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Blue Sea Systems 7144 187-Series Surface Mount DC Circuit Breaker 100 Amp

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

7144
06/01/2036 11:34 AM
Sale Price

$92.64

In Stock (5)

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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 7144 is a 100-amp thermal circuit breaker from the 187-Series, designed for surface mount installation in marine DC electrical systems. This single-pole breaker combines circuit protection and switching functionality into one rugged, waterproof device, making it ideal for protecting high-current circuits on boats, RVs, and other 12-48V DC applications.

Key Features:

  • 100 amp rating with thermally responsive bi-metal blade design
  • Trip-free operation prevents holding switch "ON" during fault conditions
  • Waterproof construction with thermoset polyester case
  • SAE J1171 ignition protection certified - safe for gasoline-powered vessels
  • Robust 5/16" terminal studs with high torque capacity for secure connections
  • Recessed mounting holes for clean, professional installation
  • Large single lever with clear ON/OFF indication and trip status visibility
  • Rated for 48 volts DC maximum with interrupt ratings up to 5,000 amps at 12V

Technical Specifications:

  • Circuit Breaker Class: Type III - Switchable/Manual Reset
  • Voltage Rating: 12-48 VDC maximum
  • Interrupt Rating: 5,000A @ 12VDC, 3,000A @ 24VDC, 1,500A @ 42VDC
  • Operating Temperature: -25°C to +82°C (-13°F to 180°F)
  • Terminal Size: 5/16" studs accommodate large gauge wire lugs

This circuit breaker provides reliable overcurrent protection while eliminating the need for separate switches in your electrical system. The vertical/horizontal lever orientation and trip-free design ensure safe operation even under fault conditions.

Products specifications

Amps

100

Mount Type

Surface

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Thanks

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Checkout was easy

great price and customer service

Will see how fast the item ships

Easy to use

easy checkout

it seems good hope this part is right

Order shipped quickly and Autoplicity had the best price. A pleasure to do business with. Thanks

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