MEGA or AMG Fuse Safety Block. Ignition protected for installation aboard gasoline or diesel powered boats. Sealed cover protects fuses from the harsh marine environment. Insulating cover satisfies ABYC/USCG insulation requirements. Cover breakouts allow wire access in any direction. 300A maximum with 2/0 cable. Accepts Blue Sea Systems Square Format standard or custom label. Fuses sold separatelyWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.