The BK/GDC-6.3A is a time-delay, low breaking capacity fuse in a 5x20mm glass tube package. It has a current rating of 6.3A and a voltage rating of 250V AC. Key electrical characteristics include an interrupting rating of 63A, a typical DC cold resistance of 0.0071 Ω, and a typical melting I²t of 237.6 A²s. Designed to meet IEC 60127-2 standards, this fuse is ideal for applications requiring overcurrent protection with a time-delay to prevent nuisance tripping from temporary inrush currents.