BK/HKT is a 1/4" x 1 1/4" panel-mount indicating fuse holder designed for secure fuse mounting on panels up to 3/16" (4.8 mm) thick. This model features a 20 Amp rating at 13-22 Volts AC with an incandescent amber lamp that illuminates when the fuse opens, providing visual indication of fuse status. The holder is vibration resistant and includes a steel nut and neoprene washer for reliable installation, with UL and CSA certifications ensuring compliance with safety standards. The octagonal knob design and temperature rating of +130°C make it suitable for industrial control panels, power distribution systems, and equipment protection applications where fuse status visibility is essential.