STS MPPT Series Solar Charge Controller

STS MPPT series solar charge controller adopts advance MPPT technology. It can fast and accurately track the maximum power point (MPP) of photovoltaic array in any situation and obtain the maximum solar energy at any time, which remarkably improves energy efficiency.

With Modbus communication protocol interface, it is convenient for user to expand applications and meet monitoring requirements in various fields like telecommunication based station, household system, lighting system, home backup power system etc.

Key Features

  • 1) Advanced maximum power point tracking (MPPT) technology
  • 2) High tracking efficiency >99.5%
  • 3) Peak conversion efficiency of 98% and full load efficiency of 97%
  • 4) Ultra-fast tracking speed
  • 5) Accurately tracking and recognizing MPP among multiple wave crest
  • 6) Reliable automatic PV current limiting function
  • 7) Multi-function LCD displays system information intuitively
  • 8) 3-stage charge with PWM output
  • 9) Battery type selection: sealed, Gel, Flooded and user programmable
  • 10) Common positive grounding design
  • 11) RS485 port with industrial standard MODBUS open architecture
  • 12) Real-time data monitoring and parameters setting with remote control panel, APP or PC software
  • 13) Protection: PV short circuit, PV over current, PV reverse polarity, battery over voltage, battery reverse polarity, battery overheating and controller overheating, load short circuit, load overload.

Model List

ModelCharge currentDC voltageMax PV open circuit voltage