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.
Features:
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