Pure Sine Wave Solar Inverter Off Grid 48V Single Phase Hybrid 8.5kw 11kw MPPT With RS485

Price Negotiable
Price: To be negotiated
MOQ: 1 piece
Delivery Time: 30 days
Brand: 1stess
Product Description
MODEL EM8500-48L EM11000-48L
Capacity 8.5KVA/8.5KW 11KVA/11KW
Maximum PV input power 10000W 11000W
Lithium Battery Activation YES ( By PV or Utility) YES ( By PV or Utility)
Lithium Battery Communication YES(RS485) YES(RS485)
Battery Voltage 48VDC 48VDC
Solar Charger TYPE MPPT MPPT
Communication Interface RS232/RS485/DRY CONTACT RS232/RS485/DRY CONTACT
Dimension, D xW x H(mm) 540*415*122 540*415*122
Product Features
  1. Built-in 2 MPPT
  2. Lithium batteryactivation function by PV or Utility
  3. Compatible work with LiFePO4 battery via RS485
  4. Pure Sine Wave
  5. Powerfactor 1.0
  6. PVInput 500Vdc Max
  7. Built-in MPPT140A/160A
  8. Capable to work without battery
  9. Detachable dust coverfor harsh environment
  10. Wifi remote monitoring optional
  11. Support multiple output priority:UTL,SOL,SBU,SUB
  12. EQ function to optimize battery performance and extend lifecycle


Asia: Smart Power for Growing Economies & Complex Climates

Asia’s rapid urbanization and renewable energy push create strong demand for efficient, scalable, and intelligent inverters.

  • India & Bangladesh: Frequent voltage fluctuations and scheduled power cuts. The EM’s wide input voltage range (90–280VAC) and 10ms transfer time protect sensitive electronics in homes and small businesses.

  • Vietnam & Thailand: High humidity and tropical storms. The detachable dust cover and moisture-resistant design ensure durability, while dual MPPT optimizes solar harvest on shaded or multi-orientation rooftops.

  • Japan & South Korea: High energy standards and space constraints. With PF=1.0 and compact design, the EM series meets stringent grid codes and fits easily in residential or commercial installations.

  • Philippines & Indonesia: Island communities and off-grid tourism. Lithium battery activation via PV enables easy system startup, and WiFi monitoring allows remote management across scattered locations.

Key AdvantageDual MPPT allows two separate PV arrays, ideal for rooftops with uneven shading or different orientations—maximizing energy yield in space-constrained urban areas.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen First Tech Co., Ltd.
Location 1404-1405A Tower A, Huahai Financial Creative Center,No.5073 Menghai Avenue,Qianhai Shenzhen-Hong Kong Cooperation Zone,Shenzhen,China
Contact Person Jennifer

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