Blue Sea Systems ST Glass Fuse Block with Negative Bus Features Clear insulating cover with label recesses for accept Large Format Labels Cover insulates all conductive parts, satisfying ABYCUSCG requirements and storing spare fuses Tin-plated copper buses and Phosphor Bronze fuse clips give 30 Ampere rating per circuit Accepts AGC Fast Acting, MDL Time-Delay and all other 3AG Glass Fuses Weight 0.55 0.25 6 circuit with negative bus California Residents WARNING Cancer and Reproductive Harm - P65