Model Number: SF-CMPT-3kw-1 Brand Name: SolarFirst Key Specifications/Special Features: Features:Innovative maximum power point tracking technology, which can significantly improve the utilization rate of solar energy system conversion efficiency as high as 97%Quickly scan the entire i-v curve, a few seconds to track the maximum power point of photovoltaic cell With extensive applicabilityVariety of load control mode, enhancing the application flexibility of the systemOptional seal, colloid, opening lead-acid battery charging procedure Excellent thermal design, natural air-coolingWith temperature compensation, automatic adjust the charge and discharge parameters, which can guarantee the normal battery lifespan

A variety of display unit to communicate, is convenient to check the running parameters of the controller

Specifications:

• Rated voltage: 220V DC
• Rated power: 3kw
• Rated charge current: 20A
• PV open circuit voltage range: 369 to 700V
• PV charging ways: MPPT
• MPPT operating voltage range: 288 to 546V
• PV inputpoint: 1
• Static losses: <10mA (220V DC)
• Charging circuit voltage drop: ≤0.7V
• Temperature compensation (optional): -30mV/°C (based on 25°C)
• Charging constant-current accuracy: 5%
• Voltage ripple coefficient: 1%
• Current ripple coefficient: 1%
• Efficiency: ≥97% (full operating)
• Display: sound-light alarm + LCD display (communication monitor) Protections: PV input anti-connecting, battery anti-connecting, night adverse current-resistant, battery over-charge resistant, battery under-voltage alarm, battery over-temperature alarm
• Communication: RS485/RS232, GPRS, Ethernet
• Cooling way: air-cooling IP level: IP30 (IP65 customized)
• Working temperatures: -10 to 50°C
• Storing temperatures: -20 to 70°C
• Humidity: ≤95% RH
• Elevation: ≤4,000m, 100% (derating use over 4,000m)