

Blue Sea 5056 ST-Blade Water Resistant Fuse Block w/Cover
$85.99 $77.39
Weight | 0.65 lbs |
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5056 ST-Blade Water Resistant Fuse Block with Cover
Provides water-resistant circuit protection for ATO/ATC fuses & circuit breakers in a compact footprint. The single side nesting design allows for wire entry from one side to maximize space.
Features:
- Water-resistant design with standard ring or fork type terminals allows for simple wiring with standard tools
- Accepts a wide range of wire sizes
- Includes 3 wire plugs to maintain water resistant rating if less than 4 loads are required
- Accepts ATO and ATC fast-acting blade fuses
- Accepts ATO/ATC-Style Low Profile Circuit Breakers
- Nests with other ST-Blade Water-Resistant Fuse Blocks and Water-Resistant 100A Bus Bars to reduce wire
- Insulating cover meets ABYC/USCG insulation requirements
- Tin-plated copper busses and fuse clips
- Includes four write-on circuit labels
- Small format standard and custom labels available
- Spare fuse and fastener storage in cover
Specifications:
- Amperage: 80A per block/25A per circuit
- Maximum Voltage: 32V DC
- Bus Material: Tin-Plated Copper C11000
- Mounting Holes: Clearance for 1/4″ (6mm) screws
- Screw Terminal Type: #8-32 Screws with captive star lock washer
- Wire Size: (1) 8 AWG to 4 AWG – Input/(5) 16 AWG to 10 AWG – Load


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We ship via UPS, FedEx, and USPS . Orders are processed in 1–2 business days with typical delivery in 1–5 business days .
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Returns accepted within 30 days of delivery. Items must be unused and in original packaging.
- Mistaken or damaged cargo? We’ll handle return shipping.
- Changed your course? Return shipping is on you.
- Report defects or damage within 7 days for a free exchange.
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Refunds go back to your original payment method within 5–7 business days after inspection.
📨 Contact the Crew
Questions about your order? Drop anchor at sales@marineelec.com .