XTRA series are advanced maximum power point tracking (MPPT) charge controllers, for o-grid photovoltaic systems, withoptional display units (XDB1/XDS1/XDS2).In order to maximize the energy harvest from PV arrays and simultaneously minimize the power loss within a wide range ofoperating conditions, XTRA series apply an advanced smart algorithm which results in up to 30% higher ecient charging,compared to a conventional pulse width modulation (PWM) charge controller.Xtra series controller have limit protection functionon charging current &charging power, as well as auto derating power operation at high temperature; the above protection ensurethe stability of system even at exceeded rated PV power and over temperature conditions.Protection class IP32 and isolated RS485 communication port further improve the controller’s reliability under dierentapplication requirements.XTRA series controllers incorporate a self-adaptive three-stage charging algorithm based on a digitalcontrol circuit, which eectively prolongs the lifespan of battery and signicantly improve the system performance. It also hasextensive electronic protection for overcharge, over discharge, PV&battery reverse polarity and etc. to ensure the sustainabilityand durability of the o-grid solar system.
• Advanced MPPT technology & ultra-fast tracking speed is up to 99.5 % guaranteed
• Maximum DC/DC transfer eciency is as high as 98 %,full load transfer eciency is up to 97.4 %
• Wide MPP operating voltage range
• Low temperature protection and self activate function for lithium battery charging
• Limit charging power & current over rated range
• Real-time energy statistics function
• Multiple load work modes