The Blue Sea Systems M-Series Mini Battery Switches are 300 AMP continuous rating for outboards and small diesel or gasoline engines. They have tin-plated copper studs for corrosion resistance and maximum conductivity as well as one-piece terminal stud design that will never loosen over time. 7/8" stud length accepts multiple cable terminals and isolating cover with three snap-in side pieces protects rear contacts and allows wire access in any direction. Case design allows surface, rear, or front panel mounting options and studs accept 3/8" (M10) ring terminals. They are labeled with international legends - 6 ICON label set included for circuit identification (6005 includes illustrated ON-OFF label only). Ingress Protection (IP) Rating of IP66.