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Sea-Dog Line 420871-1 Surface Mount Resettable Circuit Breaker 30 Amp 48V

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

420871-1
06/22/2036 2:00 AM
Sale Price

$45.64

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sea-Dog Line 420871-1 is a heavy-duty 30-amp surface mount circuit breaker designed for marine electrical systems up to 48 volts. This single-pole thermal breaker provides reliable overcurrent protection with a high interrupt capacity of 3000 amperes, making it suitable for demanding marine applications.

Key Features:

  • 30-amp capacity rated for up to 48 volts DC
  • Visible trip indicator shows when breaker has been activated
  • Resettable design with manual reset button
  • Surface mount installation requires no panel cutout
  • Water-resistant and sealed construction for engine compartments and bilge areas
  • 3000-ampere interrupt rating for high-performance protection
  • Compact footprint with built-in mounting flanges

Specifications:

  • Amperage Rating: 30 amps
  • Voltage Rating: 48 volts DC
  • Breaker Type: Single-pole thermal
  • Mounting Dimensions: A=2-7/8", B=1-7/8", C=1-3/4", D=2-3/16", E=1-1/16"

Ideal for protecting bilge pumps, lighting circuits, electronics, and other marine electrical equipment. The thermal protection automatically trips under overload conditions while the sealed housing resists moisture and corrosion in harsh marine environments.

Products specifications

Amps

30

Fast and easy

good

Great pricing

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