The BK/ABC-6-R is a fast-acting ceramic tube fuse designed for reliable circuit protection in electrical systems. It features a voltage rating of 250V AC (125V DC), with an interrupting capacity of 10,000 amps at both AC and DC, and a typical DC cold resistance of 0.021 O. The fuse exhibits fast-acting characteristics with a 4-hour minimum opening time at 100% of rated current, 60 minutes maximum at 135%, and 120 seconds maximum at 200% of rated current. With a typical pre-arc I²t value of 58 A²s and a voltage drop of 0.19 mV at rated current, this fuse is suitable for industrial and commercial applications requiring precise overcurrent protection. The 1/4 x 1 1/4" ceramic tube construction with lead diameter of 1.02 mm (for 6A rating) ensures compatibility with standard fuse holders and provides excellent thermal stability.