--- product_id: 10705401 title: "Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A" brand: "blue sea systems" price: "€ 67.69" currency: EUR in_stock: true category: "Blue Sea Systems" url: https://www.desertcart.at/products/10705401-blue-sea-systems-2151-dual-mrbf-terminal-fuse-block-30 store_origin: AT region: Austria --- # 300A max current 5/16" terminal stud Weatherproof design Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A **Brand:** blue sea systems **Price:** € 67.69 **Availability:** ✅ In Stock ## Summary > ⚡ Fuse your circuits with confidence — power, protection, and precision in one sleek block! ## Quick Answers - **What is this?** Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A by blue sea systems - **How much does it cost?** € 67.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/10705401-blue-sea-systems-2151-dual-mrbf-terminal-fuse-block-30) ## Best For - blue sea systems enthusiasts ## Why This Product - Trusted blue sea systems brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Insulating cap prevents accidental shorts, keeping your system secure - • **Compact Yet Mighty:** Fits tight spaces without compromising on fuse capacity - • **Stack & Save Space:** Innovative isolated stud design allows terminal stacking - • **Powerhouse Protection:** Handles up to 300A for your high-demand circuits - • **Built for the Elements:** Weatherproof and ignition protected for harsh marine environments ## Overview The Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block delivers robust 300A circuit protection in a compact, weatherproof design. Featuring a unique isolated stud for terminal stacking and ignition protection, it’s engineered for demanding DC applications like inverters, windlasses, and bow thrusters. Ideal for professionals seeking reliable, space-saving fuse solutions in harsh environments. ## Description New isolated stud design uses standard M8 (5/16") hardware and permits stacking of terminals Compact, high-amp fuse-Appropriate for DC Main, inverter, windlass and bow thruster circuit protection Provides high current protection in tight space constraints. ## Features - Voltage Max Operating: 58V DC, Amps Max Operating: 300A per block, Terminal Fuses Avail.: 30A-300A, Terminal Stud Size: 5/16"-18 (8mm), Mounting Hole Size: #10 (5mm)3/8" - Compact, high-amp fuse—appropriate for DC Main, inverter, windlass, and bow thruster circuit protection - Weatherproof – suitable for small open-cockpit boats and other harsh environments - Insulating cap prevents accidental shorts - Ignition protected when used with MRBF fuses - Fuses sold separately ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002INJXO6 | | Best Sellers Rank | #10,009 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Fuse Blocks (Tools & Home Improvement) #5 in Fuse Blocks (Industrial & Scientific) | | Brand Name | Blue Sea Systems | | Color | Double Fuse | | Connector Type | Screw | | Current Rating | 300 A | | Customer Reviews | 4.7 4.7 out of 5 stars (270) | | Global Trade Identification Number | 00632085021511 | | Included Components | Item | | Item Dimensions W x H | 2.5"W x 3.5"H | | Item Type Name | fuse boxes | | Item Weight | 4.8 ounces | | Manufacturer | Blue Sea Systems | | Material Type | Plastic | | Model | 2151 | | Mounting Type | 3/8 inch threaded mount | | Number Of Contacts | 2 | | Number Of Poles | 2 | | Number of Items | 1 | | Number of Positions | 2 | | Part Number | 2151 | | UPC | 632085021511 | | Voltage | 58 volts_of_direct_current | | Warranty Description | As labeled | ## Product Details - **Brand:** Blue Sea Systems - **Color:** Double Fuse - **Connector Type:** Screw - **Current Rating:** 300 A - **Material:** Plastic - **Mounting Type:** 3/8 inch threaded mount - **Number Of Contacts:** 2 - **Number Of Poles:** 2 - **Product Dimensions:** 2.5"W x 3.5"H - **Voltage:** 58 volts_of_direct_current ## Images ![Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A - Image 1](https://m.media-amazon.com/images/I/41klN7e1b+L.jpg) ![Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A - Image 2](https://m.media-amazon.com/images/I/41aMH9iK-ZL.jpg) ![Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A - Image 3](https://m.media-amazon.com/images/I/61iQg3HoniL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Frequently Bought Together - Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A - Blue Sea Systems Terminal Fuses --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/10705401-blue-sea-systems-2151-dual-mrbf-terminal-fuse-block-30](https://www.desertcart.at/products/10705401-blue-sea-systems-2151-dual-mrbf-terminal-fuse-block-30) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-09-07*