Unitron designs, manufactures and services a comprehensive product line of all Electric Solid-State Frequency Converters (SSFCs), sometimes refered to as Ground Power Units (GPUs), with outputs or combination outputs of 28VDC, 270VDC and 400Hz. These SSFCs support aircraft hangar/ramp maintenance activities as well as supply electrical power for avionic repair shops, design laboratories, and product line performance testing. The 400Hz units are available in power ratings from 20kVA through 200kVA and from 180kVA through 400kVA ratings when installed as a centralized distribution system. The 28VDC power supplies or ramp maintenance/start carts are available up to 600 Amp continuous and 2000 Amp start rating. The 270VDC power supplies are rated at 30, 48, 60 and 72 kWs. All of Unitron's Aircraft Support products are available in a myriad of configurations to suit every customer need; mobile carts, trailer mount, overhead mount, and free standing. Additionally, Unitron's entire product line from 20kVA through 400kVA is available with an active IGBT power factor corrected rectifier which limits input current distortion to a maximum level of 5% or less. Both UL listing and CE marking are also provided. For further information contact JC Aviation.