Wengart 12V Fuse Relay Block WG31A, 40A 1-Way Relay Output and 2-Slot ATC/ATO Fuse Holder, Universal Automotive Relay Box for Car, Truck, Camper, Marine Boat and DIY Electrical Circuit Upgrades, Black

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Management number 237526031 Release Date 2026/07/10 List Price US$4.00 Model Number 237526031
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Streamline Your 12V Projects with the Wengart Professional Relay BoxIn the world of DIY automotive electrical work, safety and organization are paramount. The Wengart WG31A 12V Fuse Relay Block is a compact, heavy-duty solution for those who need a dedicated circuit without the bulk of a full-size fuse panel. By combining a 40A high-capacity relay with dual ATC/ATO fuse slots, you gain an all-in-one protection hub that is as rugged as your vehicle.Why This Is the Choice for DIY Enthusiasts:High-Amperage Capacity: The 40A relay is built to handle the heavy surge currents of cooling fans and powerful light bars.Vibration-Proof Mounting: Designed for the bumps and jolts of off-road driving and marine environments.Clean Aesthetic: Provides an OEM-quality finish to your secondary wiring, increasing the resale value and reliability of your vehicle.Direct Solutions to Common Concerns - FAQ:Q: Can I use this for my auxiliary LED lights? A: Absolutely. This relay box is perfect for managing the power of high-wattage LED pods or light bars. One fuse can protect the relay coil circuit, while the other protects the main power load. Q: Is it difficult to mount in a tight engine bay? A: No. We designed this unit with a Space-Saving Profile. It fits into small gaps where larger relay blocks cannot, making it ideal for modern vehicles with limited under-hood clearance. Q: What type of fuses does it accept? A: It is compatible with standard ATC/ATO blade fuses. This ensures that replacements are easy to find at any local auto parts store during your road trips. Technical Specifications:Model: WG31ARelay Rating: 12V DC, 40A (4-Pin)Fuse Slots: 2x ATC/ATO Blade Fuse HoldersHousing Material: Heat-Resistant Flame-Retardant PolymerPackage Includes: 1x Relay Box with Cover, 1x 40A Relay, Terminals

  • Professional Circuit Protection: Simplify your electrical upgrades with this integrated 12V relay box. Featuring a pre-installed 40A 4-pin relay and two ATC/ATO fuse slots, it provides robust protection against overloads and short circuits. It is the ideal standalone power management solution for protecting expensive auxiliary lights or cooling fans.
  • Neat Installation And Organization: Stop dealing with a "spaghetti" mess of wires under your hood. This compact fuse relay block organizes your wiring into one secure hub, ensuring a clean and professional look. The pre-wired terminals and clear layout significantly reduce installation time for DIY enthusiasts and professional mechanics alike.
  • Versatile For 12v Systems: Designed for universal compatibility, this heavy-duty relay box works seamlessly with a wide range of DC 12V vehicles. Whether you are adding a fuel pump to a classic car, installing LED pods on an off-road vehicle, or managing a bilge pump on a marine boat, the WG31A delivers reliable power.
  • Industrial Grade Durability: Crafted from high-impact, flame-retardant thermoplastic, the housing is built to withstand extreme engine bay temperatures and harsh vibrations. The snug-fitting cover provides essential protection against dust, splashes, and debris, ensuring your relays and fuses stay dry and functional in off-road environments.
  • Space Saving Compact Design: Unlike bulky multi-way relay boxes, this 1-way relay and 2-slot fuse holder is specifically engineered for tight spaces. Its small footprint allows for flexible mounting in cramped engine compartments or RV utility cabinets, making it the perfect upgrade for focused, single-device electrical projects.
ASIN B0G3PFNCHJ
Model 3Way1Realy
Brand Name WENGART
Unit Count 1.0 Count
Part Number WG66A
Coil Voltage 12 Volts (DC)
Contact Type Normally Open
Manufacturer WENJIA ELECTRIC CO.,LTD
Mounting Type Surface Mount
Connector Type Crimp
Current Rating 40 Amps
Operation Mode Automatic
Contact Material Silver
Specification Met CE
Included Components fuse relay box
Warranty Description Quality warranty period of 24 months
Contact Current Rating 40 Amps
Minimum Switching Voltage 12 Volts (DC)

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