SCLR 4 | Class RK1
Class RK1 are non-renewable fuses that conform to UL 198E. Current ratings range from 0A to 600A, with voltage ratings of 250VAC and 600VAC (DC ratings are also available). They have an interrupting rating of 200kA rms symmetrical (300kV symmetrical also available) and are closely related to the RK1 fuse.