Hobart GPU-600 Solid State ground power units provide precisely regulated 28.5 volt DC service with minimum noise. These reliable solid state GPUs are equipped for engine starting in the current limiting “soft start” mode recommended by most airframe manufacturers. Specifically developed in response to customer needs, the GPU-600 supplies the fully regulated, dependable power required by today’s more demanding aircraft. The GPU-600 delivers 600 amperes continuous to 2000 amperes peak for starting.