FUSE-440MA/1000VB1 is a 440 mA/1000V fast-acting fuse manufactured by Fluke for reliable circuit protection in electrical systems. The fuse is rated for 440 mA continuous current at 1000V maximum voltage, providing overcurrent protection in high-voltage applications. It features fast-acting characteristics, enabling rapid response to fault conditions and protecting sensitive equipment from damage. This fuse is commonly used in Fluke test and measurement instruments and other industrial equipment requiring dependable overcurrent protection at elevated voltage levels.