FCX solid-state power supplies provide regulated 28.5VDC power with minimal noise. The power supplies are equipped with an adjustable current limiting feature for engine starting. Each model is designed with high power SCR modules to allow for precise control of the output voltage. The units also have soft start to allow the power supply to ramp to nominal output voltage. Power supplies are built in a mobile NEMA 3R equivalent enclosure for easy installation for interior and exterior environments.