Blue Sea Systems ST Blade Fuse Block Compact 4-Circuit with Cover, 100 Amps

Powerful, Space-Saving DC Protection

Meet the Blue Sea Systems 5045 ST Blade Fuse Block, a compact four‑circuit solution designed to protect and organize DC power in tight spaces without sacrificing performance. It provides four fused outputs for branch circuits, making it ideal for lighting, electronics, pumps, and control modules across marine, automotive, RV, and off‑road setups.

The surface‑mount design consolidates wiring on a single side, reducing installation footprint and simplifying routing in dashboards, consoles, and electrical panels. With compatibility for standard ATO or ATC fuses and a total block rating up to 100 amps (30 amps per circuit), it offers flexible protection for a range of loads.

Clear protection and labeling

The rigid, clear insulating cover shields energized terminals from accidental contact, debris, and exposure, while providing space for circuit labels and quick identification during maintenance. This helps technicians diagnose issues at a glance and keeps installations tidy.

• Tin‑plated copper buses deliver low resistance and steady performance.
• Durable fuse clips resist corrosion in marine and rugged vehicle environments.

Designed to professional standards, the 5045 ST Blade Fuse Block delivers dependable circuit protection and clean power distribution where space is precious and reliability matters most.

Real‑world benefits

• Compact footprint frees valuable dashboard or console space.
• Four fused outputs enable organized distribution to lighting, electronics, pumps, and controllers.
• Clear labeling and a protective cover simplify maintenance and troubleshooting.
• Marine-grade materials and corrosion resistance extend long‑term service life.

Whether you’re outfitting a sailboat, a camper, a rugged off‑road vehicle, or a compact power panel, this fuse block helps you build a neat, safe, and scalable DC power system. Remember, benefits are possible outcomes dependent on your specific setup and usage; the block is designed to support reliable, organized power distribution.