Blue Sea 5032 ST Blade Fuse Block

Blue Sea 5032 — ST-Blade Split Bus Fuse Block

The ST-Blade 5032 is the fuse block that appears in nearly every serious van or off-grid build. Distributes 12V DC from your house battery to multiple circuits (fridge, lights, pumps, USB outlets, etc.) with room to grow.

Key Features

• 12 circuits split-bus configuration — run two independent DC sub-systems from one block
• ST-blade fuse format — standard automotive fuse type, easy to source replacements anywhere
• Screw terminals for clean, vibration-resistant connections
• 30A per circuit, 100A per bus — handles everything in a typical house loads panel
• Tin-plated copper bus bars — corrosion resistant for marine and humid off-grid environments

Ideal For

• Van and RV 12V house loads distribution
• Off-grid cabin DC panel builds
• Marine 12V DC systems

Pairs Well With

• Renogy LiFePO4 batteries — direct positive feed from battery positive
• Renogy charge controllers — wired to the block's main inputs

Not sure where this fits in your build? Use our free System Build Helper to plan your complete 12V electrical system in minutes.