--- product_id: 82822842 title: "Dual MRBF Fuse Block – Fuse NOT Included" brand: "bay marine supply" price: "€ 45.54" currency: EUR in_stock: true reviews_count: 8 category: "Bay Marine Supply" url: https://www.desertcart.hr/products/82822842-dual-mrbf-fuse-block-fuse-not-included store_origin: HR region: Croatia --- # Max 300A IP66 Rated Dual Studs Dual MRBF Fuse Block – Fuse NOT Included **Brand:** bay marine supply **Price:** € 45.54 **Availability:** ✅ In Stock ## Summary > ⚓ Power Up Your Marine Experience! ## Quick Answers - **What is this?** Dual MRBF Fuse Block – Fuse NOT Included by bay marine supply - **How much does it cost?** € 45.54 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/82822842-dual-mrbf-fuse-block-fuse-not-included) ## Best For - bay marine supply enthusiasts ## Why This Product - Trusted bay marine supply brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Design:** Constructed with copper for superior conductivity and longevity. - • **Easy Installation:** Dual mount design with standard M8 hardware for hassle-free setup. - • **Compact Powerhouse:** Designed for tight spaces without compromising on performance. - • **Ignition Protected:** Safe for use on gasoline-powered vessels, ensuring peace of mind. - • **High Current Capacity:** Handles up to 300A, perfect for demanding marine applications. ## Overview The MRBF Terminal Fuse Block is a compact, high-amp fuse solution designed for marine applications, offering robust protection for DC circuits. With a maximum voltage rating of 58V and an amperage capacity of 30-300A, it ensures safety and reliability in tight spaces. Its ignition-protected design and IP66 rating make it ideal for use on gasoline-powered boats, meeting ABYC requirements for large battery banks. ## Description Product description Manufactured by the original OEM supplier - not a knock-off MRBF Fuse Holder can be mounted directly onto battery terminals. Compact in size, perfect for tight space installations. Interchangeable and replaceable fuses, sizes ranging from 30A to 300A. MRBF Fuse Holder can be mounted on busbars. Marine Rated battery Fuses Designed for the most demanding environment to provide high current protection for the tightest space constraints. Suitable for main and auxiliary circuit protection such as alternator outputs, starter motor inputs and accessory circuits. Alleviates having to make up a short wire to connect to a standard fuse block to the battery. Safe for installation aboard gasoline powered boats. DO NOT mount fuse directly onto battery post. Fuses should be mounted on the MRBF terminal fuse block. (See examples below) Ingress Protection: IP66, protected against powerful water jets Ignition Protected: Per SAEJ1117 Application Full range circuit protection for automotive and marine applications. The breaking capacity meets the requirements of conventional vehicle batteries and 12V, 24V and 42V electrical networks. Compact, high-amp fuse appropriate for DC Main, inverters, windlass, and bow thruster circuit protection. Provides high current protection in tight space constraints. Ignition protected when used with MRBF Terminal Fuse Blocks. Isolated stud design uses standard M8 hardware and permits stacking of terminals. Stud Size: 5/16" (M8), accepts 5/16" ring terminals Terminal Mounting Hole: 3/8" (M10) Material: Body - Ceramic; Housing & Cover: UL-rated 94V0 Thermoplastic; Ring Terminals - Tin Plated Bay Marine Supply 5191 – Single Stud Terminal Fuse Block Diagram of Single Terminal Block Dimensions of Single Terminal Block With Fuse Mounted Bay Marine Supply 2151 – Dual Stud Terminal Fuse Block Diagram of Dual Terminal Block Dimensions of Dual Terminal Block With Fuses Mounted Review: Eaton great quality - This is a quality piece of gear made by Eaton Review: This Fuse Block is easy to install and solid construction - Ensure you use quality fuses - I installed a battery, inverter, and charger in my van for camping power, and up until now my setup had no real safety devices. Using Google AI, I figured out everything I’d need, including this dual fuse block, a shunt, and a cutoff switch. I initially ordered some inferior fuses, returned them, and got high-quality ones that others have tested and recommend. Right now, I have 300A and 100A fuses installed, bus bars, and a secondary fuse block for my DC plug that runs my fridge. This dual fuse block installs directly on the positive post of your battery, and you simply slide the fuses onto the posts (they only go on one way, so pay attention). It has a solid construction, a rubber hood to protect the terminals from anything falling on them, and is more versatile than other fuse blocks I looked at. It’s even rated for marine use, which gives me extra confidence in its durability and safety. The cutoff switch and shunt add extra safety and allow me to monitor and control power more effectively. Using quality fuses is key to staying safe and ensuring everything works properly if there’s ever an issue. This setup has made managing my van’s power system much easier, safer, and more reliable. ## Features - TERMINAL FUSE BLOCK (Fuse NOT Included) – Links to MRBF Fuses & Fuse Block Kit listings can be found below in the description - MRBF Terminal Fuse Block Includes: (1) Dual MRBF Terminal Fuse Block, (1) Red Insulator Cap, (2) Washer, (2) Lock Washer, (2) M8 Hex Nut - Fuses have a Max Voltage Rating: 58V –– Fuse Holder have an Amperage Rating: 30-300A –– Fuses Holder Stud Size: M8 (5/16") –– Fuse Holder Mounting Hole: M10 (3/8") - Compact, high-amp fuse appropriate for DC Main, inverters, windlass, and bow thruster circuit protection. Provides high current protection in tight space constraints. Ignition protected when used with MRBF Terminal Fuse Blocks. Isolated stud design uses standard M8 hardware and permits stacking of terminals. - IGNITION PROTECTED – Safe for installation aboard gasoline powered boats. IP66 – Protected against powerful water jets. 10,000 AIC at 14V DC satisfies ABYC requirements for DC Main circuit protection on large battery banks. [WARNING: Do not mount fuses directly on battery terminals. Must use with Terminal Fuse Blocks.] ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B075ZGR96T | | Best Sellers Rank | #127,838 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in Fuse Blocks (Tools & Home Improvement) #23 in Fuse Blocks (Industrial & Scientific) | | Brand | Bay Marine Supply | | Brand Name | Bay Marine Supply | | Connector Type | Screw | | Current Rating | 300 Amps | | Customer Reviews | 4.7 out of 5 stars 73 Reviews | | Item Weight | 0.26 Pounds | | Manufacturer | Bay Marine Supply | | Material | Copper | | Material Type | Copper | | Mounting Type | Dual Mount | | Number Of Contacts | 2 | | Number Of Poles | 2 | | Number of Positions | 2 | | Part Number | 2151 | | Unit Count | 1 Count | | Voltage | 48 Volts | ## Product Details - **Current Rating:** 3E+2 Amps - **Connector Type:** Screw - **Number Of Contacts:** 2 - **Mounting Type:** Dual Mount - **Material:** Copper - **Brand:** Bay Marine Supply - **Voltage:** 48 Volts - **Number Of Poles:** 2 - **Number of Positions:** 2 - **Manufacturer:** Bay Marine Supply ## Images ![Dual MRBF Fuse Block – Fuse NOT Included - Image 1](https://m.media-amazon.com/images/I/71m84poAK8L.jpg) ![Dual MRBF Fuse Block – Fuse NOT Included - Image 2](https://m.media-amazon.com/images/I/41Ji8aoNATL.jpg) ![Dual MRBF Fuse Block – Fuse NOT Included - Image 3](https://m.media-amazon.com/images/I/21k7ad3z7cL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Eaton great quality *by T***Y on March 25, 2026* This is a quality piece of gear made by Eaton ### ⭐⭐⭐⭐⭐ This Fuse Block is easy to install and solid construction - Ensure you use quality fuses *by T***R on November 23, 2025* I installed a battery, inverter, and charger in my van for camping power, and up until now my setup had no real safety devices. Using Google AI, I figured out everything I’d need, including this dual fuse block, a shunt, and a cutoff switch. I initially ordered some inferior fuses, returned them, and got high-quality ones that others have tested and recommend. Right now, I have 300A and 100A fuses installed, bus bars, and a secondary fuse block for my DC plug that runs my fridge. This dual fuse block installs directly on the positive post of your battery, and you simply slide the fuses onto the posts (they only go on one way, so pay attention). It has a solid construction, a rubber hood to protect the terminals from anything falling on them, and is more versatile than other fuse blocks I looked at. It’s even rated for marine use, which gives me extra confidence in its durability and safety. The cutoff switch and shunt add extra safety and allow me to monitor and control power more effectively. Using quality fuses is key to staying safe and ensuring everything works properly if there’s ever an issue. This setup has made managing my van’s power system much easier, safer, and more reliable. ### ⭐⭐⭐⭐⭐ Smart, Neat and Safe *by D***A on October 10, 2025* Easy compliance for proper protection of battery chargers, alternators and the house panel. Sooooo much better than stacking wires in the battery terminals. ## Frequently Bought Together - Bay Marine Supply – MRBF Terminal Fuse Block (Fuse Not Included) - Dual Studs - Compact Mount for Marine Rated Battery Fuse - Bay Marine Supply – 60A Marine Rated Battery Fuse - (MRBF Terminal Fuse Only) – 58V DC Maximum IP66 - Bay Marine Supply – MRBF Terminal Fuse Block (Fuse Not Included) - Single Stud - Compact Mount for Marine Rated Battery Fuse --- ## 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.hr/products/82822842-dual-mrbf-fuse-block-fuse-not-included](https://www.desertcart.hr/products/82822842-dual-mrbf-fuse-block-fuse-not-included) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-14*