XTRA series are advanced maximum power point tracking (MPPT) charge controllers, for off-grid photovoltaic systems, with optional 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 of operating conditions, the XTRA series apply an advanced smart algorithm which results in up to 30% higher efficient charging, compared to a conventional pulse width modulation PWM solar charge controller.

Xtra series controller has a limit protection function on charging current &charging power, as well as auto derating power operation at high temperatures; the above protection ensures the stability of the 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 different application requirements. XTRA series controllers incorporate a self-adaptive three-stage charging algorithm based on a digital control circuit, which effectively prolongs the lifespan of the battery and significantly improves the system performance.

It also has extensive electronic protection for overcharge, over-discharge, PV&battery reverse polarity and etc. to ensure the sustainability and durability of the off-grid solar system.

Features:

• Advanced MPPT technology & ultra-fast tracking speed is up to 99.5 % guaranteed
• Maximum DC/DC transfer efficiency is as high as 98 %, full load transfer efficiency is up to 97.4 %
• Wide MPP operating voltage range
• Low-temperature protection and self activate the function for lithium battery charging
• Limit charging power & current overrated range
• Real-time energy statistics function
• Multiple load work modes
• Comprehensive electronic protection
• Compatible with lead-acid and lithium-ion?batteries
• Over-temperature protection and power degrading in higher temperature
• Optional LCD display units (XDB1/XDS1/XDS2) and accessories
• High quality and low failure rate components of ST or IR to ensure the service life
• Isolated RS485 communication port with 5V/200mA protected output, with standard Modbus protocol
• Monitor and set the parameters via the APP or PC software
• Dustproof and waterproof design with IP32? protection class
• CE certification(LVD IEC62109, EMC EN3/1-6-61000)

Specifications:

• System nominal voltage: 12/24VDC Auto (When a lithium battery is used, the system voltage can’t be identified automatically)
• Rated charge/discharge current: 40A
• Battery voltage range: 8~32V
• Max. PV open circuit voltage: 92V At 25? environment temperature, 100V At minimum operating environment temperature
• Max. PV input power: 1040W when the battery system is 24V, 520W when the battery system is 12V
• Battery type: Lead-acid battery(Sealed/Gel/Flooded/User), Lithium battery(LiFePO4, Li(NiCoMn)O2, User)
• Mounting dimension: 200×176mm with F5mm Mounting hole size
• Recommended cable: 6AWG(16mm2)