SPH3K-24/48-SP 3.0kW Split-Phase olar off grid inverter
- The SPH3K-24/48-SP is a multifunctional off-grid inverter designed by APsolway specifically for 120/240V±5% split-phase power systems. This device supports not only 120Vac single-phase output but also 240Vac split-phase output, perfectly meeting the power requirements of North America and other regions utilizing split-phase grids. With a rated output power of 3.0kW and a peak power capacity of 4.5kVA, it generates high-quality pure sine wave electricity, thereby protecting various sensitive electronic devices from interference.
- In terms of energy harvesting and management, this model demonstrates exceptional flexibility. It features a built-in MPPT controller with 99% efficiency, supporting a maximum PV array input of 3600W and operating within an MPPT voltage range of 70–280Vdc. A key advantage of the SPH3K-24/48-SP is its battery-free operation mode; even without an installed battery, the system can directly utilize PV energy to power connected loads. The device is compatible with both 24V and 48V battery systems—supporting both lithium-ion and lead-acid batteries—and integrates a lithium battery activation function, enabling deep communication with the battery’s BMS via an RS485 interface.
Product Parameters
| MODEL | SPH3K-24/48-SP |
| PV Array | |
| Max.PV Array Power | 3600W |
| MaxPVArray Open-Circuit Voltage | 300/500VDC |
| Start-up Voltage | 60/100VDC |
| MPPT Operating Voltage Range | 70-280/120-450VDC |
| Nominal Input Voltage | 250/360VDC |
| Max. Input Current MPPT | 30/18A |
| MPPT max Efficiency | 99% |
| Battery | |
| Battery Type | Li-ion/Lead-acid |
| Nominal Battery Voltage | 24/48V |
| Battery Voltage Range | 21-29/41-58V |
| Max.AC Charging Current | 40A |
| Max.PV Charging Current | 80A |
| Max.Continuous Discharging Current | 100/80A |
| AC Input | |
| Nominal Voltage | 120Vac±5%/240Vac±5% |
| Voltage Range | 180-280Vac |
| Frequency | 50/60Hz(Auto following) |
| Max.Input Current | 40A |
| AC Output | |
| Nominal Voltage | 120Vac±5%/240Vac±5% |
| Output Voltage Waveform | Pure Sine Wave |
| Rated Output Power | 3000VA/3000W |
| Peak Output Power | 4500VA |
| Nominal Output Frequency | 50/60Hz |
| Transfer Time | 10ms |
| Efficiency (peak)PV to INV | 96.5% |
| Efficiency (peak)BAT to INV | 93.0% |
| Protection | |
| Over Temperature Protection | Yes |
| Overload Protection | 3s@≥150%load;10s@110%~150%load |
| General Data | |
| Operating Temperature Range | -10–+50℃ |
| Relative Humidity | 0~95% |
| Max.Operating Altitude | <4000m |
| Cooling Method | Intelligent Fan cooling |
| Display | LED+LCD |
| Communication with BMS | RS485 |
| Communication with Cloud | WIFI/4G |
| Degree of Protection | IP43 |
| Warranty | 2years |
| Weight(kg) | 9 |
| Dimension(W”H”Dmm) | 373*105*300 |
| Mounting Method | Wall Mounted |
Product specifications are subject to change without further notice.
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