HP 550W Hot-Plug Power Supply for ProLiant DL560 (280126-001) is a genuine HP server power supply designed for the HP ProLiant DL560 server. It provides up to 550 watts of rated output power and supports a wide 90–264 VAC input range with automatic voltage switching. HP documentation identifies 280126-001 as the 550W hot-plug power-supply assembly for the DL560.
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Part Number: 280126-001
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Manufacturer: HP / Hewlett-Packard
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Product Type: Server Power Supply Unit (PSU)
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Power Output: 550W maximum rated output
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Power Supply Type: Hot-Plug
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Input Voltage Range: 90–264 VAC
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Input Frequency: 47–63 Hz (50/60 Hz)
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Input Voltage Support: 100V / 115V / 208V / 220V / 230V / 240V
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Maximum Input Power: Up to 696W at 100V
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Maximum Rated VA: Up to 710 VA at 100V
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Power Factor: 0.98
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Efficiency: Up to approximately 83%, depending on input voltage
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Maximum Inrush Current: 100A peak
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Application: Server power delivery and redundant power operation
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Compatible Server: HP ProLiant DL560 / DL560 G1
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System Configuration: Supports DL560 configurations with hot-plug power supplies
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Related Spare Kit: 280126-B21
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Related Spare Part: 300892-001
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Model: Delta DPS-550CB
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Dimensions: Approximately 265 × 115 × 55 mm
