Shenzhen First Tech Co., Ltd.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 2000 pieces per month |
| Delivery Time | 30 days |
| Packaging Details | carton box |
| Charging Mode | MPPT |
| Operating Temperature | -10°C To 50°C |
| Inverter Type | hybrid solar inverter |
| Frequency | 50Hz/60Hz |
| Output Voltage | 48VDC |
| Size | 438*295*105mm |
| Brand Name | 1stess |
| Model Number | EM (PV60-500VDC) 620048L |
| Certification | CE, IEC |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 2000 pieces per month |
| Delivery Time | 30 days | Packaging Details | carton box |
| Charging Mode | MPPT | Operating Temperature | -10°C To 50°C |
| Inverter Type | hybrid solar inverter | Frequency | 50Hz/60Hz |
| Output Voltage | 48VDC | Size | 438*295*105mm |
| Brand Name | 1stess | Model Number | EM (PV60-500VDC) 620048L |
| Certification | CE, IEC | Place of Origin | China |
| High Light | 24V 48V hybrid solar inverter with MPPT ，off grid solar inverter pure sine wave ，single phase solar inverter battery EQ | ||
| 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℃) |
Background: Solar farms expansion, government renewable targets, and residential solar growth.
Reporter: Hassan Mostafa, Egypt Solar Journal
Q1: Does it support net metering configurations?
A: Yes, it can feed excess solar power to the grid if local regulations allow and with external metering setup.
Q2: How does it perform in dusty conditions like Upper Egypt?
A: Detachable dust cover and sealed electronics ensure reliable operation.
Q3: Can it communicate with central monitoring systems for solar farms?
A: Yes, via RS485 Modbus protocol, it integrates with SCADA systems.
Q4: What cooling is recommended for rooftop installations?
A: Install in shaded or well-ventilated areas. Passive cooling is sufficient under normal conditions.
Q5: Are there models suitable for small businesses and farms?
A: Yes, 5.5KW and 6.2KW models are ideal for commercial and agricultural use.
Background: Strong solar resources, government incentives, and tourism sector demand.
Reporter: Aisha Benali, Morocco Green Energy
Q1: Can it power a small hotel or guesthouse?
A: Yes, especially the 6.2KW model with high PV input and battery support.
Q2: Is French-language support available?
A: Yes, user manuals and app support French and Arabic.
Q3: How does it handle intermittent grid in rural areas?
A: Fast transfer and multiple priority modes ensure uninterrupted power.
Q4: What is the ROI for a typical solar system in Morocco?
A: With high solar irradiation, payback can be within 4–6 years.
Q5: Does it work with Moroccan lithium battery suppliers?
A: Yes, RS485 communication supports most BMS protocols used locally.
Background: Rural electrification, mini-grid development, and community solar projects.
Reporter: John Mwamba, Tanzania Renewable Digest
Q1: Can it be used in community mini-grids?
A: Yes, it can serve as the core inverter for AC-coupled mini-grids.
Q2: How user-friendly is it for village technicians?
A: Simple wiring, clear labels, and robust design suit basic technical skill levels.
Q3: What battery type is most cost-effective for Tanzania?
A: LiFePO4 offers best long-term value, but lead-acid is also supported.
Q4: Can it handle powering water pumps for agriculture?
A: Yes, surge power supports pump motor starting.
Q5: Is there local assembly or distribution?
A: We work with local distributors in Dar es Salaam and Arusha for supply and support.
Company Details
Year Established:
2017
Total Annual:
15000000-16000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
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