Off Grid 8.5kw 11kw 48V Pure Sine Wave Single Phase Solar Inverter with Parallel Support up to 6 Units

Price Negotiable
Price: To be negotiated
MOQ: 1 piece
Delivery Time: 30 days
Brand: 1stess
Product Description
Off Grid 8.5kw 11kw 48V Pure Sine Wave Single Phase Solar Inverter with Parallel Support up to 6 Units
M Series Solar Inverter product overview
Product Specifications
Specification M8500T-48PL M11000T-48PL
Place of Origin China China
Mounting Method Wall Bracket Wall Bracket
Nominal Battery Voltage 48VDC 48VDC
Parallel Capacity YES, 6 units YES, 6 units
Lithium Battery activation YES (By PV or Utility) YES (By PV or Utility)
Nominal Voltage 230VAC 230VAC
Frequency 50/60Hz 50/60Hz
Waveform Pure Sine wave Pure Sine wave
Solar Charger Type MPPT MPPT
Communication Interface RS232+RS485+Dry-contact RS232+RS485+Dry-contact
PV Array MPPT Voltage Range 60VDC~500VDC 60VDC~500VDC
Surge Power 17000VA 22000VA
Size 540*415*122mm 540*415*122mm
Weight 14.5kg 15.5kg
Operating Temperature Range -10℃ to 50℃ -10℃ to 50℃
Key Features
  • Dual output for smart load management
  • Lithium battery activation function by PV or Utility
  • Compatible work with LiFePO4 battery via RS485
  • PV Input 500Vdc Max
  • Built-in MPPT 120A
  • Capable to work without battery
  • Detachable dust cover for harsh environment
  • Wifi remote monitoring optional
  • Support multiple output priority: UTL, SOL, SBU, SUB
  • EQ function to optimize battery performance and extend lifecycle
Technical Documentation
M Series inverter technical diagram 1 M Series inverter technical diagram 2 M Series inverter technical diagram 3 M Series inverter technical diagram 4 M Series inverter technical diagram 5 M Series inverter technical diagram 6 M Series inverter technical diagram 7 M Series inverter technical diagram 8 M Series inverter technical diagram 9 M Series inverter technical diagram 10 M Series inverter technical diagram 11
M Series Inverters Powering 12 Nations Across Four Continents

As the global demand for sustainable and reliable energy intensifies, the deployment of advanced solar technology has become a cornerstone of national infrastructure development. The M Series 8.5-11kW solar inverter, with its robust parallel capability, dual AC output, and battery-flexible operation, is now at the heart of transformative projects across Asia, South America, the Middle East, and Africa. Engineered for durability and high performance, these inverters are empowering communities, enhancing grid stability, and driving economic growth under the most challenging environmental conditions.
Asia: Harnessing the Sun in Dynamic Environments
Philippines - Coastal Resilience & Off-Grid Electrification
  • Purpose: To provide stable power for remote island communities and tourism resorts vulnerable to typhoons and grid failures.
  • Effect: 24/7 renewable power, reduced diesel dependency, and enhanced disaster resilience.
  • Scale: 150 units (approx. 1.3 MW), deployed across the Visayas region.
  • Location: Small islands and coastal resorts.
  • Expert Insight: The inverter's detachable dust cover and corrosion-resistant design are critical for salt-air environments. Its ability to work without a battery ensures basic power availability even if battery systems are damaged during storms. Parallel configuration allows for scalable microgrids.
Indonesia - Industrial & Agricultural Hybrid Power
  • Purpose: To stabilize energy supply for palm oil processing plants and rural telecommunication towers.
  • Effect: Lower operational costs, reduced carbon footprint, and reliable power for processing and communication.
  • Scale: 80 units (approx. 880 kW) for industrial plants; numerous smaller setups for telecom.
  • Location: Sumatra and Kalimantan.
  • Expert Insight: High humidity and sporadic grid voltage are key challenges. The inverter's pure sine wave output and wide input voltage range protect sensitive machinery. The RS485 communication enables seamless integration with existing LFP battery banks for optimal hybrid operation.
Bangladesh - Urban Rooftop and Commercial Backup
  • Purpose: To alleviate severe grid load-shedding in urban centers and provide backup for SMEs and hospitals.
  • Effect: Uninterrupted power for critical operations, reduced generator use, and lower electricity bills.
  • Scale: Widespread installation of ~500 units (over 4 MW cumulative) in Dhaka and Chittagong.
  • Location: Rooftops of commercial buildings, hospitals, and textile workshops.
  • Expert Insight: In dense urban areas, space is limited. The inverter's high power density (up to 11kW) and parallel capability (up to 6 units) allow for significant power generation in confined spaces. The multiple output priority modes (SUB, SBU) are ideal for managing grid, solar, and battery usage efficiently.

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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