Solar controller MPPT Lumiax MT1550EU, 12V/10A

Product detailed description

MPPT regulator 10A for lead-acid batteries with system voltage 12V and for PV panels with max. power 130W with max. input voltage 45V and min. input voltage 15,8V. It is primarily designed for panels with a system voltage of 12V, which generate 16-18V at maximum load.

Brief description of MPPT controllers:
The MPPT controllers adjust the V-A characteristic of the current source-solar panel flux using an internal V-A converter to be optimal for battery charging. Thus, they can harness the energy from the solar panels better than PWM controllers, which regulate 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/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
- max. power of PV panels: 130 W for maximum use of the controller. When using a more powerful panel, the full power will not be used, but the controller function will be maintained without damage.
- max. output voltage of PV panel: 45 V
- min. output voltage of PV panel: 15,8 V - verified by own measurement
- max. charging current: 10 A
- self-consumption: 7 mA
- 4-stage battery charging (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 1-2 hours after reaching a clamp voltage of 14-15 V (adjustable)
- CV-equalize= charging with increased voltage to mix the liquid electrolyte-optional only for batteries with liquid electrolyte
- CV-float = charging with a holding voltage of 13.5-13.8 V (adjustable)
- choice of Pb battery type: liquid dielectric, AGM, AGM GEL
- not suitable for Li-Ion, LiFePO4 or Li-Pol batteries
- load disconnection at battery voltage 10,8-11,8V - adjustable
- LCD display for setting and monitoring operating parameters
- 2× USB interface
- temperature compensation: -4.17mV/K per cell for boost+equal charging - 3.33mV/K per cell for float (maintenance) charging
- modbus protocol based on RS-485 interface maximizing communication possibilities.
- iP32 protection
- operating temperature: -25°C~55°C
- dimensions: 189 × 96 × 53 mm
- weight: 0,42 kg