Low Frequency Power Split Phase Inverters

Low Frequency Power Split Phase Inverters RI-LF-SP

RI-LF-SP series is a low frequency pure sine wave split phase inverter with capacity from 1KW-6KW, DC 12V/24V/48V. It’s applicable to 110VAC/120VAC markets demands, which matches AC 110VAC/120V single phase, or two phase 110VAC/120V 120V/240V;

In LCD display, you can set output voltage, frequency, charging voltage, charging current to design best use based on different loads applications; meanwhile, you can also connect extra solar charger controller to build a solar home system, take use of sunshine freely and save electricity bills.

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  • Pure sine wave output, split phase HOT1+ N + HOT2 available, 120VAC/220VAC.
  • MFD (multi-function display) & Friendly user interface
  • 3 Steps optimizing charge for battery pack.
  • Overload and short-circuit protection.
  • Settable: charging/charging current, utility/Battery priority, utility input wide/narrow range.
  • Inverter voltage can be set to 100V/110V/120V
  • Inverter frequency can be set to 50/60Hz.


  • Home and office appliances
  • TV
  • Refrigerator
  • Fan
  • Lights
  • Computer
  • Other appliances


Inverter Output
Rated power(W)1KW1.5KW2KW3KW4KW5KW6KW
Power Factor1
Wave formPure sine wave/ Same as input waveform (bypass mode)
Output voltage RMS100V/110V/120VAC(200V/220V/240VAC)±10%
Output frequency50HZ or 60HZ (±0.3HZ) (can be set)
Overload protectionBreaker + software protection
Output short circuitBreaker + software protection
Inverter efficiency(peak)>80%
Overload100%<Load<110% (alarm 5min then stop output and fault code 07); 110%<Load<125% (alarm 60s then stop output and fault code 07); Load>125% (alarm 10s then stop output and fault code 07)
Surge rating3000VA4500VA6000VA9000VA12000VA15000VA18000VA
Capable of starting electric motor1P1P1.5P1.5P2P3P
Battery voltage12VDC/24VDC24VDC/48VDC48VDC
Minimum start voltage11VDC/22VDC/44VDC
Low battery voltage cut off(low voltage fault code04)10/10.5/11V for 12V model(*2 for 24DVC / *4 for 48VDC)
Low battery voltage alarmAdd 0.5V/battery: (low battery alarm one second one time) (10/10.5/11V) + 0.5Vdc for 12V model(*2 for 24DVC / *4 for 48VDC)
High battery voltage alarmAdd +1V/battery: (high voltage one second one time/after 30s fault 03) (13.8-14.5V) + 1V for 12V model(*2 for 24DVC / *4 for 48VDC)
Save modeLoad≤40W(110V)/80W(220V)
AC Input Mode
Input waveformPure sine wave
Nominal input voltage220Vac / 230Vac / 240Vac
Max input voltage270Vac MAX
Input frequency50HZ/60HZ (auto sensing)
Efficiency(AC mode)>95% (load, full battery)
Transfer time AC TO DC15ms(max)
Transfer time DC TO AC15ms(max)
Charge Mode
Boost Voltage14.1V(Default) Range of adjustment 13.8-14.5V/*2 for 24VDC/*4 for 48VDC (Regulation step 0.1V)
Float Voltage13.5V(default) Range of adjustment 13.5-13.7V/*2 for 24VDC/*4 for 48VDC (Regulation step 0.1V)
Min charge current 10A. change by every 5A.
Dimensions (W*H*D)277*196*466mm277*186*621mm
Ship Dimensions (W*H*D)376*306*592mm376*296*747mm
WarrantyOne year(standard),2years optional(IP20)

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