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VS BN Series

  • Product Details
  • Additional Information

The devices of the VS BN series can charge and discharge a battery automatically, especially with off-grid PV systems.

The current operating state is determined by a hybrid actuator and, as a result, the charging process is optimized by the principle of pulse width modulation. Therefore, PWM charge controllers are significantly more effective than simple linear charge controllers.
The built-in microprocessor gently charges the battery, thereby guaranteeing a long lifespan for your solar batteries.

The charge status and the charging via the solar module can be seen from the LEDs. The built-in undervoltage protection prevents the battery from over-discharging. Overcharging of the batteries is thus prevented since the charge controller ends the charging process when the full capacity is reached.


  • Keeps the battery fully charged
  • Can be used for acid, AGM, gel and lithium batteries
  • Prevents the battery from supplying voltage to the solar system at night
  • Reverse polarity protection for battery and solar panel
  • External battery temperature sensor can be connected
  • RS485 / interface with Modbus protocol available
  • Automatic shutdown if the charging current exceeds the capacity of the controller
  • Automatic temperature compensation (ATC)
  • Timer function up to 1-15 hours option for night lighting
  • LED shows the charge status of the battery
  • LCD display with 4 buttons selection and menu
  • PWM modulation
  • Automatic switching on / off of the charging current, depending on the battery charge
  • 4 battery types adjustable (open acid, AGM, gel, user)
  • Suitable for lithium batteries


  • Solar home system
  • Traffic signals
  • Solar lighting
  • Video surveillance

Technical specifications

PWM charge controller 10/20/30/45 A

  • System voltage 12 / 24V
  • Open circuit voltage up to 50V
  • Negative grounding

PWM charge controller 45/60 A

  • System voltage 12/24/36 / 48V
  • Open circuit voltage up to 96V
  • Negative grounding

Datasheet English

Datasheet German 12-24V

Datasheet German 12-48V

Manual English

Manual German

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