Emerson 2102130484 HD Series Power Supply

The Emerson HD4830-3, part number 2102130484, is a rectifier power module from Emerson Network Power’s HD series, part of a widely deployed family of telecom rectifiers used to convert AC mains input into regulated -48VDC output for powering telecom equipment racks and charging standby battery plant. The HD-series naming convention pairs output voltage and current rating in the model code; the HD4830 designation corresponds to a 48V-class rectifier module rated at approximately 30A output, with the -3 suffix denoting a specific hardware revision. Modules of this type are installed in redundant, hot-swappable arrays within a telecom power shelf, so that individual units can be added, removed or replaced without interrupting supply to the site’s DC power bus. Emerson Network Power, now Vertiv, was and remains one of the leading suppliers of telecom rectifier and DC power system hardware globally, and HD-series modules remain widely used in operational and legacy telecom sites. Tech-Star (UK-based, shipped worldwide) supplies tested Emerson/Vertiv rectifier modules; enquire for current stock and shelf compatibility.