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Blue Sea Systems 7043 90A Thermal Circuit Breaker Panel Mount

Manufacturer

Blue Sea Systems

<p>When electrical reliability can mean the difference between a successful voyage and a dangerous situation, marine professionals and enthusiasts turn to Blue Sea Systems. Founded in 1992, this American manufacturer has built a reputation for creating electrical components specifically engineered to withstand the unforgiving marine environment. Every product reflects a commitment to safety standards and real-world performance that has made Blue Sea Systems a leading name in marine and specialty vehicle electrical systems.</p> <h3>Engineering for the Marine Environment</h3> <p>Blue Sea Systems develops and manufactures dependable AC and DC electrical products for marine and specialized vehicle applications, designed in the USA and engineered to excel in challenging environments. The marine environment presents unique challenges—salt spray, constant vibration, temperature extremes, and moisture exposure—that can quickly degrade inferior electrical components. Blue Sea Systems addresses these challenges through careful material selection, rigorous testing protocols, and designs that prioritize both safety and serviceability. Their components are engineered for marine use and align with the intent of ABYC E-11: AC and DC Electrical Systems on Boats and relevant USCG electrical regulations.</p> <h3>Commitment to Safety Standards</h3> <p>Safety standards aren't just guidelines for Blue Sea Systems—they're fundamental to every product design. All Blue Sea Systems marine battery disconnect switches comply with the ABYC C-7 certification, demonstrating their commitment to meeting and exceeding industry safety requirements. The company maintains ABYC-certified employees across multiple departments, from engineering to technical support, ensuring deep expertise in marine electrical system design and installation standards.</p> <h3>Comprehensive Product Range</h3> <p>Blue Sea Systems offers an extensive catalog designed to address every aspect of marine electrical systems. Their <a href="/7262-blue-sea-systems-circuit-breakers-200260">circuit breakers</a> provide resettable overcurrent protection with trip-free designs and clear trip indication for quick diagnostics. For power management, their <a href="/7262-blue-sea-systems-battery-switches-manual-200149">battery switches</a> offer reliable methods for controlling battery banks and disconnecting loads during storage or emergencies, with ABYC C-7 compliance guaranteed.</p> <p>Monitoring system health is critical aboard any vessel, which is why their <a href="/7262-blue-sea-systems-battery-monitors-volt-meters-200146">battery monitors and volt meters</a> provide accurate real-time data to help operators make informed decisions about power usage and charging. The company's <a href="/7262-blue-sea-systems-terminal-blocks-bus-bars-201059">terminal blocks and bus bars</a> create organized, serviceable connection points that simplify installation and future modifications. For keeping batteries properly charged, Blue Sea Systems offers <a href="/7262-blue-sea-systems-battery-chargers-200141">battery chargers</a> engineered with features like automatic charging relay compatibility and proper charge profile management.</p> <h3>Built by Boaters, for Boaters</h3> <p>Blue Sea Systems was founded based on a commitment to create innovative high quality marine electrical products to improve the safety, simplicity, and reliability of boating, with employees who are active boaters applying their passion to designing, developing, and building products. This firsthand experience translates into practical features like modular layouts, standardized footprints, and installer-centric designs that streamline panel work and serviceability. The result is a product line that addresses real challenges faced on the water, backed by comprehensive technical documentation and support resources that help both professionals and DIY enthusiasts complete installations with confidence.</p>

Part Number

7043
06/01/2036 11:52 AM
Sale Price

$95.33

In Stock (6)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Blue Sea Systems 7043 is a 90-amp thermal circuit breaker designed for marine DC electrical systems. This Type III switchable circuit breaker combines switching and circuit protection into a single device, providing reliable overcurrent protection with manual reset capability.

Key Features:

  • Trip-free design prevents the breaker from being held ON during fault conditions
  • Single-lever operation with clear on/off indication and vertical/horizontal orientation options
  • Waterproof construction suitable for harsh marine environments
  • Ignition protected - meets SAE J1171 external ignition protection requirements for safe installation on gasoline-powered boats
  • Self-trimming case with recessed mounting holes eliminates need for bezels or mounting panels
  • Round case design allows easy installation with standard hole saw
  • Robust 5/16-inch terminal studs with large clearance accept heavy gauge wire lugs and provide high torque connections

Technical Specifications:

  • Current Rating: 90 Amperes
  • Voltage Rating: 48 Volts DC Maximum
  • Circuit Breaker Type: Thermally responsive bi-metal blade, Type III manual reset
  • Interrupt Rating: 5,000A at 12V DC, 3,000A at 24V DC, 1,500A at 42V DC
  • Case Material: Thermoset polyester
  • Operating Temperature Range: -25°C to +82°C

This panel-mount circuit breaker provides dependable protection for high-current DC circuits in marine applications including battery banks, inverters, windlasses, and thruster systems.

Easy with great prices

Very convenient

Great customer service

quick and easy

Quick and easy

Have been looking for that piston for weeks, so glad you had it!

Quick and easy and nice to have option to use Amazon and Paypal for payment

Very satisfying. I am thankful that your company also offered me a discount from the very beginning. It shows commitment on your behalf to satisfy your customers.

easy pay good prices

Great!

Autoplicity beat everyone's price even with the shipping on an item that no one else had in stock, but still listed.

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Best price for a product I've been shopping for, for months, and when I saw Autoplicity having it for A LOT cheaper, putting the product in my sweet spot price wise, I didn't hesitate to order. <br><br>My bank was a little slow to post the transaction, and I was suprised to get a human on the phone with no effort to make sure my order was properly processed. The gentleman I spoke with was very friendly and promptly answered all my questions. <br><br>Only the $5 I'm getting back for this review can make this deal any better, as I have no suggestion for improving the transaction I made with them.

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