Blue Sea 6 Circuit Blade Fuse Block with Negative Bus & Cover

The Blue Sea Systems ST Blade Fuse Holder – 6 Circuits with Negative Bus & Cover is a premium marine-grade DC fuse distribution block designed to provide safe, organised, and reliable circuit protection for boats, yachts, caravans, RVs, and off-grid electrical systems. Featuring six individually fused circuits, an integrated negative bus, and a durable protective snap-on cover, it offers a professional solution for distributing power while keeping electrical installations neat and easy to service.

Manufactured by Blue Sea Systems, a globally recognised leader in marine electrical products, this fuse block is engineered for demanding marine environments. It features tin-plated copper bus bars and fuse clips for maximum conductivity and corrosion resistance, ensuring long-term reliability in saltwater conditions. The integrated negative bus eliminates the need for a separate grounding bus, simplifying wiring and reducing installation time.

The fuse holder accepts standard ATO® and ATC® blade fuses, making replacements quick and easy anywhere in New Zealand. Rated for 100A total capacity and 30A per individual circuit, it is ideal for protecting navigation lights, VHF radios, chartplotters, bilge pumps, lighting, refrigeration, USB outlets, and other onboard accessories. The clear insulating cover protects against accidental short circuits, stores spare fuses.

Whether you're building a new electrical system or upgrading an existing installation, the Blue Sea Systems 6 Circuit Fuse Holder provides the quality, safety, and durability trusted by marine professionals worldwide.

Key Features

• Genuine Blue Sea Systems ST Blade Fuse Block
• 6 individually fused circuits
• Integrated negative bus
• Accepts ATO® and ATC® blade fuses
• Transparent snap-on protective cover
• 100A total current capacity
• 30A maximum per circuit
• Tin-plated copper bus bars and fuse clips
• Marine-grade corrosion-resistant construction
• Spare fuse storage within the cover
• Suitable for 12V and 24V DC systems
• ABYC and USCG compliant cover design

The protective cover includes storage for spare fuses and helps satisfy ABYC and USCG insulation requirements, making it ideal for professional marine installations.

Why Buy from Barton Marine NZ?

At Barton Marine NZ, we supply genuine Blue Sea Systems electrical products trusted by New Zealand boat owners, marine electricians, and boat builders. The ST Blade 6 Circuit Fuse Holder delivers professional-grade circuit protection while keeping your electrical system organised, safe, and easy to maintain.

Perfect for:

• Trailer boats
• Sailing yachts
• Launches
• Fishing boats
• Catamarans
• Motorhomes
• Caravans
• Off-grid solar systems
• Marine electronics installations
• Electrical upgrades

Technical Specifications

Published specifications include 6 circuits, 100A total capacity, 30A per circuit, 32V DC maximum voltage, and an integrated negative bus with corrosion-resistant tin-plated copper construction.

Common Applications

The Blue Sea 6 Circuit Fuse Holder is ideal for:

• Marine electrical distribution
• Navigation lights
• Bilge pumps
• VHF radios
• Chartplotters
• Fish finders
• Cabin lighting
• Refrigeration systems
• USB charging circuits
• Auxiliary accessories

Performance Benefits

The Blue Sea Systems ST Blade Fuse Holder provides:

• Safe and reliable circuit protection
• Professional wiring layout
• Reduced wiring clutter
• Excellent corrosion resistance
• Easy fuse replacement
• Simplified troubleshooting
• Fast, tidy installation
• Long service life in harsh marine environments

Its integrated negative bus reduces the number of separate wiring components required, creating a cleaner, more reliable installation while making future maintenance significantly easier.

Note: Black circuit label stickers as per image are not supplied with the box