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Power One Aurora UNO 2.0 and 2.5Power One Aurora UNO

The Power One aurora UNO-2.0-I and UNO-2.5-I are the latest single phase string inverters in the Aurora range. A new-look inverter but packed with Power-One’s proven high performing technology. The new look inverter has new features including a special built-in heat sink compartment and front panel display system.
The smallest of Power-One’s outdoor range, these new products are the right size for the average rooftop installation. This rugged outdoor inverter has been designed as a completely sealed unit to withstand the harshest environmental conditions.
The high speed MPPT offers real-time power tracking and improved energy harvesting.
Despite the isolated operation, the Power One Aurora UNO-2.0-I and UNO-2.5-I feature an efficiency of 96.3%. The wide input voltage range makes the inverter suitable to low power installations with reduced string size.


  • Each inverter is set on specific grid codes which can be selected in the field
  • Single phase output
  • Wide input range
  • High speed and precise MPPT algorithm for real time power tracking and improved energy harvesting
  • Flat efficiency curves ensure high efficiency at all output levels ensuring consistent and stable prformance across the entire input voltage and output power range
  • Outdoor enclosure for unrestricted use under any environmental conditions
  • RS-485 communication interface (for connection to laptop or datalogger)
  • Compatible with PVI-RADIOMODULE for wireless communication with Aurora PVI-DESKTOP

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Block Diagram of UNO-2.0-I and UNO-2.5-I

Power One Aurora UNO Block Diagram[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column width=”1/2″][vc_column_text]

UNO-2.0-I-OUTD Efficiency Curve

Power One Aurora UNO 2.0 Efficiency Curve[/vc_column_text][/vc_column][vc_column width=”1/2″][vc_column_text]

UNO-2.5-I-OUTD Efficiency Curve

Power One Aurora UNO 2.5 Efficiency Curve[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column width=”1/1″][vc_column_text]

Product Specifications

Input Side
Absolute Maximum DC Input Voltage (Vmax,abs) 520 V
Start-up DC Input Voltage (Vstart) 200 V (adj. 120…350 V)
Operating DC Input Voltage Range (Vdcmin…Vdcmax) 0.7 x Vstart …520 V
Rated DC Input Power (Pdcr) 2100 W 2600 W
Number of Independent MPPT 1
Maximum DC Input Power for each MPPT (PMPPTmax) 2100 W
Linear Derating From MAX to Null
[530V≤VMPPT ≤580V]
2600 W
Linear Derating From MAX to Null
[530V≤VMPPT ≤580V]
MPPT Input DC Voltage Range (VMPPTmin,f … VMPPTmax,f) at Pacr 165…470V 205…470V
DC Power Limitation for each MPPT with Independent
Configuration of MPPT at Pacr , max unbalance example
Not applicable
Maximum DC Input Current (Idcmax) / for each MPPT (IMPPTmax) 12.8 A / 12.8 A
Maximum Input Short Circuit Current for each MPPT 16.0 A
Number of DC Inputs Pairs for each MPPT 2
DC Connection Type Tool Free PV Connector WM / MC4
Input Protection
Reverse Polarity protection Yes, from limited current source
Input Over Voltage Protection for each MPPT – Varistor 2
Photovoltaic Array Isolation Control According to local standard
DC Switch Rating for each MPPT (-S Version) 16 A / 600 V
Output Side
AC Grid Connection Type Single phase
Rated AC Power (Pacr) 2000 W 2500 W
Maximum AC Output Power (Pacmax) 2200 W 2750 W
Rated AC Grid Voltage (Vac,r) 230 V
AC Voltage Range 180…264 V(1)
Maximum AC Output Current (Iac,max) 10.0 A 12.0 A
Rated Output Frequency (fr) 50 Hz
Output Frequency Range (fmin…fmax) 47…53 Hz (2)
Nominal Power Factor (Cosphiac,r) > 0.995 (adj. ± 0.95)
Total Current Harmonic Distortion < 3%
AC Connection Type Screw terminal block
Output Protection
Anti-Islanding Protection According to local standard
Maximum AC Overcurrent Protection 15.0 A
Output Overvoltage Protection – Varistor 2 (L – N / L – PE)
Operating Performance
Maximum Efficiency (ηmax) 96.3%
Weighted Efficiency (EURO/CEC) 96.0% / –
Feed In Power Threshold 24.0 W
Stand-by Consumption < 8.0 W
Wired Local Monitoring PVI-USB-RS485_232 (opt.), PVI-DESKTOP (opt.)
Remote Monitoring PVI-AEC-EVO (opt.), AURORA-UNIVERSAL (opt.)
Wireless Local Monitoring PVI-DESKTOP (opt.) with PVI-RADIOMODULE (opt.)
User Interface Graphic display
Ambient Temperature Range -25…+60°C (-13…+ 140°F) with derating above 45°C (113°F)
Relative Humidity 0…100 % condensing
Noise Emission < 50 db(A) @ 1 m
Maximum Operating Altitude without Derating 2000 m / 6560 ft
Environmental Protection Rating IP 65
Cooling Natural
Dimension (H x W x D) 518mm x 367mm x 160mm / 20.4” x 14.4” x 6.3”
Weight < 17 kg / 37.4 lb
Mounting System Wall bracket
Isolation Level HF transformer
Marking CE
Safety and EMC Standard EN 50178, AS/NZS3100, AS/NZS 60950, EN61000-6-1,
EN61000-6-3, EN61000-3-11, EN61000-3-12
Grid Standard Enel Guideline, VDE 0126-1-1, G83/1, EN 50438, RD1663, AS 4777
Available Products Variants
With DC Switch UNI-2.0-I-OUTD-S UNI-2.5-I-OUTD-S

1. The AC voltage range may vary depending on specific country grid standard
2. The Frequency range may vary depending on specific country grid standard[/vc_column_text][/vc_column][/vc_row]