RB-R4F12-W1 8 Way Waterproof Fuse and Relay Box with Pre-wired
RB-R4F12-W1 Waterproof Fuse and Relay Box Dimension
RB-R4F12-W1 Multiple Protection Waterproof Fuse and Relay Box
RB-R4F12-W1 Fuse and Relay Box with Pre-wired
RB-R4F12-W1 8 Way Waterproof Fuse and Relay Box Wiring Diagram
RB-R4F12-W1 8 Way Fuse and Relay Box Installation Design

Universal 8 Way Waterproof Fuse and Relay Box with Pre-wired

Regular price$25.99
Shipping calculated at checkout.


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  • Descriptions
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  • Reviews


About this item

【Ample Relay Capacity】- Designed with a 4-slot relay panel configuration, this relay and fuse box provides robust support for up to four 5-pin Bosch-style relays, ensuring efficient and organized relay management.

【Comprehensive Fuse Solution】- Featuring a 12-slot fuse holder design for ATC/ATO fuses, this fuse relay box offers a comprehensive solution for fuse storage, enhancing safety and reliability during operation.

【Inclusive Terminals】- Included with the 12V relay box are terminals tailored for both relays and fuses. This thoughtful inclusion streamlines the installation process, allowing for immediate and hassle-free use of the fuse and relay box.

【Enhanced Protection】- Equipped with both a top and bottom cover, this 12V fuse and relay box ensures comprehensive protection. The inclusion of these covers transforms the relay fuse box into a waterproof enclosure, safeguarding your components against environmental factors.

【Versatile Application】- Suitable for a wide range of applications, from automotive to marine and beyond, this fuse and relay box offers versatile compatibility. Its well-designed structure and protective features make it an ideal choice for various electrical setups.


RB-R4F12-W1-4P - 1 x Fuse Relay Block with Top & Bottom Cover, 44 x Terminals (20 x Relay Terminals, 24 x Fuse Terminals), 4 x Bosch Style 4-Pin Relay, 12 x Blade Fuses (3 x 5A, 3 x 10A, 3 x 15A, 3 x 20A), and Pre-wired.


 Part NO RB-R4F12-W1-4P
Fuse Type ATC & ATO Fuse
Relay Type Bosch Relay
Number of Fuse Slots 12
Number of Relay Slots 4 x Bosch Style
Applications for Car Truck Marine, Automotive, Motorsport


Shipping & Returns

Free Shipping

We will use Economy International express service operated by China Postal Express. And it’s for light-weight products that less than 2kg with delivery in 10-25 days.

Expedited Shipping

You can choose this way, and normally we will use FEDEX or DHL. the shipping Rate is depend on the total weight of products, and delivery date will be 3-7 days.


Refund arrival time: 1-2 working days
Refund path: return to the original path
Refund contact information: angel@chinadaier.com


Customer Reviews

Based on 1 review
Bryan Henry
Solid Option

Overall, a simple and inexpensive way to add Aux circuits for audio, lighting, etc. I would have preferred some flexibility in how the relays were wired, especially given the inclusion of 5-pin relays.