Blue Sea 7443 UL-489 Circuit Breaker - 20A Flat Rocker

The 7443 UL-489 Circuit Breaker - 20A Flat Rocker is engineered to meet stringent UL-489 standards, making it an ideal choice for marine applications on Navy, Army, Coast Guard vessels, and other ships regulated under CFR 46. This reliable circuit breaker ensures optimal protection for your vessel's electrical systems, providing both safety and performance in demanding marine environments.

Key Features

• High Amperage Capacity: Handles up to 20A DC, ensuring robust performance for various electrical loads.
• Flat Rocker Actuator: Provides a sleek design and easy operation, suitable for tight marine control panels.
• Magnetic Hydraulic Trip-Free Mechanism: Guarantees quick and reliable shutdowns in the event of electrical faults, enhancing safety.
• Durable Construction: Made with tin-plated brass terminals (#10-32 Screw) for corrosion resistance and longevity in marine conditions.
• High Interrupt Capacity: Capable of interrupting up to 10,000A, offering superior protection against short circuits and overloads.
• Compact Design: Lightweight at just 0.25 lbs and compact box dimensions (2"H x 3"W x 5"L), making it easy to install in confined spaces on boats and vessels.

Technical Specifications

Parameter	Details
Amperage	20A DC
Actuator Style	Flat Rocker
Poles	1
Maximum Voltage	80V DC
Circuit Breaker Type	Magnetic Hydraulic - Trip Free
Terminal Type	#10-32 Screw Tin-Plated Brass
Interrupt Capacity	10,000A
Box Dimensions	2" H x 3" W x 5" L
Weight	0.25 lbs
UPC	632085074432

Why Choose the 7443 UL-489 Circuit Breaker for Your Marine Vessel?

Marine environments demand electrical components that can withstand harsh conditions, including moisture, salt, and vibrations. The 7443 UL-489 Circuit Breaker is specifically designed to meet these challenges, offering reliable performance and safety for your vessel's electrical systems. Its compact and lightweight design allows for flexible installation, while the high interrupt capacity ensures your systems are protected from electrical faults.

Installation and Compatibility

Designed for ease of installation, the flat rocker actuator fits seamlessly into standard marine control panels. Ensure compatibility with your vessel's specifications by verifying the amperage and voltage requirements. The durable tin-plated brass terminals provide secure connections, reducing the risk of corrosion and maintaining consistent electrical performance.

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