Blue Sea Systems ST Blade Fuse Block Compact 4 Circuit With Cover, 100 Amps, 5045

The Blue Sea Systems 5045 ST Blade Fuse Block is a compact and reliable solution for protecting and organizing DC electrical systems where space is limited but performance cannot be compromised. Designed to provide four fused outputs for DC branch circuits, this fuse block supports safe and orderly power distribution for accessories such as lighting, electronics, pumps, and control modules in marine, automotive, RV, and off‑road vehicle applications. The surface‑mount design with single‑sided terminals reduces installation footprint, simplifies wire routing, and improves accessibility in tight dashboards, consoles, and electrical panels. This ST‑series fuse block is compatible with standard ATO or ATC blade fuses and is rated for up to 100 amps total per block, with support for up to 30 amps per individual circuit, making it suitable for a wide range of DC loads. A clear insulating cover protects energized terminals from accidental contact, debris, and environmental exposure while also providing space for clear circuit labeling and easy identification during maintenance or troubleshooting. Internally, tin‑plated copper buses and fuse clips ensure low resistance, excellent conductivity, and long‑term corrosion resistance in demanding environments. Built to professional standards, the Blue Sea Systems 5045 ST Blade Fuse Block delivers dependable circuit protection and clean power distribution in compact DC installations where reliability and organization matter most.

• FOUR CIRCUIT DESIGN: Provides four fused outputs for DC branch circuits, allowing safe, organized power distribution for accessories, electronics, lighting, and other onboard systems
• COMPACT FOOTPRINT: Space‑saving surface‑mount format with all terminals located on one side, simplifying installation in tight spaces while improving wire routing and overall layout organization
• 100 AMP BLOCK RATING: Supports up to 30 Amps per circuit with ATO or ATC fuses
• INSULATING COVER: Clear insulating cover protects terminals from accidental contact, reduces short-circuit risk, and provides space for circuit identification labels
• CORROSION RESISTANT: Tin‑plated copper buses and durable fuse clips resist corrosion and ensure long‑term conductivity in harsh automotive or marine environments