The modular NetSure™ 5100 Series power system with 2000 watt rectifiers and DC to DC converters provides up to 600 amps of current for -48 volt systems with up to 400 amps at +24 volts or -58 volts. The basic components of the power system include the NetSure Control Unit (NCU), module mounting shelf assemblies which house the rectifiers and converters, and a modular distribution cabinet.