Blue Sea Systems ST Blade Fuse Block – 4 Circuits with Ground Bus

Compact, Reliable DC Power Distribution for Marine, RV & 4WD Systems

Consolidate auxiliary electrical circuits and eliminate messy wiring with the Blue Sea Systems ST Blade Fuse Block (4 Circuits with Ground Bus). Designed for harsh marine and off-grid environments, this high-performance distribution block provides central protection for up to 4 ATO/ATC blade fuses, along with an integrated negative ground bus bar to streamline your installation.

Featuring tin-plated copper buses and screw terminals, it delivers maximum conductivity and corrosion resistance. The clear insulating cover features a clip-latch system with storage for spare fuses, while satisfaction-rated flame-retardant materials ensure maximum safety in engine bays, caravan setups, and dual-battery systems.

Key Features

• Integrated Ground Bus: Includes a common negative ground bus bar to consolidate returns and eliminate extra terminal blocks.

• 4-Fuse Circuit Protection: Accepts standard ATO and ATC fast-acting blade fuses from 1A to 30A per circuit.

• Corrosion-Resistant Components: Tin-plated copper buses and screw terminals provide superior electrical conductivity and marine-grade corrosion defense.

• Insulating Protective Cover: Clear cover satisfies ABYC/USCG safety requirements, incorporates easy-to-use write-on label recesses, and holds 2 spare fuses.

• High Amp Rating: Built to handle up to 30A maximum per circuit and 100A total continuous rating across the entire block.

Technical Specifications