Solar controller MPPT SOLARFAM MPJ40A, 12-24V/40A

The MPPT controller uses an internal converter to adjust the V-A characteristics of the current source (solar panel) so that it is optimal for charging the battery. It can therefore utilize energy from solar panels much better than a PWM controller, which 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 for charging the battery from a higher voltage and lower current source. For example, from 30V and 5A, it generates approx. 15V and 10A. The efficiency of the V-A conversion characteristic is usually over 95%, so losses are minimal and the controllers can generally be adapted to different types of batteries for optimal charging.

Specifications:
System voltage 12–24V
Applicable batteries: Pb AGM, Pb AGM GEL, Pb liquid, LiFePO4
Max. PV panel power: 520W (1040W-24V) for maximum use of the regulator.
Max. PV panel voltage: 100V (-20°C), 92V (+25°C)
Max. charging current: 40A
Max. load current: 20A
Own consumption: <50mA
4-stage Pb battery charging (CC, CV – boost, CV – float, CV-equalize)
CC = charging at full power of PV panels to the set end of charge value (CV-boost)
CV-boost = charging for 1–2 hours after reaching a terminal voltage of 14–15V (adjustable)
CV-equalize = charging with increased voltage to mix the liquid electrolyte – optional only for batteries with liquid electrolyte
CV-float = charging with a maintenance voltage of 13.5–13.8V (adjustable)
Battery type selection: With liquid dielectric, AGM, AGM GEL, LiFePO4
LCD display for setting and monitoring operating parameters
Protection: IP30
Operating temperature: –20°C~55°C
Dimensions: 125×175×47mm