Blue Sea 4321 Circuit Breaker Switch Panel 4 Position - Gray w/12V Socket Dual USB

The 4321 Circuit Breaker Switch Panel is an essential component for any marine electrical system, offering reliable power distribution and protection for your vessel's electrical circuits. Designed specifically for the harsh marine environment, this gray panel combines durability with functionality, ensuring safe and efficient power management on your boat.

Marine-Grade Design

Built to withstand the demanding conditions of marine applications, the 4321 Circuit Breaker Switch Panel features a robust polycarbonate/ABS construction that is UV-stabilized, flame retardant, and resistant to corrosion. This ensures long-lasting performance even in exposed mounting scenarios where exposure to moisture, salt, and sunlight is prevalent.

Key Features

• Illuminated 15A Circuit Breakers: Each breaker provides easy switching, clear “ON” indication, and reliable overcurrent protection to safeguard your electrical systems.
• Easy Retrofit Installation: Industry-standard sizes and mounting options allow for seamless integration into existing marine electrical setups without the need for extensive modifications.
• Waterproof Protection: Silicone breaker boots and gaskets effectively prevent water ingress, maintaining the integrity of your electrical connections even in wet conditions.
• Compact Low-Profile Design: The streamlined form factor ensures installation in confined spaces is hassle-free, making it ideal for boats with limited cabinetry or electrical compartments.
• Quick Wiring Connectors: Fast-on circuit breaker connectors facilitate swift and secure wiring, reducing installation time and potential errors.
• Secure Power Connections: A two-wire connection system using #10 ring terminals fastens securely to the bus bars, providing a stable power source for all connected panels.
• Customizable Circuit Labels: Includes a set of 15 square format circuit labels for easy identification. Additional standard or custom labels are available from Blue Sea Systems to match your specific marine setup.

Technical Specifications

Attribute	Details
Color	Gray
Positions	4
Nominal Voltage	12 VDC
Maximum Amperage	45A
Terminal Type	1/4" Male Quick Connect
Hardware	Stainless Steel #6 x 5/8" Mounting Screws
Ring Terminal Size	M5 (#10)
Voltage	12V DC
Waterproof Rating	Water-Resistant
Dimensions	3"H x 6"W x 10"L
Weight	0.7 lbs
UPC	632085043216

Installation and Compatibility

The 4321 Circuit Breaker Switch Panel is designed for straightforward installation in marine environments. Its low-profile design and standard mounting dimensions allow it to fit seamlessly into a variety of boat configurations. Whether integrating into a new build or retrofitting an existing vessel, this panel ensures compatibility with a wide range of marine electrical components.

Enhanced Safety and Reliability

Safety is paramount on the water, and this breaker panel is engineered to provide dependable protection against electrical faults. The illuminated breakers allow for easy monitoring of circuit status, while the overcurrent protection safeguards your vessel’s electrical systems from potential damage.

Customizability and Support

With a comprehensive set of replaceable circuit labels included, you can easily organize and identify different electrical circuits onboard. For more specific labeling needs, Blue Sea Systems offers additional standard and custom labels, ensuring your panel meets the unique requirements of your marine setup.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.