Design a PV System with the SMA SB 1800U SBD

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 SB 1800U SBD inverter. To compare this to other PV inverters, click here.

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DC Electrical Properties

  • Maximum Input Current 12A
  • Start Voltage 156V
  • Max DC Input Voltage 400V
  • Peak Power Tracking Voltage 156V - 350V
  • Number of MPPTs 2
  • MPPTs Can Be Paralleled No
  • Maximum Current per MPPT 12A
  • Operating Voltage Range 156V - 400V
  • Polarity of Ground Negative
  • DC Disconnect No
  • Number of Modules Per Inverter 4
  • Includes Fuses for String Inputs No
  • Max Rating for String Fuses data not available
  • Rating of Included String Fuses not applicable
  • DC Input Wire Gauge Range 14 AWG – 10 AWG
  • Integrated DC Arc Fault Protection No

AC Electrical Properties

  • Rated Power Output 1800W
  • Compatible Utility Voltages 240V
  • Peak Efficiency 93.6%
  • Weighted Efficiency 91.5%
  • Maximum Output Current 15A
  • Max OCPD rating 20A
  • AC Disconnect No
  • AC Input Wire Gauge Range 14 AWG – 10 AWG
  • Sleep Consumption 1W
  • Standby Consumption 1W

Mechanical Characteristics

  • Height 11.6in (295mm)
  • Width 17.1in (434mm)
  • Depth 8.4in (214mm)
  • Weight 60lb (27.2kg)
  • CSI-Approved Built-in Meter Yes
  • NEMA Enclosure Rating NEMA 4X
  • Cooling Method Natural Convection

Environmental Constraints

  • Ambient Temperature Range -13°F - 140°F (-25°C - 60°C)

Warranties and Compliances

  • Compliances UL 1741
  • 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.