Samlex 20A Solar Charge Controller - 12/24V [MSK-20A]

Samlex 20A Solar Charge Controller - 12/24V [MSK-20A]

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20A Solar Charge Controller - 12/24V

The MSK-20A is a 3-stage intelligent series-type PWM charge controller. It is based on an advanced design using a microcontroller for digital accuracy and fully automatic operation. It can be used for 12V or 24V battery systems.


  • 3-stage intelligent Series Type PWM charging
  • Automatic battery voltage detection: 12V / 24V
  • 100% input and output within -35 degrees C to +50 degrees C
  • Electronic protections: overheating, overcharging, over-discharge, overload, and short circuit
  • Reverse protection: any combination of solar module and battery
  • Optional MSK-TS External Temperature Sensor


  • Recreational and service vehicles 
  • Off-grid grid
  • Portable charging kits 
  • Boats and marine crafts
  • Fieldwork or mobile offices
  • Telecommunications


  • Input: 12V / 24V
  • Amps: 20 amps
  • Weight: 0.66 (lbs)
  • Weight: 0.3 (kgs)
  • Dimensions: 6.28 x 3.2 x 1.89 in.
  • Dimensions: 159.6 x 81.4 x 47.88 (mm)

Quick Guide (pdf)
Owner's Manual (pdf)

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