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.