Blue Sea Systems 5163, is an ANL fuse - 750 Amp.  ;
Features:
- Incident proof (conforms to SAE J1171) - safe for installation aboard gasoline powered boats (35-500 Amp only)
- Silver plated clutch blades for corrosion resistance
- Visible indication on exploded state
- 6,000 Ampere Interrupt Capacity (AIC) meets ABYC requirements for main DC circuit protection on large battery banks
- For use with Blue Sea Systems ANL fuse blocks