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On/Off Grid Hybrid Solar Inverter

PH1800 Plus Series High Frequency On/Off Grid Hybrid Solar Inverter (2-5.5KW)

PH1800 Plus series hybrid solar inverter, it can realize self-consumption and feed-in to the grid from solar energy with best solution according to your setting. During the daytime solar power can run your home appliances and if there is extra solar power it will feed-in to the grid or you can choose to save them on the battery to backup when power failure or nighttime.


  • Rated Power 2KW-5.5KW
  • Pure sine wave output
  • Self-consumption and Feed-in to the grid
  • Programmable supply priority for PV, Battery or Grid
  • User-adjustable battery charging current suits different types of batteries
  • Programmable multiple operation modes: Grid-tie, off-grid and grid-tie with backup
  • Multiple communication for USB, RS-485, Modbus
  • Monitoring software & Wifi Kit for real-time status display and control
  • Parallel operation up to 3 units

Pure Sine Wave Output

The electrical waveform output of PH1800 is a pure sine wave, which has the same quality as utility and/or domestic power. This type of waveform is suitable for most all electrical devices, appliances and tools. This pure sine wave unit provides more capabilities than modified sine wave inverters, because it is a cleaner form of power. The pure sine wave also effectively reduces the noise produced while using appliances.

Wifi communication

you can download this app on your cellphone and monitor the whole system, you will know know how much electricity the system generate and sell to utility.

3-5.5KW Parallel function

Customer can use 2pcs or 3 pcs inverters to expand the system capacity. Maximum 3pcs parallel to single phase or three phase.Parallel kit picture as below:

Charging algorithm

3-Step (Flooded Battery, AGM/Gel/Lithium Battery),4-Step(LI)

USB/RS485 monitoring

You can connect inverter with PC with communication cable and monitor the inverter woking status and all inverter parameter, you even can set these parameters such as AC voltage, battery voltage, charge current, working mode etc

Easy to read all working modes and parameters in LCD

Sell state

Note:*Sell mode: The system generates electricity when the sun shines, supplying power to your home and sending any excess power back tothe grid.

Match load state

Note: DC power produced from your solar array is converted by the inverter into AC power, which is then sent to your main electrical panel to be used by your household appliances. Any excess power generated is not sold back to thegrid, but stored in battery.

Charge state

PV energy and grid can charge batteries.

Bypass state

Error are caused by inside circuit error or external reasons such as over temperature, output short circuited and so on.

Off-Grid state

The inverter will provide output power from battery and PV power.

PH1800 series intelligent working mode

Grid-Tie with Battery Back-UpGrid tie with backup system is intelligent to run your house, it generates electricity when the sun is shining, and supplies power to your house while selling any excess power back to the utility to reduce your electric bill.However, the PV energy system continues to operate during a grid outage. The batteries provide quiet, uninterrupted back-up power for loads such as refrigerators, lights, pumps, and computers, while your PV array continues to produce power and charge the batteries during the day. When the grid is restored, the inverter/chargers help recharge the batteries to their full state of charge while the grid powers all AC loads. Once the batteries are recharged, the system returns to normal operation.






MODELPH18-2024 PlusPH18-3024 PlusPH18-3048 PlusPH18-4048 PlusPH18-5048 PlusPH18-5548 Plus
Nominal Battery System Voltage24VDC48VDC
Rated Power2000W3000W3000W4000W5000W5500W
Surge Power4000W6000W6000W8000W10000W11000W
WaveformPure Sine Wave
AC Voltage Regulation (Batt.Mode)220VAC-240VAC(setting)
Electric Current8.7A13A17.4A21.7A23.9A
Inverter Efficiency(Peak)93%
Transfer Time10ms(For for Personal Computers)  20ms( For Other Home Appliance)
Selectable Voltage Range170~280VAC(For Personal Computers)、90~280VAC(For Home Appliances)、184~253VAC(VDE4105)
Frequency Range50Hz/60Hz (Auto Sensing)
Normal Voltage24VDC48VDC
Floating Charge Voltage27.4VDC54.8VDC
Overcharge Protection31VDC60VDC
Maximum PV Array Open Circuit Voltage145VDC
PV Array MPPT Voltage Range30∽130VDC64∽130VDC
Standby Power Consumption2W
PV Array MPPT Voltage Range2000W4000W
Maximum PV Array80A
Maximum Efficiency98%
Maximum AC Charge Current60A
Maximum Charge Current140A
Machine Dimensions (W*H*D)272*355*100 mm297.5*468*125 mm
Net Weight(Kg)7.414
Package Dimensions(W*H*D)485*393*251638*395*241
Gross Weight(Kg)9.516.4
Humidity5% to 95% Relative Humidity (Non-condensing)
Operating Temperature0°C ~55°C
Storage Temperature-15°C ~60°C

*Products specifications are subject to change without further notice

Software and Instruction Manual Downloads>>>

  • Brochure: PH1800PLUS.pdf Download
  • Manual: 420-00294-01 PH18 1-5K on-off-grid MPPT T1.1.pdf Download
  • Manual: 420-00313-00 PH18 3-5KW on-off-grid MPPT T1.0.pdf Download
  • Manual: 420-00321-00 PH18 3KW 120VAC T1.0.pdf Download
  • Manual: 420-00332-00 PH18 3-5KW on-off-grid MPPT T1.pdf Download
  • Manual: 420-00333-00 PH18 3-5KW VHM on-off-grid MPPT T1.0..pdf Download
  • Leaflet: PH1800 PLUS-.pdf Download
  • Certificates: PH18-SAA Certificate of 4k and 5k.pdf Download
  • Certificates: PH18-SAA Certificate of 5k.pdf Download