Power-One HD28-4-A is an AC-DC switching power supply that delivers 28 VDC at 4 A. It accepts 100 VAC, 120 VAC, 220 VAC, 230 VAC, or 240 VAC input. This model provides a 28 VDC output from common mains voltages, aligning with applications that require a 28 V supply at up to 4 A from an AC source.
