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Quick Details

  • Place of Origin: Shandong, China (Mainland)
  • Brand Name: UNISOLAR
  • Model Number: Tracer 3210A
  • Application: Solar System Controller
  • Rated Voltage: 12/24V
  • Maximum Current: 30A
  • Product name: 12V/24V auto working MPPT solar charge controller
  • Discharging current: no
  • Max.PV Voc: 100V
  • Nominal system voltage: 12/24V auto work
  • Rated battery current: 30A
  • Rated load current: 30A
  • Max. PV open circuit voltage: 100V
  • Max. battery voltage: 32V
  • Max. PV input power: 390W,780W
  • Overall dimension: 228x164x55mm

Packaging & Delivery

Packaging Details strong carton
Delivery Time within 7-10 working days after the order

12V/24V auto working MPPT solar charge controller

Product Description


Tracer A series adopts common positive design and advanced MPPT control algorithm. The products can track the MPP point fast and accurately in any situation which will improve energy efficiency and obtain the maximum solar energy. 

• Advanced MPPT technology
High tracking efficiency no less than 99.5%
Peak conversion efficiency of 98% 
Ultra-fast tracking speed 
Accurately recognizing and tracking of multiple power point 
Multi-function LCD displays system information intuitively 
User programmable for battery types, load control etc. 
3-Stage charge with PWM output 
Common positive grounding design 
RS485 port with industrial standard MODBUS open architecture 
Fully programmable function via PC software or remote meter

Electronic Protections:
• PV reverse polarity protection                
• PV short circuit protection
• PV over current alarm protection            
• Battery overcharge protection                 
• Battery over discharge protection           
• Battery reverse polarity protection              
• Load short circuit protection                    
• Load overload protection
• Overheating protection




Nominal system voltage12/24V auto work
Rated  battery current10A20A30A40A
Rated  load current10A20A30A40A
Max. PV open circuit voltage100V
Max. battery  voltage32V
Max. PV input power130W  (12V)260W  (12V)390W  (12V)520W  (12V)
260W  (24V)520W  (24V)780W  (24V)1040W  (24V)
Equalize charging voltageGel: 14.2V,  Sealed: 14.4V,  Flooded: 14.6V
Boost charging voltageGel: 14.2V,  Sealed: 14.4V,  Flooded: 14.6V
Float charging voltageGel /Sealed /Flooded: 13.8V
Low voltage reconnect voltageGel /Sealed /Flooded: 12.6V
Low voltage disconnect voltageGel /Sealed /Flooded: 11.1V
Self-consumption≤20mA(12V)  ≤16mA(24V)
GroundingCommon positive 
Temp. compensation-3mV/℃/2V
Communication PortRS485 / RJ45 interface
Working temperature-25℃~+45℃
Storage temperature-35℃~+80℃
Humidity≤95% N.C.
Overall dimension172x139x44mm172x139x44mm228x164x55mm252x180x63mm
Net weight0.6kg1.1kg1.2kg1.9kg


Packaging & Shipping


 Our solar charge controller can be packed as follows:

ModelProduct size(cm)PCS/CTNCarton size(cm)


Application Scope



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China (Mainland) | Manufacturer, Trading Company
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The supplier’s transactions conducted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $68,000
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