5103 MEGA/AMG Fuse - 150AMP Features:. Most economical fuse for 100-300 Ampere circuit protection. For use with Blue Sea Systems' MEGA/AMG Fuse Block. WARNING: 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.