Shenzhen First Tech Co., Ltd.
| Output Voltage | 48VDC |
| Packaging Details | carton box |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 2000 pieces per month |
| Operating Temperature | -10°C To 50°C |
| Delivery Time | 30 days |
| Frequency | 50Hz/60Hz |
| Size | 438*295*105mm |
| Inverter Type | hybrid solar inverter |
| Charging Mode | MPPT |
| Model Number | EM (PV60-500VDC) 620048L |
| Brand Name | 1stess |
| Certification | CE, IEC |
| Place of Origin | China |
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Product Specification
| Output Voltage | 48VDC | Packaging Details | carton box |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 2000 pieces per month |
| Operating Temperature | -10°C To 50°C | Delivery Time | 30 days |
| Frequency | 50Hz/60Hz | Size | 438*295*105mm |
| Inverter Type | hybrid solar inverter | Charging Mode | MPPT |
| Model Number | EM (PV60-500VDC) 620048L | Brand Name | 1stess |
| Certification | CE, IEC | Place of Origin | China |
| High Light | Off Grid Hybrid Solar Inverter with battery charging ，Off Grid Hybrid Solar Inverter for load management ，Off Grid Hybrid Solar Inverter for solar power | ||
Our Off Grid Hybrid Solar Inverter is designed for residential and commercial solar energy storage applications, providing stable power conversion, intelligent battery charging, and flexible energy management.
Supporting LiFePO4 and lead-acid batteries, this high-efficiency hybrid inverter integrates solar charger, AC charger, and inverter functions into one compact solution. With PF1.0 performance, pure sine wave output, advanced MPPT technology, and RS485 battery communication, it delivers reliable power for homes, backup systems, and off-grid solar installations.
Equipped with RS485 communication, the inverter enables intelligent interaction with LiFePO4 battery BMS systems, ensuring safe charging, optimized battery performance, and longer battery lifespan.
The inverter supports lithium battery wake-up through PV solar input or utility power, helping recover deeply discharged batteries and reducing unnecessary battery replacement costs.
Designed for flexible off-grid applications, the inverter can operate without battery connection when connected to PV or grid power, helping reduce initial installation costs.
Provides clean and stable AC power suitable for various household and industrial loads, including:
With a power factor of 1.0, the inverter delivers full rated output power without derating, improving system efficiency and maximizing usable energy.
The built-in MPPT controller supports:
Compatible with different solar panel configurations for flexible system design.
Multiple operation priority modes available:
Users can customize energy usage according to electricity cost, solar availability, and backup requirements.
Integrated CC/CV charging technology provides:
Improving battery reliability and extending service life.
Optional WiFi monitoring enables users to check:
via smartphone or PC.
| Feature | Specification |
|---|---|
| Output Waveform | Pure Sine Wave |
| Power Factor | PF1.0 |
| Battery Type | LiFePO4 / Lead Acid |
| Battery Communication | RS485 BMS Communication |
| Solar MPPT Range | 60Vdc-500Vdc |
| Solar Charging Current | 60A-120A |
| PV Efficiency | Up to 96% |
| AC Input Voltage | 90-280Vac |
| Transfer Time | 10ms (PC Mode), 20ms (Appliance Mode) |
| Overload Protection | 110-140% load for 10s; ≥140% load for 5s |
| Operating Temperature | -10°C to +50°C |
| Humidity | 5-95% RH non-condensing |
| Communication Ports | RS232 + RS485 |
Ideal for:
Suitable for:
Designed for areas with:
✔ High-efficiency solar conversion up to 96%
✔ Supports LiFePO4 battery BMS communication
✔ Pure sine wave output for sensitive loads
✔ Flexible PV + AC dual charging
✔ Battery-free operation capability
✔ Multiple energy priority modes
✔ Wide voltage input range
✔ Optional WiFi monitoring
✔ Suitable for off-grid and backup power applications
| Specification | Model 1 | Model 2 | Model 3 |
|---|---|---|---|
| Place of Origin | China | China | China |
| Mounting Method | Wall Bracket | Wall Bracket | Wall Bracket |
| Nominal Battery Voltage (V) | 24VDC | 48VDC | 48VDC |
| Lithium Battery Activation | YES (By PV or Utility) | YES (By PV or Utility) | YES (By PV or Utility) |
| Nominal Voltage | 230VAC | 230VAC | 230VAC |
| Lithium Battery Communication | YES (RS485) | YES (RS485) | YES (RS485) |
| Frequency | 50/60Hz | 50/60Hz | 50/60Hz |
| Waveform | Pure Sine wave | Pure Sine wave | Pure Sine wave |
| Solar Charger Type | MPPT | MPPT | MPPT |
| Communication Interface | RS232+RS485 | RS232+RS485 | RS232+RS485 |
| PV Array MPPT Voltage Range | 60VDC~500VDC | 60VDC~500VDC | 60VDC~500VDC |
| Surge Power | 7000VA | 11000VA | 1240VA |
| Size | 358*295*100mm | 438*295*105mm | 438*295*105mm |
| Weight | 7kg | 9kg | 9kg |
| Operating Temperature Range | -10℃ to 50℃ | -10℃ to 50℃ | -10℃ to 50℃ |
Company Details
Year Established:
2017
Total Annual:
15000000-16000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
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