Solar controller MPPT Lumiax MT3075-BT, 12-24V/30A, bluetooth

Product detailed description

MPPT controller 30A for all available types of batteries with system voltage 12V or 24V and for PV panels with max. power 390W (12V) or 780W (24V) with max. input voltage 55V and min. . It is therefore also suitable for panels with a system voltage of 12V, which generate 16-18V at maximum load. This controller uses an internal inverter to adjust the V-A characteristic of the current source-solar panel to be optimal for battery charging. It can harness the energy from the solar panels better than a PWM controller that regulates charging only by pulse limiting the direct connection between the solar panel and the battery, where the pulse width is proportional to the state of the battery being charged. In other words, the MPPT controller can generate the ideal voltage and current to charge the battery from a higher voltage and lower current source. For example, 18V and 5A converts to 14.5V/6.2A. The conversion efficiency of the V-A characteristic tends to be above 95%, so losses are minimal and the regulators can usually be adapted to different types of batteries to provide the most optimal charging.


Technical parameters:

- system voltage 12 V or 24 V, usable batteries: Pb AGM, Pb AGM GEL, Pb liquid, LiFePO4
- max. power of PV panels: 390W (780W-24V) for maximum use of the controller. When using more powerful panels, the full power will not be used, but the function of the controller will be preserved without damage.
- max. PV panel voltage: 55V (-20°C), 50V (+25°C)
- min.PV panel voltage when using 12V battery: 15,6V - verified by own measurement
- max. charging current: 30A
- self-consumption: <8mA(12V),<12mA(24V)
- 4-stage charging-only for Pb batteries (CC,CV - boost, CV - float, CV-equalize)
- CC = charging with full power of PV panels until the set value of the end of charging (CV-boost)
- CV-boost = charging for 1-2h after reaching clamp voltage 14-15V (adjustable)
- CV-equalize=charging with increased voltage to mix the liquid electrolyte-optional only for lead acid batteries with liquid electrolyte
- CV-float = charging with a holding voltage of 13.5-13.8V (adjustable)
- choice of battery type: liquid dielectric, AGM, AGM GEL, LiFePO4
- LCD display for setting and monitoring operating parameters
- temperature compensation: -4.17mV/K per cell during boost+equal -3.33mV/K per cell during float (maintenance) charging
- iP32 protection
- RS485 interface
- operating temperature: -25°C~55°C
- dimensions: 189 × 182 × 64 mm
- weight: 1.3 kg

Please note: for scarifying with bluetooth it is necessary to have a battery charged to at least 12.5V. Solar Life app (skywise).