Blue Sea MEGA AMG Safety Fuse Block The Blue Sea MEGAAMG Safety Fuse Block can be used on high amperage circuits on almost any boats, including gasoline and diesel powered boats. This fuse block is ignition protected and features a sealed cover to protect the fuses from harsh marine environments. The insulating cover satisfies ABYC and USCG insulation requirements. Accepts Blue Sea Systems square format standard or custom labels. Features Ignition protected Insulating cover meets ABYCUSCG insul