About D-Link DPS-500A 180W Redundant Power Supply 140W Redundant Power Supply Specifications: Dimensions: 172 x 257 x 43 mm Panel size: 196 x 52 mm Weight: 1.51 kg Input Voltage Range: 90 to 264 V AC Input Frequency: 47 to 63 Hz Max Input Current: 1A at 240 V AC Max Inrush Current: 60 A at 230 V AC Efficiency: 75 % Operating Temperature: 0 to 50 °C Storage Temperature: -45 to 85 °C Operating Humidity: 10 to 90% RH Storage Humidity: 10 to 95% RH MTBF: 400,000 hours Compatibility: DGS-3000-28LP1, DGS-3000-28X1, DGS-3000-28XMP1, DGS-3000-52X1, DGS-3120-48TC, DGS-3130-30TS/SI, DGS-3130-30S/SI, DGS-3130-54TS/SI, DGS-3130-54S/SI, DGS-3420-28TC, DGS-3420-28SC, DGS-3420-52T, DGS-3620-28TC, DGS-3620-28SC, DGS-3620-52T, DGS-3630-28SC, DGS-3630-28TC, DGS-3630-52TC Features Connect to a variety of D-Link Gigabit switches Provide backup power for the switch’s built-in power supply Over-current protection LED status indicators Can be installed as stand-alone power supply units or mounted in a 19-inch multi-slot chassis Hot-swappable when installed in a chassis Solid metal case housing
