Phoenix Contact's UNO Solar is an addition to the UNO family of power supplies and was designed specifically for solar applications. This DC-to-DC power supply can utilize the high-voltage DC string voltage and convert it to 24 VDC. The advantages of the direct array connection will allow the user to target specific applications.
Advantages
- A direct connection to the array saves trenching installation costs for AC power lines
- Note that the AC power lines cannot be in the same trench as the signal lines due to possible noise coupling
- Note that a wireless solution can eliminate the trenching needs for signal lines
- Provides control power with the loss of grid power
- UNO Solar is the first array-powered supply to be approved to UL1741
- Standard for inverters, converters, controllers, and interconnect system equipment for use with distributed energy resources
- Input range is 300 VDC to 1000 VDC
- Output rated at 24 VDC / 2.5 A
- Can be wired in parallel to increase current using an UNO diode to decouple
- Powering the SOLARCHECK RSD
- Five-year standard warranty
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- Powering combiner boxes
- Powering re-combiner boxes
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- Power the inverter controls for anti-islanding requirements
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