Helios III series 243MCP off-grid inverter
Helios III series 243MCP off-grid inverter Helios III series 243MCP off-grid inverter Helios III series 243MCP off-grid inverter Helios III series 243MCP off-grid inverter

Helios III series 243MCP off-grid inverter

Helios III(H3) series all in one off grid inverter without battery. designed with built-in MPPT solar charge controller, AC charger and pure sine wave inverter for all-in-one convenience and versatility. is best choice for off-grid solar systems.
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Helios III(H3) series cost-effective off grid inverter, including 24Vdc/3.5Kw and 48Vdc/5.5Kw. Supports battery-free operation. Built-in MPPT solar charge controller supports solar panel input 120Vdc-450Vdc, open circuit voltage 500Vdc, maximum solar panel input power up to 5500watt, charging current up to 100Amp, remaining part can be directly supplied to the load. The AC charging part adopts the latest bi-directional charging technology, and shares the transformer with the main inverter, so that the period charging current up to 80Amp. 24Vdc/3.5Kw supports up to 2000watt AC charging, 48Vdc/5.5Kw supports up to 4000Watt AC charging. 3.5Kw/5.5Kw pure sine wave AC output, suitable for all types of loads, such as: refrigerators, air conditioners, compressors, motors, etc. Double peak power makes it support more ability to carry load. It is the best choice for solar system in home/RV/yacht/office, etc.

Battery-free operation function makes solar system less costly to build. Use solar panel to supply power directly to the load in good light conditions to complement utility power. Use RS232/RS485 to manage with BMS of lithium battery through Modbus or CAN communication protocol to make the system run more stable and to protect the lithium battery safely to make its life longer. Support WIFI or 4G to realize cell phone APP to monitor the system.

Helios III(H3) series off-grid inverter makes you set up off-grid solar system with lower cost, powerful and stable. It is your best off-grid inverter choice.

Key Features:
1. 3.5Kw/5.5Kw Design, 7Kw/11Kw Peak Power.
2. 10ms(For personal computers),20ms(for Home appliances).
3. Support LifePO4, AGM and Gel battery system.
4. CAN or Modbus for BMS.
5. Support WIFI/4G to IOS or Android app.
6. Support without battery to running off grid solar system.
7. AC charging part adopts the latest bi-directional charging technology.

Quality Control:
1. GB/T19001-2016 idt ISO9001:2015.
2. Standard high-quality components.
3. Quality inspection of the 5 processes of the assembly line.
4. 100% full solar energy and load 60 minutes aging.
5. Before packing all function check.

1.In order to prevent accidents and ensure safe and proper use of the product, please read precautions and use this equipment according to the instruction.
2.It is suggested to install a suitable fuse or breaker outside of the HeliosIII(H3) off-grid inverter.
3.Before installing and adjust the controller wiring, please break the connecting wire of the solar panel and battery, the fuse or breaker close to the battery terminal.
4.Non-professional please don’t open the HeliosIII(H3) off grid inverter, because of the high voltage inside inverter. When open by yourself without warranty.


ModelHelios III-243Helios III-485
Rated Power3500W5500W
Selectable Voltage Range170-280VAC (For Personal Computers); 90-280VAC (For Home Appliances)
Frequency Range50Hz/60Hz(Auto sensing)
AC Voltage Regulation230VAC±5%
Surge Power7000W11000W
Efficiency (Peak)Up to 93.5%
Ttansfer Time10ms (For Personal Computers); 20ms (For Home Appliances)
WaveformPure sine wave
Battery Voltage24VDC48VDC
Floating Charge Voltage27VDC54VDC
Overcharge protection33VDC63VDC
Maximum PV Array Open Circuit Voltage500VDC500VDC
Maximum PV Array Power5500W5500W
MPPT Range @ Operating Voltage120-450VDC120-450VDC
Maximum Solar Charge Current100A100A
Maximum AC Charge Current80A80A
Maximum Charge Current100A100A
Dimension (mm)400*300*115400*300*115
Net Weight (kgs)8.59
Communication InterfaceUSB/RS232
Humidity5% to 95% Relative Humidity (Non-condensing)
Operating Temperature-10℃ to 50℃
Storage Temperature-15℃ to 60℃

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