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The Triad Magnetics ABU125-540 is a single-output AC/DC power supply designed for industrial and telecommunications applications requiring high reliability. This open-frame converter operates with universal AC input voltage ranging from 90 to 264 VAC and can also accept DC input from 127 to 373 VDC.
Key electrical specifications include a nominal output voltage of 54V with a tolerance of ±2.0%, delivering up to 87W of power in convection cooling or 106W with forced air (15 CFM fan). The efficiency is rated at 88.0%. It features adjustable output voltage within a range of 53.2 to 58.8V, Power Factor Correction (PFC), and protections such as overcurrent and overvoltage.
Designed for chassis mounting, this unit measures 127.0mm x 76.2mm x 26.7mm. The operating temperature range is -40°C to 70°C with derating. Compliance includes European EMC standards (EN55022 Class B, EN61000-3-2) and Low Voltage directive (TUV EN60950), with approval agencies CB, CE, TUV, and UL listed.
The input voltage range is 90 to 264 VAC or 127 to 373 VDC.
The output voltage is 54V with ±2% tolerance. Output power is 87W with convection cooling and 106W with a 15 CFM fan.
The operating temperature range is -40°C to 70°C with derating.
The dimensions are 127.0mm x 76.2mm x 26.7mm (5.00" x 3.00" x 1.05").
Overcurrent protection is set at 2.86 to 3.9A, and overvoltage protection at 64 to 75V.
Typical efficiency is 88%.
It is approved to CB, CE, TUV, and UL standards.