---
product_id: 526201561
title: "RVBOATPAT 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"
brand: "rvboatpat"
price: "€ 58.17"
currency: EUR
in_stock: true
reviews_count: 13
category: "Rvboatpat"
url: https://www.desertcart.hr/products/526201561-rvboatpat-12-volt-fuse-relay-box-pre-wired-fuse-relay
store_origin: HR
region: Croatia
---

# 4x 40A high-capacity relays Waterproof sealed design 12 pre-wired ATC/ATO fuse slots RVBOATPAT 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

**Brand:** rvboatpat
**Price:** € 58.17
**Availability:** ✅ In Stock

## Summary

> ⚡ Master your ride’s power with seamless control and unmatched reliability!

## Quick Answers

- **What is this?** RVBOATPAT 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 by rvboatpat
- **How much does it cost?** € 58.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/526201561-rvboatpat-12-volt-fuse-relay-box-pre-wired-fuse-relay)

## Best For

- rvboatpat enthusiasts

## Why This Product

- Trusted rvboatpat brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Safe:** Waterproof sealed casing ensures reliable, clean, and safe electrical connections.
- • **Powerhouse Capacity:** Holds 4 relays and 12 fuses simultaneously for ultimate circuit control.
- • **Plug & Play Efficiency:** Pre-wired setup slashes installation time—get your system live faster.
- • **Universal Compatibility:** Perfect for cars, trucks, boats, and marine applications—one box fits all.
- • **Versatile Fuse Selection:** Includes 3x10A, 3x20A, 3x25A, and 3x30A fuses to cover all your power needs.

## Overview

The RVBOATPAT 12 Volt Fuse Relay Box is a pre-wired, sealed electrical hub designed for automotive and marine use. Featuring 4 high-capacity 40A relays and 12 ATC/ATO fuse slots with a variety of fuse ratings, it offers a neat, waterproof solution that simplifies installation and enhances circuit safety across multiple vehicle types.

## Description

Product description Fuse Relay Box Kit Specification Relay Type: 40A Relay Fuse Type: ATC & ATO Fuse Way: 4 Way Voltage: 12V/24V Cover Material：Plastic Base Material: Flame Retardant Nylon Material Product Shape: Insert Type Package Includes 1 x Pre-wiring Relay Holder Box 4 x 4Pin 40A Relay 3 x 10A Blade Fuse 3 x 20A Blade Fuse 3 x 25A Blade Fuse 3 x 30A Blade Fuse Fuse Relay Block The box is 4 relay slots and 12 fuse slots design, max hold 4 style relays and 12 balde fuses, will provide more protection for your circuit. 4 Pin Relay The relay fuse box will come with 6 pieces of relays for use, which is 4 pin design, makes the wiring and installation much easier and more convenient. ATC/ATO Blade Fuse The fuse relay box will also come with 11 pieces of fuses, which includes 2 x 5A, 2 x 10A, 2 x 15A, 2 x 20A, 2 x 25A and 1 x 30A, convenient for you to use immediately. Top Cover The top cover will helps to make the 12v relay box waterproof and dustproof, prevent dust and water from entering, which effectively enhances the security and life cycle of use. Pre-wired This fuse box with a relay adopts a pre- wired design, completing half of the connection work and installing it clean and tidy, making your connection easier. Label Colored label wires provide instructions for other wires for easy load/accessory wiring.

Review: Very easy to hook up and replace older fuse block - It’s a great product it fit my needs perfect …..
Review: Solid Pre-Built Fuse/Relay Box - For the price, this is a solid box! Having the 4 relays and extra fused power slots is a bonus. Another reviewer already mentioned how it's wired so I won't go into that part, but 2x red wires are main power, black is the daisy-chained ground, white is your trigger wires, yellow goes to your relayed devices, and the blues are just regular fused power. I used this in my 2002 VW Golf for a couple sets of fog lights, underhood lighting, and a lift pump. I wanted to clean up the battery terminals. As you can see in my images, I basically connected the 14 AWG power wires together, which gives this entire box around 40-50A rating. I'm protecting the entire box with a resettable, 40A breaker as a "just in case". From the breaker to the battery I just made an 8AWG jumper which can also handle 40A. The box mounts up nicely with some M6 screws. Couple things to note: Box is NOT waterproof. So place accordingly. As well, the included fuses are cheap. Probably won't last long but I'll run them until they go.

## Features

- Pre-wired: This fuse relay box is pre-wired design, completing half of the connection work, makes the entire connection process faster and time-saving
- Capacity: This fuse and relay box can max hold 4 relays and 12 fuses at the same time, making multiple relays in one box, keeps your circuit neat and tidy
- New Installation Design: The front mounting design can safely install the relay fuse box anywhere. The waterproof fuse relay block is designed to provide a reliable and safe environment for the use of equipment and keep the connection system clean. It is applicable to cars, trucks, ships, etc
- 40A Relay: This relay box 12v automotive will be equipped with 4 pieces of 4 pin 40A relays, provide the highest rating to make its application wider and safer
- Various Size Fuses: This auto fuse block will also come with 12 pieces of ATC/ATO fuses, which includes 3 x 10A, 3 x 20A, 3 x 25A, and 3 x 30A blade fuses, can meet a wide range of using requirements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BY7MGR78 |
| Best Sellers Rank | #109,152 in Automotive ( See Top 100 in Automotive ) #148 in Automotive Replacement Fuse Holders |
| Brand | RVBOATPAT |
| Brand Name | RVBOATPAT |
| Coil Voltage | 12 Volts |
| Connector Type | Through Hole" Or "Surface Mount |
| Contact Current Rating | 40 Amps |
| Contact Material | Silver Alloy |
| Contact Type | Normally Open |
| Current Rating | 40 Amps |
| Customer Reviews | 4.6 out of 5 stars 174 Reviews |
| Included Components | Pre-wired Relay Fuse Box with 12 Fuses and 4 Relays included |
| Item Type Name | Pre-wired 12 Way Fuse Block with Relay |
| Manufacturer | RVBOATPAT |
| Maximum Switching Current | 40 Amps |
| Minimum Switching Voltage | 12 Volts (DC) |
| Model | RB-R4F12-W1-4P |
| Mounting Type | Surface Mount |
| Operation Mode | Automatic |
| Part Number | RB-R4F12-W1-4P |
| Warranty Description | 1 Year Warranty |
| Wattage | 480 watts |

## Product Details

- **Connector Type:** Through Hole" Or "Surface Mount
- **Contact Material:** Silver Alloy
- **Contact Type:** Normally Open
- **Current Rating:** 40 Amps
- **Mounting Type:** Surface Mount

## Images

![RVBOATPAT 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 - Image 1](https://m.media-amazon.com/images/I/81pb05TLOmL.jpg)
![RVBOATPAT 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 - Image 2](https://m.media-amazon.com/images/I/61QfHfqBAqL.jpg)
![RVBOATPAT 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 - Image 3](https://m.media-amazon.com/images/I/715KlOK6kYL.jpg)
![RVBOATPAT 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 - Image 4](https://m.media-amazon.com/images/I/71-TqqY8P-L.jpg)
![RVBOATPAT 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 - Image 5](https://m.media-amazon.com/images/I/719RJTU-DZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very easy to hook up and replace older fuse block
*by B***L on March 3, 2026*

It’s a great product it fit my needs perfect …..

### ⭐⭐⭐⭐⭐ Solid Pre-Built Fuse/Relay Box
*by S***H on December 31, 2023*

For the price, this is a solid box! Having the 4 relays and extra fused power slots is a bonus. Another reviewer already mentioned how it's wired so I won't go into that part, but 2x red wires are main power, black is the daisy-chained ground, white is your trigger wires, yellow goes to your relayed devices, and the blues are just regular fused power. I used this in my 2002 VW Golf for a couple sets of fog lights, underhood lighting, and a lift pump. I wanted to clean up the battery terminals. As you can see in my images, I basically connected the 14 AWG power wires together, which gives this entire box around 40-50A rating. I'm protecting the entire box with a resettable, 40A breaker as a "just in case". From the breaker to the battery I just made an 8AWG jumper which can also handle 40A. The box mounts up nicely with some M6 screws. Couple things to note: Box is NOT waterproof. So place accordingly. As well, the included fuses are cheap. Probably won't last long but I'll run them until they go.

### ⭐⭐⭐⭐⭐ Quiet operation. very high quality
*by A***T on August 13, 2025*

So far, it works flawlessly. I like it. Easy to install. works well.

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**Shop now:** [https://www.desertcart.hr/products/526201561-rvboatpat-12-volt-fuse-relay-box-pre-wired-fuse-relay](https://www.desertcart.hr/products/526201561-rvboatpat-12-volt-fuse-relay-box-pre-wired-fuse-relay)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-24*