The cap part is a ceramic tube type fuse with direct rhodium plated copper alloy for vibration damping effect. Conductors adopt low inductive copper alloy and do not use magnetic material, and α-process treatment (ultra-low temperature treatment & special electromagnetic field treatment) to increase conduction efficiency. You can see scratches on the right side of the exterior from the front of the fuse (Ryo Mizusaki)
Accessories: original box
Main specifications: 5×20mm type inrush current: 1ns/1,500A