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Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery
Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery

Grandtech 48V Solar Storage Inverter 8kW 10kW 12kW UL1741 Split Phase 120/240V Hybrid Solar Inverter Wifi for Lithium Battery

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Product Description
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Products Description
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The SEI Series 48V Solar Storage Inverter is a high-performance, all-in-one hybrid inverter designed specifically for the US residential and light commercial market. It delivers reliable 120/240V split-phase power, seamless battery integration, and full compliance with US grid standards, making it ideal for both grid-tied and off-grid energy systems
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Specification
MODEL
SEI-8K-UP
SEI-10K-UP
SEI-12K-UP
Can Be
Set
INVERTER OUTPUT
Rated Output Power
8,800W
10,000W
12,000W
Max.Peak Power
17,600VA
20,000VA
24,000VA
Rated Output Voltage
120/240Vac,single-phase/split-phase /three-phase(parall)
√
Load Capacity of Motors
5HP
6HP
Rated AC Frequency
50/60Hz
BATTERY
Battery Type
Lead-acid/Li-ion/User-defned
√
Rated Battery Voltage
48V
Max.PV Charging Current
200A
√
Max.Mains Charging Current
120A
√
Max.Alternator Charging Current
60A
Max.Hybrid Charging Current
200A
√
PV INPUT
Num.of MPPT
2
Max.PV Array Power
5,500W+5,500W
6,600W+6,600W
Max.Input Current
25A+25A
Max.Open-circuit Voltage
550Vdc+550Vdc
MPPTOperating Voltage Range
125~450Vdc
MAINS/GENERATOR INPUT
Input Voltage Range
90~140Vac
√
Frequency Range
50/60Hz
GENERAL
Num.of Parallel
1~6 units
Dimensions
750*440*240mm(2.46*1.44*0.79ft)
Weight
42kg (92.591b)
Protection Degree
IP65
Operating Temperature Range
-25-60℃,>45℃ derated
Cooling Method
Intelligent air-cooling
Warranty
5 years
COMMUNICATION
Embedded Interfaces
RS485/CAN/USB/Dry contact
√
External Modules(optional)
Wi-Fi/GPRS
√
CERTIFICATION
UL1741&IEEE1547.1-2020,CEC,RULE21,HECO,FCC15classB,RoHs
Details Images
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US-Ready Design – Native 120/240Vac split-phase output for American homes
High Power Density – 8kW / 10kW / 12kW rated output with strong surge capability
Flexible Energy Storage – Compatible with lithium-ion and lead-acid batteries
Scalable System – Parallel up to 6 units for future expansion
Outdoor-Ready Reliability – IP65 protection for harsh environments
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Company Profile
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SICHUAN GRANDTECH NEW ENERGY TECHNOLOGY CO. LTD. is a professional supplier of solar energy storage industry. We are engaged in manufacturing and marketing of solar inverter and storage energy battery. Through vast experience, we established a list of certified manufacturers that have all the relevant ICE, UL, ISO and other certifications required as well as proven commitment to quality. Supplying high quality products is the foundation of our company. Our plant has a strict quality control system and is equipped with state-of-the-art process and production facilities.
All of our efforts during manufacturing are aimed at provided the Customer with the peace of mind that when the equipment arrives on location, it is ready to go to work, and it will perform reliably. We strive to provide our clients with high quality products, good service, timely delivery and competitive prices and look forward to cooperating with you.
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FAQ
1.Will this inverter work with my US home electrical system?
Yes. The SEI Series is built specifically for the US market and supports 120/240V split-phase output, ensuring seamless compatibility with standard American residential systems.
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2.Is this inverter approved for grid connection in the US?
Yes. It is fully compliant with UL1741, IEEE 1547.1-2020, CEC, Rule 21, HECO, and FCC Class B, meeting the interconnection requirements of most US utilities.
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3.Can I use my preferred lithium battery brand?
Absolutely. The inverter supports 48V lithium-ion, lead-acid, and user-defined batteries, with CAN/RS485 BMS communication for smooth integration with mainstream battery brands.
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4.Is the system scalable if my energy needs grow?
Yes. You can connect up to 6 units in parallel, allowing you to expand system capacity without replacing your existing inverter.
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5.Can the inverter power high-load appliances or motors?
Yes. The SEI Series delivers high peak power and supports motor loads up to 5–6HP, making it suitable for air conditioners, pumps,and other heavy-duty appliances.
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6.What happens when solar power is insufficient?
The inverter supports grid and generator charging, with a hybrid charging current of up to 200A, ensuring uninterrupted power even during low solar production or outages.
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7.Is this inverter reliable for outdoor installation?
Yes. With an IP65 rating, industrial-grade design, and a wide operating temperature range, it is built for long-term outdoor and harsh-environment use.
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8.Is this inverter suitable for residential or commercial projects?
Both. It is widely used in residential homes, farms, telecom sites, islands, and hybrid/off-grid projects, making it a versatile and proven solution.
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