Blue Sea Systems 5056100 ST Blade Water-Resistant Fuse Block with Manual Cover

The Blue Sea Systems 5056100 is a compact, water-resistant ST-Blade fuse block designed to provide reliable circuit protection for marine, RV, and powersports electrical systems. This 4-circuit fuse block accepts standard ATO/ATC fast-acting blade fuses and features a manual cover with convenient wing screws for tool-free access, meeting ABYC compliance standards.

Key Features:

• Water-resistant construction protects against moisture and corrosion in harsh environments
• Accepts ATO and ATC fast-acting blade fuses plus ATO/ATC-style low-profile circuit breakers
• Tool-free wing screw design allows quick access to fuses without tools
• Tin-plated copper bus bars and fuse clips ensure excellent conductivity and corrosion resistance
• Accommodates input wire from 4 AWG to 8 AWG and load wires from 10 AWG to 16 AWG
• Standard ring or spade-type terminals for simple wiring with common tools
• Includes 3 wire plugs to maintain water-resistant rating when using fewer than 4 circuits
• Nests with other Blue Sea ST-Blade fuse blocks and 100A busbars for organized installations
• Integrated spare fuse and fastener storage in cover
• Four write-on circuit labels included for easy identification

Technical Specifications:

• Maximum voltage: 32V DC
• Number of circuits: 4
• Bus bar material: Tin-plated copper
• Mounting: 1/4 inch (6mm) screw holes
• Terminal screws: Four #8-32 with captive star lock washers
• Meets ABYC/USCG insulation requirements

Package Includes:

• 5056100 fuse block with cover
• Four write-on circuit labels
• Three wire plugs
• Instruction manual

This fuse block provides professional-grade circuit protection in a compact footprint, ideal for upgrading or organizing electrical systems in boats, RVs, and other 12V/24V DC applications.