Boat-Shaped 12 Way 4-Relay Waterproof Pre-Wired Fuse Box
Product Overview
The Boat-Shaped 12 Way 4-Relay Waterproof Pre-Wired Fuse Box is a high-capacity automotive power distribution and circuit protection solution designed for vehicles and equipment with multiple auxiliary DC electrical accessories.
It integrates 12 ATC/ATO blade fuse positions and 4 automotive relay positions into one waterproof protective enclosure, providing centralized fuse protection and relay-controlled switching in a compact and organized layout.
The distinctive boat-shaped housing provides a streamlined appearance while helping protect internal electrical components from water, dust, dirt, and debris.
The pre-wired harness reduces terminal crimping, relay socket assembly, and repetitive manual wiring, helping installers save installation time and create a cleaner electrical system.
Four circuits can be configured with relay-controlled switching, while the remaining fuse positions can be used for additional fuse-protected power circuits according to the customer's wiring design.
Relay configurations are available for 12V and 24V systems, with relay current ratings from approximately 30A to 60A, depending on relay model, wiring specification, electrical load, and project requirements.
The terminal and wiring system can support wire sizes up to approximately 12 AWG, depending on terminal selection and final circuit configuration.
FUZTRAX can supply the product as a complete pre-wired assembly or provide housing, terminals, relays, fuses, and related components separately according to customer requirements.
Key Features
12 Fuse Positions + 4 Relay Positions
The integrated design combines twelve ATC/ATO blade fuse positions and four automotive relay positions in one enclosure.
The twelve fuse positions provide circuit protection for multiple auxiliary electrical accessories, while four relay positions allow selected loads to be independently switched through relays.
This configuration is ideal for electrical systems that require many protected circuits but only several relay-controlled outputs.
Distinctive Boat-Shaped Housing
The enclosure features a streamlined boat-shaped exterior that provides a distinctive appearance compared with conventional rectangular fuse relay boxes.
The shaped housing is suitable for aftermarket brands, vehicle builders, wiring harness manufacturers, and OEM customers seeking a more recognizable product design.
The internal layout keeps fuses, relays, terminals, and wiring organized within one compact protective enclosure.
Waterproof Protective Enclosure
The housing is designed to provide enhanced protection against water, dust, dirt, mud, and other contaminants commonly encountered in automotive and outdoor environments.
This makes the product suitable for installations where additional environmental protection is required.
Typical applications include:
For applications requiring a specific certified IP protection rating, please confirm the required standard and product configuration before ordering.
Pre-Wired for Faster Installation
The pre-installed wiring harness helps reduce repetitive terminal crimping, relay socket wiring, and manual assembly work.
Color-coded wiring can make circuit identification easier and help reduce installation errors.
For OEM and ODM projects, wiring specifications can be customized according to customer requirements, including:
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Wire gauge
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Wire length
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Wire color
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Terminal configuration
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Relay wiring layout
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Fuse configuration
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Power input arrangement
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Circuit layout
Supports Up to 12 AWG Wire
The product can support wire sizes up to approximately 12 AWG, depending on terminal selection, circuit design, and final electrical configuration.
This provides greater flexibility for higher-current auxiliary circuits when the wire, fuse, relay, terminals, and connectors are properly matched to the electrical load.
Actual allowable circuit current should always be determined according to the complete electrical system rather than wire size alone.
4 Independent Relay-Controlled Circuits
Four relay positions provide independent switching control for selected electrical accessories.
Typical relay-controlled applications include:
The relay-controlled circuits can be configured according to the customer's actual electrical requirements.
Additional Fuse-Protected Circuits
Because the product includes twelve fuse positions and four relay positions, the remaining fuse positions can be used for circuits that require fuse protection without relay switching.
These circuits may be used for:
This provides greater flexibility when designing a complete vehicle or equipment electrical system.
12V / 24V Relay Options
Relay configurations are available for common automotive and equipment electrical systems.
Available voltage options include:
Available relay current ratings may include:
Relay models and contact configurations can be selected according to customer requirements.
Final relay selection should be based on:
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System voltage
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Continuous operating current
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Starting or inrush current
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Wire gauge
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Fuse rating
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Terminal capacity
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Connector capacity
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Installation environment
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Electrical load characteristics
ATC / ATO Blade Fuse Compatible
The fuse block is compatible with commonly used ATC/ATO automotive blade fuses.
Different fuse ratings can be selected independently for each circuit according to the actual operating current of the connected equipment.
The standardized blade fuse format makes fuse inspection, replacement, and maintenance convenient for automotive aftermarket and custom wiring applications.
Centralized Power Distribution
Instead of installing multiple standalone fuse holders, separate relays, and scattered wiring throughout the vehicle, this fuse relay box centralizes major protection and switching components in one enclosure.
The 12-fuse and 4-relay arrangement is especially useful for projects where many circuits require fuse protection but only selected accessories require relay control.
The centralized layout helps simplify circuit management and create a cleaner electrical installation.
Multiple Supply Options
FUZTRAX can supply this product in different configurations according to customer requirements.
Complete Pre-Wired Assembly
Includes housing, terminals, relays, fuses, and pre-installed wiring.
Suitable for customers who require a ready-to-install electrical assembly.
Unwired Fuse Relay Box
The product can also be supplied without pre-installed wiring.
This option is suitable for:
Customers can create their own wiring configuration according to specific project requirements.
Housing + Terminal Kit
The boat-shaped waterproof housing and terminals can be supplied separately for customers who prefer local assembly or independent wiring production.
Relay Supply
12V and 24V automotive relays can be supplied according to customer requirements.
Available relay current ratings may range from approximately 30A to 60A depending on the selected relay model.
Individual Components
Housing, terminals, relays, fuses, and other related electrical components can also be ordered separately according to customer requirements.
Applications
The Boat-Shaped 12 Way 4-Relay Waterproof Pre-Wired Fuse Box is suitable for a wide range of automotive and auxiliary electrical applications, including:
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Off-road vehicles
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Pickup trucks
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SUVs
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RVs
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Utility vehicles
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Special-purpose vehicles
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Custom vehicles
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LED lighting systems
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Fog lights
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Driving lights
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Work lights
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Auxiliary lighting
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Air horns
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Cooling fans
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Fuel pumps
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Auxiliary pumps
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Compressors
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Control modules
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Auxiliary power circuits
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Outdoor electrical equipment
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Automotive aftermarket wiring
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OEM wiring harness assemblies
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Custom power distribution systems
Product Specifications
Product Name:
Boat-Shaped 12 Way 4-Relay Waterproof Pre-Wired Fuse Box
Fuse Positions:
12
Relay Positions:
4
Fuse Type:
ATC / ATO Blade Fuse
Wiring Type:
Pre-Wired or Unwired
Housing Style:
Boat-Shaped / Streamlined Design
Relay Voltage Options:
12V / 24V
Relay Current Options:
Approximately 30A–60A
Maximum Supported Wire Size:
Up to approximately 12 AWG
Relay Model:
Customizable
Housing Protection:
Waterproof protective enclosure
Fuse Rating:
Customizable according to circuit requirements
Wire Gauge:
Customizable up to approximately 12 AWG
Wire Length:
Customizable
Wire Color:
Customizable
Terminal Configuration:
Customizable
Connector Type:
Customizable
Wiring Configuration:
Customizable
Supply Options:
Complete pre-wired assembly / Unwired box / Housing + terminals / Relays / Fuses / Individual components
Why Choose the Boat-Shaped 12 Way 4-Relay Configuration?
The Boat-Shaped 12 Way 4-Relay configuration is designed for electrical systems that require a large number of protected circuits but only several relay-controlled outputs.
The twelve fuse positions provide broad circuit protection capacity, while four relay positions can be assigned to higher-current or independently switched accessories.
The remaining fuse positions can be used for direct protected power circuits, low-current accessories, control modules, monitoring equipment, or other electrical loads according to the customer's wiring design.
The waterproof boat-shaped enclosure provides additional environmental protection while giving the product a distinctive appearance compared with traditional rectangular fuse relay boxes.
Support for wire sizes up to approximately 12 AWG also provides greater flexibility for higher-current auxiliary circuits when properly configured.
This product is particularly suitable for:
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Off-road vehicle upgrades
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Pickup truck electrical systems
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SUV modifications
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RV electrical projects
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Utility vehicles
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Special-purpose vehicles
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Custom vehicle builds
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OEM wiring harness assemblies
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Branded aftermarket electrical products
OEM & ODM Customization
FUZTRAX provides OEM and ODM manufacturing services for automotive fuse boxes, relay boxes, wiring harnesses, terminals, and related electrical assemblies.
Customization options include:
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Relay voltage
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Relay current rating
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Relay model
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Relay contact configuration
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Wire gauge up to approximately 12 AWG
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Wire length
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Wire color
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Fuse rating
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Fuse configuration
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Terminal type
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Connector type
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Wiring layout
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Circuit configuration
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Power input arrangement
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Housing configuration
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Product labeling
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Customer logo
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Packaging
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Complete or semi-finished assembly
Customers can order a complete pre-wired product or purchase the boat-shaped waterproof housing, terminals, relays, fuses, and related components separately according to their own manufacturing and assembly requirements.
Important Electrical Notice
The current rating printed on a relay represents the relay contact specification and does not automatically represent the safe continuous current capacity of the complete fuse relay box or wiring harness.
The use of 12 AWG wire does not automatically mean that every circuit can safely carry the same current under all operating conditions.
Actual allowable circuit current depends on multiple factors, including:
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Wire cross-sectional area
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Wire length
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Fuse rating
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Relay contact rating
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Terminal capacity
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Connector capacity
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Continuous operating current
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Starting or inrush current
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Ambient temperature
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Installation method
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Electrical load characteristics
Always select the correct relay, fuse, wire gauge, terminals, and connectors according to the actual electrical requirements of the connected equipment.
For high-current, motor-driven, or specialized electrical applications, confirm the complete electrical specifications before ordering.
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