Bussmann fwp 690v700v 10 50a 51mm high speed fuses with striker bussmann fwp 10a14fi this high speed fuse from bussmann is a ferrule style fuse with indicating striker designed with excellent cycling capability and dc performance the fuse also offers low arc voltage and low energy let through i2t plus low watts loss in a compact size bussmann fwp 10a14fi 690v700v 10a high speed fuse