Solar controller MPPT Carspa MH-R2440, 12/24V, 40A

Product detailed description

Professional MPPT controller designed for charging 12/24 V lead-acid and LiFePO4 batteries with solar energy. Compared to cheaper PWM-type loss controllers, these controllers achieve much higher efficiency (up to 98%) and ensure maximum energy yield from solar panels. AGM, GEL and LiFePO4 sealed batteries are supported, voltage is detected automatically. The clear display makes it very easy to see the voltage of both the solar panels and the battery, the charging current, the state of charge, the current drawn by the load, the temperature, or the error code in case of a fault. At the same time, a thermocouple for temperature compensation of charging is included with the controller. The connected DC load can be switched manually by the controller or by several programs (e.g. twilight switching with timer). A sophisticated protection system prevents the controller, solar panels and battery from damage or faulty wiring.

- MPPT panel maximum power tracking technology
- adaptive multi-stage battery charging
- automatic detection 12/24 V
- support for lead AGM / GEL and LiFePO4 batteries
- advanced battery and panel protection system for added safety
- TVS lightning protection
- clear LCD display, LED operating status indicators
- programmable DC load switching
- completely silent passive cooling
- sensor for temperature compensation of charging
- communication port for monitoring


Technical parameters

Battery voltage: 12/24 V (auto detection/manual setting)
Max. panel power: 550 W / 12 V, 1100 W / 24 V
Max. panel Voltage (Voc): 100 V (25°C), 90 V (-25°C)
Max. regulator current: 40 A
Battery voltage range: 9 to 35 V
Battery type: AGM, GEL, Sealed, LiFePO4, User defined
MPPT voltage range: battery voltage +2 V to 75 V
Voltage conversion efficiency: 98%
MPPT tracking efficiency: > 99%
Protection against: PV and battery over-voltage, PV over-power, over-current, complete battery discharge, battery over-discharge, short circuit, over-polarity, DC load output overload, lightning strike (TVS)
Max. capacitive load: 10 000 uF
Max. dC load current: 20 A
Output programming: manual switching, twilight switching, twilight timer, permanently triggered, test
Temperature compensation: -3 mV/°C/2 V (default)
Temperature sensor: included
Communication: RS232 / RS485
Self-consumption: 0.7 to 1.2 W on standby
Operating temperature: -35°C to +45°C
Max. altitude: 3000 m
Dimensions: 238 x 173 x 72.5 mm
Weight: 2 kg
Degree of protection: IP32