12 Relay Fuse Boxes of 2025
Best Choice1
WeaschWeasch 12V Automotive Fuse and Relay Box, with 12 AWG Pre-Wired, 10 Relays and 15 ATC/ATO Blade Fuses, 5Pin Relay Block and Kit, for Cars Truck Marine Boat Jeep
Main highlights- This relay fuse box adopts a pre-wired design, and the wires are connected in different colors, which is easy to distinguish and connect. The wire on the high-power side of the relay is 4mm², which is safer when used at high currents
- This relay box also includes 15 fuse slots for ATC/ATO fuses, which can select the fuse corresponding to the circuit current to protect the equipment from damage by excessive current, providing double protection for your circuit
- This fuse relay box is suitable for allmost types of vehicles, including 4x4s, Jeep SUVs, UTVs, ATVs, RVs, pickups, trailers, campers, boats, etc. It provides a versatile solution for managing electrical systems in a variety of vehicles, ensuring reliable performance and electrical safety
- This 12v relay box package includes 10pcs 5Pin 40A JD1914 Relays, 15pcs 5A, 10A, 15A, 20A, 25A, 30A ATC/ATO blade fuses
- This 12v relay box includes total 10 available slots for connecting, can make 10 relays connected neatly and tidily in one box, which also makes it easy to replace when one of the relays break down
9.6Exceptional
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Value for Money2
ONLINE LED STORE16% OffTrue Mods 12V Auto Waterproof Fuse 5-Pin Relay Box Block Kit w/ 12AWG + 16AWG Pre-Wired Harness [Bosch Style Relays & Fuses] Universal Relay Panel for DC Automotive Vehicles Cars Marine Boat Jeep UTV
Main highlights- REMAP YOUR WIRING - Organize, consolidate, and keep track of multiple independent circuits with six relay sockets and six fuse holders.
- NEXT LEVEL UPGRADE - With neatly color-coded labels on wires to ensure easy installation, our pre-wired harness features 6x independent inputs with robust 12 AWG power wires to unleash the full potential of the included relays.
- MULTI-TRERRAIN - Our unique "Z" shaped brackets make it possible to securely mount this waterproof relay box just about anywhere.
- COMBINE TO CONQUER - The road ahead just got a bit easier. This top-notch relay box kit includes 6 Bosch-style relays, 10 fuses, a 6-wire-to-1 terminal ring, wire connectors, terminals, and silicon seals - all for the ultimate level of convenience.
- BUILT LIKE A TANK - Made from durable and dependable nylon 66 and sporting an IP65 waterproof rating, our relay box doesn't understand the word "can't".
9.5Excellent
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3
WUPP30% OffWUPP 12V Fuse Block with Relay, Automotive 6 Circuits Fuse and Relay Box With ACC Interface, Universal Fuse Block and Relay Kit for Cars Trucks Marine Boat
Main highlights- Versatile Application: Our Automotive Relay Box is thoughtfully designed to accommodate a wide range of vehicles, including SUVs, UTVs, ATVs, RVs, Pickup Trucks, Trailers, Campers, Marine Boats, and more. For any inquiries or concerns, please don't hesitate to reach out to us; we're here to assist you.
- Uncompromising Quality and Safety: Our fuse block sets the standard for excellence, meticulously crafted from environmentally friendly PBT material. Designed with exceptional mechanical strength, insulation, and heat resistance, it minimizes the risk of fracture, deformation, combustion, or short circuit, guaranteeing superior safety and durability.
- Seamless Installation: With its integrated relay kit, this car fuse block eliminates complex wiring, making installation a breeze while ensuring a safer fuse relay experience. Overall, this innovative design is a game-changer, simplifying the process and enhancing overall safety.
- Intuitive LED Safety Indicators: Experience enhanced safety with our fuse block featuring LED indicators for each fuse strip. The blue light signals active power, while the red light promptly alerts you to a disconnected fuse, enabling quick action for safer travels. Easily identify connected or broken fuses with this intuitive design.
- Enhanced ACC Interface: Our innovative design incorporates a cutting-edge ACC interface, which automatically cuts off power upon turning off the car key, ensuring no power failures. This intelligent feature sets us apart from competitors, offering unmatched convenience and safety.
9.4Excellent
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4
DAIERTEKDaierTek 12V Relay Box 6 Way12 AWG Pre-Wired Waterproof Relay Box 6 Slot ATC/ATO Fuse Relay Block Universal Relay Panel for Automotive Car Marine Boat
Main highlights- 【Universal 12V Application】 - Designed for 12V systems, this 6 way relay fuse box is perfect for automotive, truck, marine, RV, and DIY projects, ideal for controlling lights, pumps, motors, or other accessories. Its modular design streamlines complex wiring for improved reliability.
- 【Splash & Dust Resistant】 - This relay box is sealed with a durable top cover and rubber gasket, blocking dust, splashing water, and light rain (not fully submersible). Ideal for harsh environments like engine bays, marine setups, or outdoor applications, it protects against corrosion and short circuits for reliable performance.
- 【Pre-Wired & Color-Coded】 - This factory-prewired fuse relay block features color-coded wires (e.g., red for power, black for ground, blue for signals) for intuitive connections. The high-power relay side is equipped with 12AWG heavy-duty wires, capable of safely handling up to 20A continuous current while reducing heat buildup.
- 【Integrated Fuse Block】 - Equipped with 6 fuse slots, the 12 AWG pre-wired relay box allows you to install compatible fuses for each circuit, providing dual protection against overcurrent. Fuses blow first to safeguard your devices from damage, ensuring electrical safety.
- 【6 Way Relay Box】 - This 12v relay box features 6 dedicated slots for neat and organized relay installation, keeping your wiring system tidy. Easily replace a faulty relay individually without disturbing the entire setup, minimizing maintenance hassle.
9.3Excellent
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5
RVBOATPATRVBOATPAT 12V Fuse Relay Box with 6 Relays and 11 Way ATC/ATO Blade Fuses, Pre-Wired Fuse and Relay Box 12 Vlot Relay Fuse Box Block for Automotive Marine Boat
Why we love it
Holds multiple relays and fuses neatly.
Pre-wired for easy installation.
Versatile for automotive and marine use.
9.0Excellent
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6
JoinfworldJoinfworld Relay Box Fuse Relay Box 12V Automotive Universal Fuse Panel with 6 Way Relays and 14 x ATC/ATO Blade Fuses 12 Volt Fuse Box Waterproof with Led Light and Relay Module
Main highlights- Wide Application: The 12v relay box can make your wiring more neat and more convenient, and it is suitable for all vehicles, 4X4 Offroad SUV UTV ATV RV Pickup Truck Trailer Camper Marine Boat, etc.
- Waterproof: Joinfworld 12v relay fuse box is made of high-quality nylon material flame retardant shell, and the cover designed with a buckle which makes it have a better waterproof effect
- LED indicator light: The relay box 12v is equipped with LED indicator light for each relay and blade fuse to allow you to know their working states, design with overvoltage protection and surge protection safety protection, to make your work more safe and reliable
- Ease of Installation: Our unique and upgraded fuse relay box comes with relay module, all the accessories are assembled on this relay panel, so you don't need to weld the wires. This design of our relay panel box also makes your installation more flexible and convenient
- Assembled Relay Box: The automotive 12V Relay Fuse Box has high capacity, this relay holder box package includes 2pcs 5pin 40A relays and 4pcs 4pin 40A relays, total 14pcs 10A, 15A, 20A, 25A, 30A, 40A blade fuses. They are all neatly installed in this box
8.7Very Good
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7
RVBOATPATRVBOATPAT 12 Volt Fuse Relay Box Pre-Wired Fuse and Relay Box with 4 Relays and 12 Way ATC/ATO Fuses Sealed 12V Relay Fuse Box Block for Auto Car Marine Boat
Why we love it
Quick and easy installation.
Suitable for multiple vehicle types.
Maintains tidy and organized circuits.
8.6Very Good
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8
GebildetGebildet 12V Fuse Relay Box with 6 Relays and 11 Way ATC/ATO Blade Fuses, Pre-Wired Fuse and Relay Box 12 Vlot Relay Fuse Box Block for Automotive Marine Boat
Main highlights- Various Size Fuses - This auto fuse block will also come with 11 pieces of ATC/ATO fuses, which includes 2 x 5A, 2 x 10A, 2 x 15A, 2 x 20A, 2 x 25A and 1 x 30A blade fuses and 10pcs spare fuse(2 x 10A, 2 x 15A, 2 x 20A, 2 x 25A and 2 x 30A fuse)
- Large Capacity - This fuse and relay box can max hold 6 relays and 11 fuses at the same time, large capacity design, make multiple relay in one box, keeps your circuit neat and tidy.
- Convenient Pre-wired - This fuse relay box is pre-wired design, which finishes half of connection work, and only leave necessary install processes for you, makes the connection of this relay fuse box become much more convenient and easier for you.
- Application - The waterproof fuse relay block aims to provide a reliable and safe environment for device using and keep the connection systems neat and tidy, suitable for auto, car, truck, marine boat, etc.
- 40A Relay - This relay box 12v automotive will be equipped with 6 pieces of 4 pin 40A relays, provide the highest capacitance to make its application wider and safer.
8.5Good
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9
NilightNilight 12V Fuse Relay Box 6 Relays ATC/ATO Blade Holder 4Pin 5Pin Bosch Style 40A Pre-Wired Waterproof Block Kit Universal for Automotive Car Truck Camper Boat, 2 Years Warranty
Main highlights- Utility Relay and Fuse Box: Nilight relay box is designed with 6 slots relay and 6 slots fuse for installing, Meet the basic circuit wiring requirements. Compared to a chaotic wiring environment, the box provides a tidy and waterproof environment, it is well organize, consolidate, and helps you tracking multiple independent circuits easily. Pre-wired circuit box makes it more convenient to use.
- Support Multiple Circuits: The box contains 6 relay slots and 6 fuse slots, which means you can hook up to 6 circuits on the relay box. The relays are 40Amp which includes 5pcs 5PIN relay, and 1PCS 4 PIN relay. The fuse slots on the side includes 6 ATC/ATO blade fuses, they are 5A, 10A, 15A, 20A, 25A, 30A. You can use it on most 12V vehicles.
- Package Includes:1 x Pre-wired Fuse Relay Block with Top and Bottom Cover, 5 x 5Pin Relays, 1 x 4Pin relay, 6 x Blade Fuses, 2x mounting screws and nuts, User manual.
- High Performance: The box is an insulating case with strong tamper-proof performance, with a top and bottom cover for waterproof and dustproof, it has a cable opening hole that is the outlet for all wires, which can be well connected together and better shielded from water splashes, dust, and debris.
- Easy Installation: The brackets on both sides of the box allow it to be mounted on any wall inside the cars. This fuse relay box is suitable for installing on any vehicles such as cars, trucks, trailer, campers, marine boats, ATVs, UTVs etc. Make it possible to securely mount this waterproof relay box just about anywhere.
8.3Good
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10
BRIGHTFUN20% OffBRIGHTFUN 12V Relay Box 11 Way 12 AWG Pre-Wired Waterproof Relay Box 6 Slot and 12 ATC/ATO Fuses Relay Panel 4-Pin Box Block Kit for Automotive Car Marine Boat
Main highlights- Safe and Durable:This 12v automotive relay box will be equipped with 6 x 4-pin 40A relays that offer the highest capacitance, metal pins for good durability and corrosion resistance. The internal wiring is made of high quality copper core with low resistance and high conductivity efficiency, making it easy for you to use and safer!
- Large Capacity Design:Fuse and Relay Box holds up to 6 relays and 11 fuses at a time, all wiring harnesses are installed and ready to use, large capacity design keeps circuits tidy with multiple relays in one place, slots for fuses and relays make installation and troubleshooting a breeze!
- High Performance:The upper and lower covers are sealed and wrapped tightly, effectively preventing liquids or splashes from entering the 12v relay box, providing a reliable and safe environment for the use of the equipment and keeping the connecting system neat and clean, suitable for automobiles, cars, trucks, ships and so on.
- Easy To Use:This automotive fuse relay box also comes with 11 ATC/ATO fuses including 2 x 5A, 2 x 10A, 2 x 15A, 2 x 20A, 2 x 25A, and 1 x 30A blade fuses with an additional 5 replaceable fuses as well as an extra removal tweezers and , for easy replacement and access to your fuses.
- Easy To Install:This fuse relay box features a pre-wired design that completes half of the wiring, leaving you with only the necessary installation process, making wiring this relay fuse box easy and simple to connect all relays together for a clean and tidy installation.
8.0Good
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