Profile: Failsafe Power Supplies Ltd specializes in designing & manufacturing electronic power converters for use in aerospace and marine applications. We manufacture 400Hz static frequency converters, 40Hz aircraft ground power units, 28VDC aircraft ground power units, 50/60 HZ static frequency converters and marine frequency converters. Our static frequency converters can convert between 50HZ, 60Hz & 400Hz. It features single phase & three phase outputs. It is used in avionics/aircraft equipment production line proving, submersibles, industrial plant & machinery, mobile applications and marine & motor cruisers. We provide solid state aircraft ground power units with a 400Hz output from 20KVA upto 90KVA. These are available in stationary, bridge, hanger or fully mobile versions, in both civil & military specification.