Design a PV System with the SMA SMA-ST48

With SolarDesignTool you can design a PV system and panel layout in minutes! Handles multiple inverter technologies, performs climate-specific electrical calculations, and more!

This page contains information about the SMA SMA-ST48 inverter. To compare this to other PV inverters, click here.

DC Electrical Properties

  • Maximum Input Current 180A
  • Start Voltage 365V
  • Max DC Input Voltage 600V
  • Peak Power Tracking Voltage 300V - 480V
  • Polarity of Ground Either
  • DC Disconnect Yes
  • Number of String Inputs 24
  • Includes Fuses for String Inputs No
  • Max Rating for String Fuses 20A
  • Rating of Included String Fuses not applicable
  • DC Input Wire Gauge Range 10 AWG – 6 AWG

AC Electrical Properties

  • Rated Power Output 48000W
  • Compatible Utility Voltages 240V, 277V
  • Peak Efficiency 96.3% (240V)
    96.5% (277V)
  • Weighted Efficiency 96%
  • Maximum Output Current 116A (240V)
    58A (277V)
  • AC Disconnect Yes
  • AC Input Wire Gauge Range 6 AWG – 350 MCM
  • Sleep Consumption 0.6W
  • Standby Consumption 42W

Mechanical Characteristics

  • Height 1,810mm (71.3in)
  • Width 1,100mm (43.3in)
  • Depth 990mm (39in)
  • Weight 384kg (846.6lb)
  • CSI-Approved Built-in Meter No
  • NEMA Enclosure Rating NEMA 3R
  • Cooling Method Forced Air

Environmental Constraints

  • Ambient Temperature Range -25°C - 45°C (-13°F - 113°F)

Warranties and Compliances

  • Compliances UL 1741, IEEE 929
  • CSI Listed Yes

This web page is not the manufacturer's official data sheet and is not endorsed by the manufacturer in any way. For an official data sheet, please go to SMA's website.