Easun Power 3.6KW Solar Inverter 120A MPPT Solar Charge Controller With Wifi
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SMT 4K 24V Hybrid Solar Inverter
The SMT 4K 24V hybrid solar inverter is designed for practical 24V solar power systems. It combines solar charging, battery backup, AC charging and pure sine wave output in one compact unit.
With AC charging time control, CT anti-backflow support, multi-brand BMS communication and WiFi monitoring, it gives users more control over how energy is charged, stored, used and monitored.
- 4KW 24V Hybrid Inverter
- Pure Sine Wave Output
- MPPT Solar Charging
- AC Charging Time Control
- CT Anti-Backflow Support
- BMS Communication
- WiFi Monitoring
- Generator Input Support
All-in-One 24V Power Solution
Connect solar panels, AC input, generator, battery storage and home loads through one compact inverter. It helps simplify wiring, save installation space and make your 24V solar system easier to manage.
Flexible Energy Modes
Choose how the system charges and powers your loads based on solar input, AC input, battery status and daily power needs. It supports flexible charging and output priority settings for different usage scenarios.
LCD Display & RS485 Monitoring
The LCD screen shows key system information including grid, PV, battery, load and fault code status. RS485 communication also helps with compatible monitoring and battery communication systems.
AC Charging Time Control
Decide when AC input is allowed to charge your battery. For example, the system can be set to charge from 23:00 to 06:00 and stop AC charging during other periods.
- Control AC charging time
- Avoid unwanted AC charging
- Better match off-peak electricity habits
CT Anti-Backflow Support
With a CT sensor connected, the system can help detect power flow and reduce unwanted reverse power flow. This is useful for self-consumption systems where energy should be used locally.
- Built-in CT port
- Helps prevent unwanted reverse power flow
- Supports local energy self-consumption
Multi-Brand BMS Communication
The inverter supports communication with selected lithium battery BMS systems through CAN / RS485. This helps improve charging safety, battery protection and system stability.
- SOC visibility
- Voltage and current data
- Battery protection status
WiFi Mobile Monitoring
Check system status from your phone, including PV input, battery condition, load power and system operation. WiFi monitoring makes daily use and troubleshooting more convenient.
Designed for Real-World 24V Energy Systems
Suitable for home backup, solar self-consumption, cabin / RV power, workshops, farms and small independent power systems.
Compact Wall-Mounted Design
The slim wall-mounted design saves space and keeps the system layout clean. It is suitable for utility rooms, garages, cabins, workshops and compact solar installation areas.
- 423 mm height
- 290 mm width
- 100 mm depth
Quick Specifications
Key charging and solar input specifications for the ISolar-SMT-4K-WiFi inverter.
| Model | ISolar-SMT-4K-WiFi |
|---|---|
| PV Charging Mode | MPPT |
| MAX. PV Input Power | 5000W |
| MPPT Tracking Range | 60~500Vdc |
| Best Voltage | 300~400V |
| MAX. PV Input Voltage | 500Vdc |
| PV Max Input Current | 15A |
| MAX. PV Charging Current | 120A |
| MAX. AC Charging Current | 100A |
| MAX. Charging Current | 120A |
Technical Datasheet
Full technical parameters for the ISolar-SMT-4K-24V-WiFi hybrid solar inverter.
| Model | ISolar-SMT-4K-24V-WiFi | |
|---|---|---|
| Input | Input Sources | L+N+PE |
| Rated Input Voltage | 220/230/240VAC | |
| Voltage Range | 90-280VAC±3V (APL Mode) / 170-280VAC±3V (UPS Mode) | |
| Frequency | 50Hz/60Hz (Auto Adaptive) | |
| Output | Rated Power - Battery Inverter | 3600W |
| Rated Power - Photovoltaic Inverter | 3600W | |
| Output Voltage | 220/230/240VAC±5% | |
| Output Frequency | 50/60Hz±0.1% | |
| Waveform | Pure Sine Wave | |
| Transfer Time Adjustable | Computer UPS Mode: 10ms / Appliance APL Mode: 20ms | |
| Peak Power | 7200VA | |
| Overload Capacity | Battery Mode: 11s @105%~150% Load; 2s @150%~200% Load; 400ms @ >200% Load | |
| Battery | Battery Voltage | 24Vdc |
| Constant Charging Voltage Adjustable | 28.2Vdc | |
| Float Charging Voltage Adjustable | 27Vdc | |
| Chargers | PV Charging Mode | MPPT |
| MAX. PV Input Power | 5000W | |
| MPPT Tracking Range | 60~500Vdc | |
| Best Voltage | 300~400V | |
| MAX. PV Input Voltage | 500Vdc | |
| PV Max Input Current | 15A | |
| MAX. PV Charging Current | 120A | |
| MAX. AC Charging Current | 100A | |
| MAX. Charging Current | 120A | |
| Display | LCD Interface | Can display running mode, load, input, output, etc. |
| Interface | RS232 | Baud Rate 2400 |
| Extended Socket Communication Interface | Lithium Battery BMS Communication Card / WiFi Card | |
| Environment | Operating Temperature | -10~50℃ |
| Humidity | 20%~95% Non-condensing | |
| Storage Temperature | -15~60℃ | |
| Altitude | Altitude not over 1000m; derating over 1000m; max 4000m; refer to IEC62040 | |
| Noise | ≤50dB | |
| Standards | Standards and Certification | EN-IEC 60335-1, EN IEC 60335-2-29, IEC 62109-1 |
Frequently Asked Questions
Common questions about the SMT 4K 24V hybrid solar inverter, battery compatibility, AC charging control and installation.
What does AC charging time control mean?
AC charging time control allows the inverter to charge the battery from AC input only during selected time periods.
For example, users can set AC charging from 23:00 to 06:00, so the battery charges overnight and stops AC charging during other periods.
Can solar charging time be controlled?
Solar charging is mainly based on sunlight availability and system settings.
The time control function mainly applies to AC charging. When sunlight is available, PV charging works according to the inverter settings and battery condition.
What is CT anti-backflow support?
CT anti-backflow support helps detect power flow and reduce unwanted reverse power flow.
It is useful for self-consumption systems where solar energy should be used by local loads or stored in batteries instead of flowing in the wrong direction.
Does CT anti-backflow mean this is a certified grid-tie inverter?
No. This inverter is mainly positioned for off-grid and self-consumption applications.
CT anti-backflow support helps manage power flow, but it should not be marketed as certified grid-tie export approval.
What is BMS communication?
BMS communication allows the inverter to exchange battery information with compatible lithium battery systems through CAN / RS485 communication.
This helps improve charging safety, battery protection and system stability.
Which lithium batteries are supported?
The inverter supports selected lithium battery systems through CAN / RS485 communication.
Please confirm the exact battery brand and communication protocol before purchase.
Can it work with a generator?
Yes. The inverter can work with compatible AC input sources such as utility power or generator input, depending on installation and system settings.
Can the inverter work without WiFi?
Yes. WiFi is mainly for monitoring convenience.
The inverter can still operate through local LCD display and button settings.
Is this inverter suitable for home backup?
Yes. It is suitable for 24V home backup systems, solar self-consumption systems, cabins, RVs, workshops, farms and other small off-grid energy setups.
Is professional installation recommended?
Yes. Professional installation is recommended because the system involves AC wiring, DC battery wiring and solar input wiring.
User Manual
Download the user manual for installation guidance, parameter settings, wiring instructions and detailed operation information.
Download User Manual```
