· LCD display design, read operating data and working condition easily
· Real-time energy statistics function
· 12/24/36/48V automatic recognition
· Flexible System battery selection: Liquid, Gel, AGM and Lithium
· Extends battery life through accurate remote temperature sensor
· Controller is protected against over-temperature due to built-in power reduction function
· Four stages battery charging process: fast, boost, equalization, float
· Multiple load control modes: Always on, Street lamp, User-defind Mode
· Two USB interfaces (Max20/30/40-EU)
· IoT wireless communication or Bluetooth communication functions optional (Max60(48)-E)
· Based RS-485 standard Modbus protocol with RJ11 interface to maximize the communication needs of
different occasions (Max60(48)-E)
· Perfect EMC & thermal design
· Full automatic electronic protect function
Parameters:
Item | Max20-EU | Max30-EU | Max40-EU | |||||
Battery | Max Charging Current | 20A | 30A | 40A | ||||
System Voltage | 12/24V automatic recognition | |||||||
Max volt on Bat. terminal | 35V | |||||||
Battery Type | Gel, AGM, Liquid, Lithium(default: Gel) | |||||||
Gel, AGM, Liquid | Fast Charging Voltage | before boost or equalization charging stage | ||||||
Boost Voltage | 14.5/29.0V @25℃ | |||||||
Equalization Voltage | 14.8/29.6V @25℃（Liquid, AGM） | |||||||
Float Voltage | 13.7/27.4V @25℃ | |||||||
Low Volt. Disconnect | 10.8~11.8V/21.6~23.6V(default: 11.2/22.4V) | |||||||
Overcharge Protect | 15.8/31.3V | |||||||
Temp. Compensation | -4.17mV/K per cell (Boost, Equalization)， -3.33mV/K per cell (Float) | |||||||
Lithium | Charging target voltage | 10.0~32.0V(Lithium, default: 14.4V) | ||||||
Low voltage disconnect | 9.0~30.0V(Lithium, default: 10.6V) | |||||||
Panel | Max volt on PV terminal *1 | 25V/50V | ||||||
Dusk/Dawn detect volt. | 5.0/10.0V | |||||||
Load | Output Current | 20A | 30A | 40A | ||||
Load mode | Always on(Default) , Street lamp, User-defind Mode | |||||||
System | Dimensions | 189*96*53mm | ||||||
Weight | 420g | |||||||
Self consumption | 8mA/12mA | |||||||
Grounding | Common Positive | |||||||
Power terminals | 8AWG(10mm²) | |||||||
Ambient temperature | -20~+50℃ | |||||||
Storage temperature | -25~+80℃ | |||||||
Ambient humidity | 0~100%RH | |||||||
Protection degree | IP32 | |||||||
Max Altitude | 4000m | |||||||
Max-EU series is the most cost-effective boost constant current 12v 24v solar charge controller. It means 12V/24V automatic recognition as well as 20A 30A 40A charge and discharge current.
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