Microinverter SM-MI-250-EU#

Ubiquiti Networks sunMAX Microinverter integrates into the sunMAX Solar Panel as an independent power generation unit. The Microinverter converts the DC power from the solar panel into AC power that can be connected directly to your home. Ubiquiti’s cloud‑based sunMAX software provides monitoring capability for desktops and mobile devices.

The Microinverter provides multiple benefits including:

  • Maximizes power for individual solar panels
  • Eliminates high‑voltage DC wiring for a safer solar installation
  • Lower installation cost
  • Higher overall system reliability

Technical Specification:#

Dimensions 198 x 231 x 43.1 mm (7.80 x 9.09 x 1.70")
Weight 1.5 kg (3.31 lb)
Cooling Natural Convection
Enclosure Environmental Rating NEMA 3R
Communication Bluetooth Low Energy (BLE)
Integrated Ground The DC circuit meets the requirements for ungrounded PV arrays in NEC 690.35.
Equipment ground is provided in the cable. No additional GEC or ground is required.
Certifications and Standards IUL1741/IEEE1547, FCC Part 15 Class B, CAN/CSA-C22.2 NO. 0-M91, 0.4-04, and 107.1-01

DC Input Data#

Max. Input Power 260W
Max. Input DC Voltage 45V
Peak Power Tracking Voltage 23-32V
Min./Max. Start Voltage 24-45V
Max. DC Short Circuit Current 9A


CEC Weighted Efficiency 95%
Peak Inverter Efficiency 95.5%
Nighttime Power Consumption 120mW

AC Output Data#

Peak Output Power 250W
Rated (Continuous) Output Power 250W
Maximum Output Current 1.05A
Nominal Voltage/Range 240V (211-264V)
Nominal Frequency/Range 60 Hz (59.3-60.5 Hz)
Power Factor > 0.95
Maximum Units Per 20A Branch Circuit 16

For complete information, click here. Summarized sunMAX Hardware Warranty information is listed below.

  • Workmanship Warranty (defects in materials and workmanship)
    • Panels - 5 Years
    • Microinverter - 10 Years
    • Other - 1 Year

  • Performance Guarantee (against underperforming panels)
    • 90% - Years 1-10
    • 80% - Years 11-25

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« This page (revision-3) was last changed on 14-kwi-2016 10:14 by mszczygielski