PRAG 40A MPPT Solar Charge Controller


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PRAG 40A MPPT Solar-Charge Controller with SCH-40A12/24/36/48V Voc 18-150V Heatsink Cooling.

PRAG 40A MPPT-Solar-Charge Controller with SMK MPPT Solar charge controller is a maximum power point tracking(MPPT) battery charger for off grid photovoltaic system up to a significant KW. Various Models available, including the economic fan cooling design version and high performance, heatsink cooling version. Mainly used for solar power station, home solar power system, solar street light control system, mobile solar power system.

The PRAG 40A MPPT Solar Charge Controller 12V/24V/48V auto work, parallel design, multi-stage charging optimizes battery performance, MPPT efficiency >99.5%, peak conversion efficiency 97.5%.

Compatible with Gel, AGM, Flooded, Sealed Lead Acid and Lithium Batteries.

Comprehensive protection, heatsink cooling, quiet operation. Comfortable installation and commissioning, monitoring your solar harvest online via RS485 communication, Ethernet/RS232 communication optional.

Features of PRAG 40A MPPT-Solar-Charge Controller

  • 12V/24V36/48V Auto Work, Parallel Design
  • Multi-stage Charging Optimizes Battery Performance
  • MPPT Efficiency >99.5%, Peak Conversion Efficiency 97.5%
  • Compatible with Gel, AGM, Flooded, Sealed Lead Acid and Lithium Batteries
  • Comprehensive Protection
  • Heatsink Cooling, Quiet Operation
  • Comfortable Installation and Commissioning
  • Monitoring your Solar Harvest Online Via RS485 communication, Ethernet/RS232 communication Optional

Features and Performances

  • Model: SCH-40A-H
  • Solar System Voltage: 12V/24V/36V/48V Auto Work


  • PV Operating Voltage: 18~150Vdc @12V, 35~150Vdc @24V, 50~150Vdc @36V 60~150Vdc @48V
  • PV Input Power: 12V 600W, 24V 1200W, 36V 1700W, 48V 2300W
  • Rated Input Current: 40A
  • Rated DC Load Current: 40A
  • Self-Consumption: 2W
  • Conversion Efficiency: 97.5%
  • Protection: PV Array Short Circuit, Over Charging, Battery Reverse Polarity, Output Short Circuit

Battery Charging

  • Battery Type: Sealed Gel AGM, Flooded & Lithium Batteries
  • Charge Algorithm: 4 Stage; Bulk, Absorption, Float, Equalize Charging
  • Bulk Charge Voltage: Sealed 14.4V, AGM 14.2V, Gel 14.2V, Flooded 14.6V, User Defined 10-15V
  • Float Charge Voltage: Sealed Gel AGM 13.8V, Flooded 13.7V, User Defined 10-15V
  • Equalize Charge Voltage: Sealed 14.6V, AGM 14.8V, Flooded 14.9V
  • Load Disconnect Voltage: 10.5V ~12V Adjustable
  • Low Voltage Reconnect Voltage: 12.5V
  • Temperature Compensation: 5MV/℃/2V with BTS


  • Communication Port: RS485(Standard) Ethernet RS232 Optional with Online Monitoring System


  • Net Weight: 3.3kg
  • Gross Weight: 3.7kg
  • Dimension: 350*280*180(mm)
  • Cooling: Heatsink Cooling
  • Enclosure: IP54


  • Ambient Operating Temperature: -25℃ ~ 60℃
  • Storage Temperature: -40℃ ~ 80℃
  • Humidity: 100% Non-condensing
  • Warranty: Two Years

Technical Data for 12V System at 25, Twice in 24V System Rate, Triple in 36V System Rate and Quadruple in 48V System Rate


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