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PRTC-30/4048V MPPT Solar Charge Controller

Operation mode:12/24/36/48VDC auto work

Application area:RV, communication base station, household system, field monitoring and many other areas.

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PRTC series controller, based on multiphase synchronous rectification technology (MSRT) and advanced MPPT control algorithm, with dual-core processor architecture and common negative design, has the features of high response speed, high reliability, and high industrial standard. MSRT can guarantee very high conversion efficiency in any charge power, which sharply improves the energy efficiency of solar system; Advanced MPPT control algorithm minimize the maximum power point loss rate and loss time, to ensure the tracking efficiency, corresponding speed as well as high conversion efficiency under high or low power, so that in any situation, PRTC products can rapidly track the maximum power point(MPP) of PV array to obtain the maximum energy of the panel. The limitation function of the charging power and current, and automatic power reduction function fully ensure the stability when works with oversize PV modules and operate under high temperature environment.

With the adaptive three-stage charging mode based on digital control circuit,PRTC series controllers can effectively prolong the life-cycle of battery and significantly improve the system performance. The load, utility or generator auto-control relays make it easy to compose the hybrid power system. All-around electronic protections, including overcharging, over discharging, and PV reverse polarity protection, effectively ensure the safer and more reliable operation of the solar system for a longer service time. The isolated RS485 interface with standard MODBUS communication protocol and 5V power supply makes it easy for customer to expand the application, it support up to 6 charging in parallel to expand system and meet with different monitoring requirements, so that can be widely used for various applications, e.g. solar RV, household system and field monitoring, etc.

CE certification(LVD EN/IEC62109,EMC EN61000-6-1/3)

100% charging and discharging in working environment temperature range

Optional LCD display units (XDB1/XDS1/XDS2)

High quality and low failure rate components of ST or IR to ensure service life

Advanced MPPT technology & ultra-fast tracking speed guarantee tracking efficiency up to 99.5%

Maximum DC/DC transfer efficiency is as high as 98.5%★, full load efficiency is up to 97.2%★

Advanced MPPT control algorithm to minimize the MPP lost rate and lost time

Accurate recognizing and tracking of multi-peaks maximum power point 

Wide MPP operating voltage range

Support the lead-acid and lithium batteries, programmable temperature compensation

Limit charging power & current over rated value

Real-time energy statistics function

Power reduction automatically over temperature value

Multiple load work modes

Comprehensive electronic protection

Isolated RS485 with 5V/200mA protected output for no power devices, with Modbus protocol

Support monitoring and setting the parameters via APP or PC software 

IP33▲ Ingress protection

RV, communication base station, household system, field monitoring and many other areas.

Mounting dimension200×178mm200×180mm
Mounting hole sizeΦ5mm
Recommended cable8AWG(10mm2)6AWG(16mm2)

System nominal voltage12/24/36/48VDC Auto
Rated charge current30A40A
Rated discharge current30A40A
Battery voltage range8~68V
Max. PV open circuit voltage150V
MPP voltage range(Battery   voltage +2V)~108V
Rated charge power390W/12V520W/12V
780W/24V 1040W/24V
Max. conversion efficiency98.10%98.50%
Full load efficiency96.90%97.20%
Discharge circuit voltage drop≤0.23V
Temperature compensate coefficient-3mV/℃/2V   (Default) 
GroundingCommon   negative
RS485 interface5VDC/200mA(RJ45)
LCD backlight timeDefault:60S,Range:0~999S(0S:the   backlight is ON all the time)

①When a lithium battery is used, the system voltage can’t be identified automatically.

②At minimum operating environment temperature

③At 25℃ environment temperature

④When a lithium battery is used, the temperature compensate coefficient will be 0,and can’t be changed.

Working environment temperature
(100% input and output)
-30℃~+45℃(No LCD)
Storage temperature range-20℃~+70℃
Relative humidity≤95%,   N.C.
Pollution degreePD2

The controller can full load working in the working environment temperature, When the internal temperature is 81℃, the reducing power charging mode is turned on. Refer to P24.

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