SIBA HBC Ceramic Cartridge Fuse Type gR SIBA cylindrical ultra-rapid fuses are available in six different sizes. They can be fitted with or without a built-in striker pin for fuse blown indication or operation of microswitches. High interrupting rating up to 300 kA Voltage rating AC 250 V to AC 1000 V Protection of Power Semiconductors according to IEC 60269-1 and -4 Available with integrated striker pin Classes according to IEC 60269-4 and DIN VDE 0636-40 Fuse-holder / fuse-clips and accessories are available Standards IEC 60269-4; DIN VDE 0636 Teil 40 and UL248-13 Approvals uR