12V 3Way Pre-Wired Fuse Relay Box Kit for truck RV LS swaps lights cooling fans for Sale

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12V 3Way Pre-Wired Fuse Relay Box Kit for truck RV LS swaps lights cooling fans For Sale

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12V 3Way Pre-Wired Fuse Relay Box Kit for truck RV LS swaps lights cooling fans:
$24.99

12V 3 Way Waterproof Relay Box Pre-Wired Fuse and Relay BoxProduct OverviewThis 12V 3-way pre-wired relay box kit is a complete electrical solution for vehicles, combining relays and fuses to provide safe, organized power distribution. Ideal for upgrading electrical systems, it is widely used in cars, trucks, boats, Jeeps, UTVs, ATVs, RVs and more.Key Features1. Complete Pre-Wired KitThe package includes:

3 × 4-Pin 40A JD1912 Relays
3 × ATC/ATO Blade Fuses (10A, 15A, 20A included, replaceable as needed)
Pre-colored wires for easy identification and connection
Heavy-duty 4mm² (11AWG) input wires for higher current handling capability

2. Durable & Weatherproof ConstructionMade of high-strength nylon, the box is built for long-lasting use. With IP64 waterproof rating and rubber coil seals, it effectively blocks water, dust and moisture to protect internal components.
Note: Do not fully submerge the box in water.3. Stable & Adjustable MountingComes with a Z-shaped stainless steel mounting bracket, which offers high strength, corrosion resistance and flexible installation angles. It can adapt to various terrain and vehicle layouts for secure mounting.4. Dual Overcurrent ProtectionEquipped with 3 ATC/ATO fuse holders connected in series with the relays. By selecting the appropriate fuse for your circuit current, you get double protection: the fuse will blow first in case of overcurrent, preventing damage to your connected devices.5. Universal Vehicle CompatibilitySuitable for most 12V vehicles, including:

4x4s, Jeeps, SUVs, UTVs, ATVs
RVs, pickup trucks, trailers, campers
Marine boats and other off-road vehicles

It provides a reliable and safe solution for managing electrical loads in a wide range of applications.Specifications

Working Voltage: 12V DC
Relay Type: 4-Pin Normally Open JD1912
Relay Rating: 40A
Fuse Type: ATC/ATO Blade Fuse (10A/15A/20A included)
Wire Gauge: 4mm² (11AWG) Input
Material: Nylon Housing + Stainless Steel Bracket
Waterproof Rating: IP64
Mounting Type: Screw Mount
Pre-Wired: Yes, color-coded wires for easy installation

Package Includes

1 × Pre-Wired 3 Way Fuse Relay Box
3 × 4-Pin 40A Relays
3 × ATC/ATO Blade Fuses (10A/15A/20A)
1 × Stainless Steel Mounting Bracket
Mounting Screws

Installation Tips

Connect the red power wire directly to the vehicle battery positive terminal.
Use the colored wires to connect each relay output to your accessories.
Ensure the box is mounted in a well-ventilated area away from direct water spray.
Replace fuses with the correct rating if they blow, never use a higher amperage fuse than required.

On Jul 9, 2026 at 23:55:41 PDT, seller added the following information: