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Sea-Dog Line 420889-1 Hi-Amp Panel Mount Resettable Circuit Breaker 150A 48V DC

Manufacturer

Sea-Dog Line

<p>For over a century, Sea-Dog Line has stood as a cornerstone of the marine hardware industry, delivering innovative solutions that meet the demanding needs of recreational and commercial boaters. Founded in the early 1920s by entrepreneur Hans "Action" Broson Sneve, the company began with a unique sales approach—showcasing marine hardware aboard a 55-foot cruiser that sailed from Alaska to Mexico. This hands-on philosophy continues to shape Sea-Dog's commitment to producing hardware that performs reliably in the harshest saltwater environments.</p><h3>Industry-Leading Marine Hardware Manufacturing</h3><p>Based in Everett, Washington, Sea-Dog Corporation operates a 75,000-square-foot warehouse stocking over 8 million parts and runs an injection molding facility with 16 machines producing more than 17 million components annually. The company's extensive product line spans anchoring systems, deck hardware, electrical components, plumbing fittings, and lighting solutions—all engineered with marine-grade materials like stainless steel, brass, and UV-resistant polymers. Sea-Dog's recognition as a multiple-time NMDA Supplier of the Year underscores the brand's excellence in both product quality and customer service, while their on-staff ABYC-certified marine technician provides invaluable installation and technical support.</p><h3>Premium Marine Components for Every Vessel</h3><p>Sea-Dog's <a href="/7549-sea-dog-line-windshield-washers-wipers-replacement-motors-201195">windshield washers, wipers, and replacement motors</a> deliver crystal-clear visibility during inclement weather, with both manual and electric options featuring corrosion-resistant stainless steel arms and UV-stable blades designed specifically for marine windshield applications. Their <a href="/7549-sea-dog-line-electric-horns-200351">electric horns</a> include the popular MaxBlast line, which passed rigorous 600-hour salt spray testing while meeting US Coast Guard COLREGS and ABYC standards for audible warning devices. For fuel and water system integrity, Sea-Dog's <a href="/7549-sea-dog-line-deck-fills-200307">deck fills</a> provide secure, leak-free access points constructed from durable stainless steel with snap-in designs that resist corrosion in saltwater environments.</p><p>When maneuvering in low-light conditions, Sea-Dog's <a href="/7549-sea-dog-line-docking-lights-200335">docking lights</a> offer bright LED illumination with minimal power draw, featuring injection-molded housings that withstand impacts and temperature extremes. Proper airflow is essential for preventing moisture buildup below deck, and Sea-Dog's <a href="/7549-sea-dog-line-hose-and-cowl-vents-200534">hose and cowl vents</a> deliver reliable ventilation with low-profile designs that include snap-in deck plates for bilge applications or dorade box compatibility for cabin use. Each product reflects Sea-Dog's century-long dedication to manufacturing hardware that recreational and professional mariners can trust, voyage after voyage.</p>

Part Number

420889-1
06/01/2036 6:52 PM
Sale Price

$45.64

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sea-Dog Line 420889-1 is a heavy-duty 150-amp resettable circuit breaker designed for demanding marine electrical systems. This single-pole thermal-type breaker provides reliable overcurrent protection with a visible indication when tripped, making it easy to identify electrical faults at a glance.

Key Features:

  • 150-amp capacity with 48V DC voltage rating
  • High interrupt rating of 3,000 amperes for robust protection
  • Panel-mount design for clean, professional installation
  • Water-resistant and sealed construction suitable for engine compartments and bilge areas
  • Resettable thermal breaker eliminates the need for fuse replacement
  • Visual trip indicator for easy fault identification

Dimensions:

  • Overall height: 2-15/16 inches
  • Overall width: 1-15/16 inches
  • Panel cutout: 2-1/8 inches
  • Mounting depth: 2-7/16 inches
  • Thread length: 1-9/16 inches

Ideal for protecting high-current circuits on larger vessels, windlasses, bow thrusters, and other heavy-duty marine electrical equipment. The sealed, water-resistant design ensures reliable performance even in harsh marine environments.

Products specifications

Amps

150

Voltage

48

Haven&amp;#039;t received it yet but so far so good

Overall I had a good experience.

Great

So I was skeptical due to a lot of negative reviews online, but I seen they had a great price for Toyo extensa II tires about half the price of everywhere else. So I bought all 4 with the free shipping option, and they were shipped to me in 3-4 days each tire had a different tracking number but they all showed up at the same time. So I will definitely use the site again.

Good

Great prices, and fast delivery!

Great service, quick delivery

Super fast shipping

Exact replacement

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