The 05710007L is a 30A/600V standard Fuse Holder with thermoplastic construction, tin-plated brass combination (straight) solder and quick-connect terminals and enclosed screw knob. This 571-series panel mount fuse holder for used with 1-13/32 to 1-1/2-inch midget and class-CC fuses. Class-CC fuses holder to prevent the installation of fuses with lower voltage ratings or interrupting ratings.