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Sea-Dog Line 420879-1 Hi-Amp Surface Mount Circuit Breaker 150A

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

420879-1
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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Product Details

The Sea-Dog Line 420879-1 is a heavy-duty 150-amp surface mount circuit breaker designed for marine, RV, and high-amperage DC electrical systems. This resettable thermal circuit 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 for high-power accessories and equipment
  • Surface mount design for easy installation in engine compartments, bilge areas, or electrical panels
  • Resettable manual reset button eliminates the need for replacement fuses
  • Thermoset plastic housing with corrosion-resistant stainless steel studs and washers for marine durability
  • Visual trip indicator clearly shows breaker status
  • CE certified for safety and performance
  • ¼"-28 terminal studs for secure electrical connections
  • Rated for up to 48 VDC maximum voltage

Ideal for protecting high-draw equipment such as windlasses, bow thrusters, inverters, and other power-hungry accessories on boats, RVs, and commercial vehicles. The water-resistant, sealed construction makes this breaker suitable for harsh marine environments including engine compartments and bilge installations.

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