VarioString series The VarioString high voltage MPPT solar charge controller ensures an optimal charge of the battery maximizing the solar production. First of its kind, the VarioString achieves the highest conversion efficiency in the world from high voltage solar power (900V) to 48V battery voltage, including a galvanic isolation between the PV and battery. 100% designed and manufactured in Switzerland, the VarioString offers a 10-year warranty. swiss made power

Technical data VS Electrical characteristics PV array side Maximum current Maximum solar open circuit voltage Minimum solar functional circuit voltage Maximum solar power recommended (@STC) Recommended MPPT voltage Electrical characteristics battery side Maximum output current Nominal battery voltages Operating voltage range Battery grounding possibility MPPT efficiency Maximum stand-by self-consumption Charging stages 4 stages: Bulk, Absorption, Floating, Equalization Number of steps, thresholds, end current and times adjustable with the RCC-02/-03 Battery temperature compensation (with accessory...