--- product_id: 473975252 title: "12V Relay Fuse Box Prewired Relay Box 12v Automotive with 5pcs 5pin relays 1pcs 4pin Relay 6 ATC/ATO Blade Fuse, Universal Waterproof Fuse Relay Box for Automotive Car Truck Marine Boat" brand: "yuxivcne" price: "¥2987" currency: JPY in_stock: false url: https://www.desertcart.jp/products/473975252-12v-relay-fuse-box-prewired-relay-box-12v-automotive-5pcs store_origin: JP region: Japan --- # 12V 40A high-capacity relays Waterproof & dustproof casing Pre-wired for plug-and-play install 12V Relay Fuse Box Prewired Relay Box 12v Automotive with 5pcs 5pin relays 1pcs 4pin Relay 6 ATC/ATO Blade Fuse, Universal Waterproof Fuse Relay Box for Automotive Car Truck Marine Boat **Brand:** yuxivcne **Price:** ¥2987 **Availability:** ❌ Out of Stock ## Summary > ⚡ Stay powered, stay protected — the relay box that works as hard as you do! ## Quick Answers - **What is this?** 12V Relay Fuse Box Prewired Relay Box 12v Automotive with 5pcs 5pin relays 1pcs 4pin Relay 6 ATC/ATO Blade Fuse, Universal Waterproof Fuse Relay Box for Automotive Car Truck Marine Boat by yuxivcne - **How much does it cost?** ¥2987 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/473975252-12v-relay-fuse-box-prewired-relay-box-12v-automotive-5pcs) ## Best For - yuxivcne enthusiasts ## Why This Product - Trusted yuxivcne brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Precision:** Pre-wired harness with clearly marked lines eliminates installation headaches—just connect and go. - • **Powerhouse Protection:** Equipped with six ATC/ATO blade fuses (5A-30A) and six 40A relays for ultimate circuit control. - • **Engineered for Every Ride:** Special mounting legs designed to fit snugly in tight engine compartments, trunks, or marine setups. - • **Built to Brave the Elements:** Durable thermoplastic shell with waterproof top and bottom covers keeps your system safe from water and dust intrusion. - • **Flame-Retardant Reliability:** High-temp resistant, flame-retardant materials ensure safety and longevity under demanding conditions. ## Overview This 12V automotive relay fuse box features five 5-pin and one 4-pin 40A relays, six ATC/ATO blade fuses ranging from 5A to 30A, and a waterproof, flame-retardant thermoplastic casing. Pre-wired for easy installation, it’s engineered for cars, trucks, marine, and motorsport applications, offering robust, reliable circuit protection in a compact, durable design. ## Description SPECIFICATION: Product Name: Modified 6-way Fuse and Relay Box Product Category: Fuse Box Way: 6 way Max Current: 12V Cover Material: Plastic Base Material: Thermoplastic Product Shape: Insert Type Fuse Type: ATC & ATO Fuse Relay Type: JD1914 Relay & RTT7121 Relay Number of Fuse Slots: 6 6 Pieces ATO/ATC Fuse: 5A,10A,15A,20A,25A,30A Applications:for Car Truck Marine, Automotive, Motorsport PACKAGE INCLUDES: 1 * Relay Holder Box with Pre-wiring 6 * ATO/ATC fuse (5A,10A,15A,20A,25A,30A) 5 * 5Pin 12V 40A relays 1 * 4 pin 12V 40A relays ## Features - High Capability Fuse and Relay Box: This Automotive relay fuse box is equipped with 5p 5-Pin JD1914 12V 40A Relays and 1p 4-Pin RTT7121 12V 40A Relay, 6 ATC/ATO blade fuses 5A, 10A, 15A, 20A, 25A, 30A - Safe & Waterproof Relay Box: This Relay fuse box case is made from high quality high-temperature resistant materials to ensure safety. A top cover and a bottom cover make it waterproof and dustproof. All pre-wires can get out from the cable opening hole, and shielded from water splashes and dust - High Performance: The automotive relay fuse box is made of high quality flame retardant shell, the overall structure is strong and reliable, with strong anti-tampering performance. Each slot has precision hollowing, with top and bottom cover, waterproof and dustproof - Perfect Pre-Wiring: This car relay fuse box has all the necessary wiring pre-wired, no need to install terminals and wiring harness later, directly connect to the vehicle and avoid the hassle of wiring. Corresponding line numbers are marked, which is very convenient for your installation - Special Mounting Legs: High and low legs designed to fit snugly in angular engine compartment or trunk areas, for flat surfaces, please add your own rubber pads to level the relay box. 12V relay box kit suitable for all vehicles, truck trailer campers marine, etc ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BCJGTWCD | | Brand | YUXIVCNE | | Customer Reviews | 4.2 4.2 out of 5 stars (102) | | Date First Available | August 31, 2022 | | Item Weight | 1.48 pounds | | Item model number | 12V Fuse Relay Box | | Manufacturer | YUXIVCNE | | Manufacturer Part Number | Fuse and Relay Box | | Package Dimensions | 8.62 x 5.2 x 3.74 inches | ## Images ![12V Relay Fuse Box Prewired Relay Box 12v Automotive with 5pcs 5pin relays 1pcs 4pin Relay 6 ATC/ATO Blade Fuse, Universal Waterproof Fuse Relay Box for Automotive Car Truck Marine Boat - Image 1](https://m.media-amazon.com/images/I/01RmK+J4pJL.jpg) ## Questions & Answers **Q: What guage in awg is the wiring for load side. also is it 100% copper or cca?** A: the wiring for load side is 13awg（about 2.5mm²）and it is 100% copper in the 12V Fuse and Relay Box Block with 6 Blade Fuses . **Q: where can i find the installation instructions ?** A: I'm sorry we've been neglecting installation instructions for the Fuse and Relay Box,the 12 Fuse and Relay Box is made well,Neat and tidy. You are not required to layout your electrical requirement or wire up the box..No more wiring nightmare! it is good for some people who didn't have some background knowledge in 12volt or know how to wire relays.It was time consuming to wire.if you didn't know how to do wiring and pinning and receptacles,then it would be a very wise choice to choose our fuse and relay box,all you will need to do is connect to the corresponding spot on the power bar and run you lead to the load.If you have electrical wiring experience, especially automotive, then this is a great relay and fuse box for the money and time,and now we have asked our engineers to show the  circuit installation of the Fuse and Relay Box. You can learn about the circuit and know how to install it through the pictures or videos **Q: Why are there 2 red wires, do both go to the battery?** A: I'm not totally sure why there are 2 red wires, but it looks like its for the top and bottom row of fuses. if you take the bottom of the panel off you 'll see how they're split up. I connected both to the battery along with a inline circuit breaker and haven't had any issues with it. powers a light bar, rear lights and some pillar lights without any hiccups. **Q: What is the difference in the two relays?** A: there is two types of relays in the Fuse and Relay Box with 6 Blade Fuses . you can get four 4-pin relays and one 5-pin relay if you own the 12V Fuse and Relay Box. The difference between a 4 and 5 pin relay is that a 4 pin relay is used to control a single circuit, whereas a 5 pin relay switches power between two circuits ,and we have five blade fuses in the 12V Fuse and Relay Box ,they are fastened to the fuse box, you don't have to waste time and effort to install it.of course Each fuse corresponds to one relay ## Frequently Bought Together - 12V Relay Fuse Box Prewired Relay Box 12v Automotive with 5pcs 5pin relays 1pcs 4pin Relay 6 ATC/ATO Blade Fuse, Universal Waterproof Fuse Relay Box for Automotive Car Truck Marine Boat - APIELE 16mm Latching Push Button Switch 12V DC On Off Black Shell with LED Angel Eye Head for 0.63" Mounting Hole with Wire Socket Plug Self-Locking (Blue/Black Shell) --- ## 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.jp/products/473975252-12v-relay-fuse-box-prewired-relay-box-12v-automotive-5pcs](https://www.desertcart.jp/products/473975252-12v-relay-fuse-box-prewired-relay-box-12v-automotive-5pcs) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-26*