--- product_id: 580618692 title: "12V-48V Bus Bar Power Distribution Block 300 Amp Bus Bar Copper Made with 4 x M8 Terminal Block Studs,Heavy-Duty Module Busbar Junction Block with Fuse for Cars RVs Ships Yachts -2PCS" brand: "aulesse" price: "82717CFA" currency: XOF in_stock: true reviews_count: 13 category: "Aulesse" url: https://www.desertcart.sn/products/580618692-12v-48v-bus-bar-power-distribution-block-300-amp-bus store_origin: SN region: Senegal --- # 300A max current capacity 4 x M8 heavy-duty terminal studs Flame-retardant insulated nylon base 12V-48V Bus Bar Power Distribution Block 300 Amp Bus Bar Copper Made with 4 x M8 Terminal Block Studs,Heavy-Duty Module Busbar Junction Block with Fuse for Cars RVs Ships Yachts -2PCS **Brand:** aulesse **Price:** 82717CFA **Availability:** ✅ In Stock ## Summary > ⚡ Power up your ride with the ultimate 300A bus bar – where durability meets sleek efficiency! ## Quick Answers - **What is this?** 12V-48V Bus Bar Power Distribution Block 300 Amp Bus Bar Copper Made with 4 x M8 Terminal Block Studs,Heavy-Duty Module Busbar Junction Block with Fuse for Cars RVs Ships Yachts -2PCS by aulesse - **How much does it cost?** 82717CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/580618692-12v-48v-bus-bar-power-distribution-block-300-amp-bus) ## Best For - aulesse enthusiasts ## Why This Product - Trusted aulesse brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Includes a 300A ANL fuse and flame-retardant base to protect your circuits and prevent shorts. - • **Rugged Reliability:** Crafted from corrosion-resistant zinc alloy, brass, and stainless steel for ultimate durability in harsh environments. - • **Powerhouse Performance:** Handles up to 300A with ease, perfect for high-demand automotive and marine systems. - • **Effortless Organization:** 4-post design keeps wiring neat, tidy, and easy to manage—no more messy cables. - • **Plug & Play Installation:** Simple screw-mount setup with clear polarity markings for fast, foolproof wiring. ## Overview The AULESSE 12V-48V Bus Bar Power Distribution Block is a heavy-duty, 300A-rated copper busbar with 4 M8 terminal studs, designed for clean, safe, and efficient power distribution in cars, RVs, yachts, and marine applications. Featuring corrosion-resistant materials, a flame-retardant insulated base, and an included 300A ANL fuse, it ensures reliable performance and protection in demanding environments. Its compact, modular design simplifies wiring organization and installation, making it a must-have for professionals seeking robust and tidy electrical setups. ## Description Product Description AULESSE Power Distribution Block Bus Bar 5/16 inch Terminal Stud 4 Post with 300A ANL Fuse,Cover and Ring Terminals for Marine Automotive and Solar Wiring RV Boat 4 x 5/16" (M8) stud terminals busbar design, rated 300A when work with 12v dc supplier, and can work in max 48v dc power supplier circuit. The power Junction block holds wide cables securely to keep the wires neat and organized. Feature Durable Base: The nylon-reinforced base of this electrical distribution block ensures that it can withstand the wear and tear of daily use, providing a solid foundation for your circuit. Overcurrent Protection: Equipped with a 300A fuse, this distribution block offers overcurrent protection to prevent dangerous electrical situations from occurring, providing peace of mind and safety for users. High Current Capacity: The copper bars in this distribution block can handle up to 300A of current, making it suitable for even the most demanding electrical circuits. Rust-Resistant Hardware: The stainless steel screws and nuts included with this distribution block are resistant to rust and corrosion, ensuring that they remain in good condition even in harsh environments. Insulated Bottom Plate: The insulated bottom plate of this distribution block ensures that it won't cause electrical leakage when mounted on metal surfaces, providing an additional layer of safety for users. This feature is especially important for marine applications, where the potential for electrical shock or other hazards is high. Package includes： 1 x Power Distribution Block (Red +Black);4 x Mounting Screws;1 x 300A ANL fuse (5/16") M8 Studs & Washer Design Nuts High-current collecting rail is reinforced fireproof ABS base, fibreglass reinforced nylon base, which ensures excellent mechanical strength and durability; stainless steel screws and nuts for improved corrosion and rust resistance in salt water or corrosive environments Protect Cover & Nuts Bus bar with cover & nuts,will shelter most exposed contact areas to reduce the risks of short circuit or touch. Easy to install-just need to fix the surface of the washer nut installation can be more convenient and reliable installation. Not overloaded,Safety Highest current (300A) busbar with M8 connector bolts. Module box design for easy wiring configurations,keep wiring clean and organized M8 High Current Wiring Stud Busbar 4 Posts with 300A Fuse Review: Novel 'Cube' design for a very decent high current Bus-bar - Cube Design Bus Block/Bar These are a quite exciting /novel design that improves on the classic 'long bar' design in a couple of ways. It's easy to have cables arriving from all 4 directions, up to 2 per side . The Reds and Blacks clip together side by side if required (though now only 3 directions available on each). There are removable shutters for all sides and fixing screws are supplied that would also work for fixing through a mounting panel up to 8 or 9mm thick. Failing that appropriately longer standard M5 screws of the same design fit The big difference / main feature for me is that the main conductor bar is square meaning relatively short current paths exist between any/all of the four 'M10 ring terminal' posts, which removes an issue commonly seen in long high current bus-bars when passing power end to end. Curiously all the units supplied were marked 600A on their cover labels and, in traditional 'long bars', such a high rating normally involves a heavy copper bar 100 - 200mm long, 22mm wide by about 12mm high! By contrast, the square bar-block in these Blocks is also described as copper and was measured at about 6mm high x 50mm x50mm . The square design will allow for a smaller and more effective conductor /link but (without full load testing) I prefer the sales page's description of 400A as guidance for my DC usage. I bought them as a compact connecting solution for a 300A battery inverter circuit and on previous experience I'm pretty confident it will work well there for that purpose. A very useful find ! Overall It feels high quality, adds some novel functionality / space/weight saving and the price seems very reasonable Review: Replacement - Replacement for broken one. does the same job. ## Features - 🔴【300A Heavy Duty Junction Block】5/16" (M8) 4 studs heavy duty busbar terminal Block, the rated current of the entire electrical block is 300 A, the current of the auxiliary terminal screw is 20 A.The maximum voltage is 48 V DC. - 🔴【High-Quality Materials and Good Conductivity】Bus bar is made of zinc alloy and brass with good electrical conductivity.The busbars bolts are made of stainless steel screws and nuts, which are not easy to rust and corrosion-resistant, and can be used in humid environments such as the ocean; the insulated nylon base is flame retardant; the distribution block busbar with a protective cover protects the connecting parts from protected from damage and accidental touching. - 🔴【Wide Application】This 4 post busbar is an excellent circuit collection wire Harness in the car, truck,RV, yacht, caravan, and ship power system etc. Bus Bar Junction Block makes the wiring of circuit become neat and tidy and prevent electric short circuit，Bring order to your power distribution systems. - 🔴【Easy to Install】 Black car power distributor is connected to the negative pole, red is connected to the positive pole,you just need to use the screws to fix the battery terminal distribution block in their respective positions, then use wiring on the screw, tighten the nut to fix, easy to operate without complicated installation steps. - 🔴【Quality Assurance】Package includes：1 x Red Positive Bus Bar,1 x Black Ground Bus Bar,4 x Mounting Screws,1 x 300A ANL fuse，If you have any questions, please feel free to contact us. As a reliable seller, you can buy our products with confidence, hoping to bring you a perfect shopping experience. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CJJJ6MKS | | Best Sellers Rank | 68,460 in DIY & Tools ( See Top 100 in DIY & Tools ) 93 in Terminal Blocks (DIY & Tools) | | Brand | AULESSE | | Colour | 300A Bus Bar 5/16" (M8) | | Connector Type | Screw | | Connector type | Screw | | Country Of Origin | China | | Current Rating | 300 Amps | | Current rating | 300 Amps | | Customer Reviews | 4.5 out of 5 stars 81 Reviews | | Item Dimensions W x H | 9W x 6H centimetres | | Item pitch | 1.25 Millimetres | | Manufacturer | ysamzeu1694 | | Manufacturer Part Number | sku6228-ys | | Material | Nylon , Stainless Steel | | Model Number | sku6228-ys | | Mounting Type | Screw Mount | | Mounting type | Screw Mount | | Number Of Contacts | 4 | | Number Of Poles | 4 | | Number of Positions | 4 | | Number of contacts | 4 | | Pitch | 1.25 Millimetres | | Voltage | 12 Volts (DC) | ## Product Details - **Current rating:** 300 Amps - **Item pitch:** 1.25 Millimetres - **Connector type:** Screw - **Number of contacts:** 4 - **Mounting type:** Screw Mount - **Material:** Nylon, Stainless Steel - **Colour:** 300A Bus Bar 5/16" (M8) - **Brand:** AULESSE - **Voltage:** 12 Volts (DC) - **Number of poles:** 4 ## Images ![12V-48V Bus Bar Power Distribution Block 300 Amp Bus Bar Copper Made with 4 x M8 Terminal Block Studs,Heavy-Duty Module Busbar Junction Block with Fuse for Cars RVs Ships Yachts -2PCS - Image 1](https://m.media-amazon.com/images/I/71wwQCrVAFL.jpg) ![12V-48V Bus Bar Power Distribution Block 300 Amp Bus Bar Copper Made with 4 x M8 Terminal Block Studs,Heavy-Duty Module Busbar Junction Block with Fuse for Cars RVs Ships Yachts -2PCS - Image 2](https://m.media-amazon.com/images/I/61WmB3hUK5L.jpg) ![12V-48V Bus Bar Power Distribution Block 300 Amp Bus Bar Copper Made with 4 x M8 Terminal Block Studs,Heavy-Duty Module Busbar Junction Block with Fuse for Cars RVs Ships Yachts -2PCS - Image 3](https://m.media-amazon.com/images/I/71KZlauDhaL.jpg) ![12V-48V Bus Bar Power Distribution Block 300 Amp Bus Bar Copper Made with 4 x M8 Terminal Block Studs,Heavy-Duty Module Busbar Junction Block with Fuse for Cars RVs Ships Yachts -2PCS - Image 4](https://m.media-amazon.com/images/I/71CSeYa2QXL.jpg) ![12V-48V Bus Bar Power Distribution Block 300 Amp Bus Bar Copper Made with 4 x M8 Terminal Block Studs,Heavy-Duty Module Busbar Junction Block with Fuse for Cars RVs Ships Yachts -2PCS - Image 5](https://m.media-amazon.com/images/I/61NiCapiuwL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Novel 'Cube' design for a very decent high current Bus-bar *by B***A on 11 November 2025* Cube Design Bus Block/Bar These are a quite exciting /novel design that improves on the classic 'long bar' design in a couple of ways. It's easy to have cables arriving from all 4 directions, up to 2 per side . The Reds and Blacks clip together side by side if required (though now only 3 directions available on each). There are removable shutters for all sides and fixing screws are supplied that would also work for fixing through a mounting panel up to 8 or 9mm thick. Failing that appropriately longer standard M5 screws of the same design fit The big difference / main feature for me is that the main conductor bar is square meaning relatively short current paths exist between any/all of the four 'M10 ring terminal' posts, which removes an issue commonly seen in long high current bus-bars when passing power end to end. Curiously all the units supplied were marked 600A on their cover labels and, in traditional 'long bars', such a high rating normally involves a heavy copper bar 100 - 200mm long, 22mm wide by about 12mm high! By contrast, the square bar-block in these Blocks is also described as copper and was measured at about 6mm high x 50mm x50mm . The square design will allow for a smaller and more effective conductor /link but (without full load testing) I prefer the sales page's description of 400A as guidance for my DC usage. I bought them as a compact connecting solution for a 300A battery inverter circuit and on previous experience I'm pretty confident it will work well there for that purpose. A very useful find ! Overall It feels high quality, adds some novel functionality / space/weight saving and the price seems very reasonable ### ⭐⭐⭐⭐⭐ Replacement *by S***N on 9 April 2026* Replacement for broken one. does the same job. ### ⭐⭐⭐⭐ Dc supply connector *by J***Y on 1 December 2025* Prodicr as described good quality ## Frequently Bought Together - AULESSE 12V-48V Bus Bar Power Distribution Block 300 Amp Bus Bar Copper Made with 4 x M8 Terminal Block Studs,Heavy-Duty Module Busbar Junction Block with Fuse for Cars RVs Ships Yachts -2PCS - Bolatus Battery Isolator Switch 12V 24V 48V Battery Switch 275A Battery Kill Switch 1-2-Both-OFF Battery Cut Off Switch for Car Truck Boat Yacht Caravan Motorcycle - AUTOWIRING Automotive Hi-Flex 170 Amp 25mm² 4 AWG Battery/Starter/Inverter/Welding PVC Cable Wire (Black, 2 Metre) --- ## 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.sn/products/580618692-12v-48v-bus-bar-power-distribution-block-300-amp-bus](https://www.desertcart.sn/products/580618692-12v-48v-bus-bar-power-distribution-block-300-amp-bus) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-06-01*