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Smart Off-Grid Inverter with Advanced Energy Management
Lithium Battery Activation via PV or Utility - Wakes up deeply discharged Li-ion batteries, preventing premature disposal.
Operates Without a Battery - Works grid-connected or directly from PV, lowering initial costs for budget-conscious off-grid installations.
Pure Sine Wave Output - Clean power for all loads (inductive/capacitive), including air conditioners, refrigerators, and motors.
Power Factor 1.0 - Delivers full rated power without derating, maximizing real load capacity.
Wide PV Input Range - 60Vdc - 500Vdc MPPT voltage, compatible with various solar panel configurations.
High-Current Built-in MPPT - Solar charge current up to 60A - 120A, with PV-to-inverter efficiency up to 96%.
Multiple Output Priority Modes - UTL, SOL, SBU, SUB - Flexible energy management for different usage scenarios.
Battery Equalisation (EQ) - Optimises battery bank performance and extends cycle life.
Detachable Dust Cover - Easy cleaning, ideal for harsh/dusty environments.
Optional WiFi Remote Monitoring - Real-time system status via smartphone or PC.
Key Technical Features
LiFePO₄ Communication via RS485 - Intelligent BMS interaction for safe and efficient charging/discharging.
Dual-Source Charging - PV + AC grid can deliver total charge current up to 60A - 120A (model dependent).
Wide AC Input Range - 90-280Vac, with selectable modes for personal computers (170-280V) or home appliances (90-280V).
Fast Transfer Time - 10ms (PC mode) or 20ms (appliance mode) between grid and battery.
Overload Protection - 10s at 110-140% load, 5s at ≥140% load.
Wide Operating Temperature - -10°C to +50°C, with 5-95% non-condensing humidity tolerance.
Built-in CC/CV Charging - 3-stage intelligent charge algorithm for both lead-acid and lithium batteries.
Main Functions
Automatic energy dispatch among PV, utility, and battery
Supports lead-acid and LiFePO₄ battery types
Solar charger + AC charger integrated; priority and current limits configurable
Surge power up to 2× rated power (e.g., 6.2kW model provides 12.4kVA surge)
Dual communication ports: RS232 + RS485 for monitoring and external control
Product Specifications
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℃
Product Images
Internal Components View
Connection Panel
Side View
Display Interface
Installation Diagram
Technical Specifications
Wiring Schematic
Application Examples
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Year Established:
2017
Total Annual:
15000000-16000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Shenzhen First Tech Co., Ltd was established in 2017, which is a one-stop solution provider of solar & battery energy storage system.First Tech is engaged in the research, development, production, sales and service of the commercial and industrial energy storage system, home energy storage sys...
Shenzhen First Tech Co., Ltd was established in 2017, which is a one-stop solution provider of solar & battery energy storage system.First Tech is engaged in the research, development, production, sales and service of the commercial and industrial energy storage system, home energy storage sys...
