second Output*【1】 | 4000W/4000W | |
| Max. Output Current of Main/Second Output | 17.4A/17.4A | |
| Surge Capacity | 8000VA/8000W for 5 Seconds | |
| Output Voltage Waveform | Pure Sine Wave | |
| Overload Protection | 5s@150% Load; 10min@110%~150% Load | |
| Output Voltage | 220/230/240 Vac ± 5% | |
| Output Frequency | 50Hz/60Hz ±1 Hz | |
| Peak Efficiency | 94% | |
| Low Voltage Cut-off Voltage | 21Vdc | ✓ |
| High Voltage Cut-off Voltage | 33Vdc | |
| Cold Start Voltage (When Only Connect with Battery) | 23Vdc | |
| No Load Power Consumption | <35W@24Vdc | |
| Parallel Capacity | NO | |
| GENERAL | ||
| Operating Temperature Range | -10°C~55°C | |
| Storage Temperature | -15°C~60°C | |
| Humidity | 5% to 95% Relative Humidity (Non-Condensing) | |
| Altitude | <2000m | |
| Noise | ≤60dB | |
| Protection Degree | IP21,Indoor OnIy | |
| Cooling Method | Intelligent Fan | |
| Dimensions(W*H*D) | 415*309*110 mm | |
| Weight | 9.5 KG | |
| Warranty | 2 Years | |
| COMMUNICATION | ||
| Embedded Interface | RS232*1/RS485*1/Dry Connection | |
| Work with Bluetooth Monitoring Dongle (Optional) | YES, by RS232 | |
| Work with Lithium Battery BMS | YES, by RS485 | |
| CERTIFICATION | ||
| Certification/Standard | CE(IEC61000,IEC62109) ; IEC61683,IEC60068 ; RoHS | |
The 4000W inverter is suitable for small shops, medium loads, and industrial grade small equipment applications, ensuring stable power supply.
4000W inverter is recommended to be paired with 1200W-3000W solar panels to ensure optimal system performance.
Joeyoung focuses on inverter research and manufacturing during the production process of photovoltaic inverters. After optimizing the cooling system, the inverter can operate stably within the range of -10 ° C to 55 ° C.
Additional Resources About Solar Inverters
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