MPPT Solar Charge Controller Manufacturer

MPPT Solar Charge Controller

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Maximum power point tracking (MPPT) controller

Sandi MPPT solar charge controller is an intelligent PV controller designed for off-grid PV power generation systems. The controller features wide-range PV voltage input, RS485/CAN communication, modular design, and high conversion efficiency.

Applications

MPPT solar charge controller is suitable for off-grid PV systems, PV power generation systems, DC communication base stations, solar power station systems, and solar DC power supply systems.

Features

MPPT solar charge controller uses a high-speed and high-performance 32-bit processor with excellent EMC design.
Advanced MPPT tracking algorithm offers a tracking efficiency of no less than 99%.
MPPT solar charge controller uses IGBT as electronic switch and multi-phase synchronous rectification technology to improve equipment stability.
Super-fast maximum power point tracking speed ensures accurate identification and tracking of multiple peaks of the maximum power point.
Wide input voltage range can save costs on combiner boxes and wiring, reducing construction costs.
Advanced PID algorithm offers a more precise battery energy management system.
Four-stage charging mode maximizes the utilization of PV modules and batteries.
Secondary protection function ensures that the battery is not damaged by overcharging under any circumstances.
Dual-loop control of voltage and current allows for setting of current-limiting charging.
Fully enclosed air duct structure design ensures high protection level and high-speed intelligent fan cooling.
Power generation statistics and real-time power curve functions allows for real-time monitoring of the system's power generation status.
Can control the charging and discharging of the controller through RS485 and dry contact input.
Based on the standard Modbus communication protocol using the RS-485 communication bus.

Specifications

Electrical Parameters
Rated voltage	192V-398V	400V-480V
Rated charge current	50A 60A 80A 100A
Charging technology	MPPT(maximum power point tracking)
MPPT efficiency	>99.9%
Max. input voltage (VOC)	800V	850V
MPPT starting voltage	Battery voltage 20V
No-load loss	< 0.5W
Display	Color LCD display screen touch buttons
Language	English/Chinese
Protection functions	Input reverse polarity, overvoltage, short circuit, overheating, etc.
Ambient temperature	-25°C 55°C
Altitude	Power derating for above 2000m
Degree of protection	IP32 (indoor)
Noise	< 50dB
Cooling method	Pure aluminum heat sink high speed fan
Dimensions	500×384×228mm
Net weight	27kg
Packaging	Cardboard box
Charging Parameters
Rated voltage	2V	N	N stands for different rated voltages, the variable for battery charging voltage is based on the value of 2V. For example, if the rated voltage is 360V, the overvoltage disconnect parameter value is 360V/2V*2.65V=477V.
Overvoltage disconnect	2.65V	=2.65*N/2
Overvoltage reconnect/complete charge	2.5V	=2.5*N/2
Equalization charge	2.4V	=2.4*N/2
Float charge	2.3V	=2.3*N/2
Equalization charge recovery	2.2V	=2.2*N/2
Under voltage alarm	1.75V	=1.75*N/2
Equalization charge timing	120 min
Charge current limiting	＜ rated current
All charging parameters are adjustable by users based on the battery properties The charging parameters for lithium battery need to be customized according to the properties of the lithium battery Charge current limiting can be set by users with a value less than rated current