Sea-Dog Line Fuse Holders - In Line

Sea-Dog Line Inline Fuse Holders: Marine-Grade Circuit Protection

Sea-Dog Line has been a trusted name in marine hardware for over a century, and their lineup of inline fuse holders reflects that same commitment to durability and reliability on the water. Designed specifically for the demanding conditions of the marine environment, Sea-Dog's inline fuse holders are engineered to protect onboard electrical circuits from overcurrent events and short circuits — keeping sensitive electronics, lighting, and accessories safe whether you're in calm harbor waters or rough open sea.

Built for Wet & Semi-Wet Marine Environments

What sets Sea-Dog Line apart in the inline fuse holder category is their focus on watertight construction. Watertight holders feature a snap-tight connection for use in wet or semi-wet locations — a critical design consideration for any wiring run on a boat, where moisture, spray, and humidity are constant threats. This snap-tight closure creates a reliable seal that helps keep corrosion and water intrusion out of the fuse connection, extending the life of both the holder and the fuse itself.

A Versatile Range of Fuse Holder Styles

Sea-Dog Line offers inline fuse holders across several fuse types to suit different circuit protection needs:

• AGC Glass Tube Holders: AGC Watertight Inline Fuse Holders accommodate standard 1/4" x 1-1/4" glass fuses in amperage ratings from 10A to 50A, with wire gauge compatibility from 8–16 AWG.
• ATO/ATC Holders: The ATO/ATC Inline Fuse Holder is designed to accept ATO/ATC automotive-style spade terminal fuses , making them a natural fit for modern marine electrical systems that mirror automotive wiring conventions.
• Maxi Inline Fuse Holders: The Maxi Inline Fuse Holder is constructed of injection-molded PVC and handles up to 60 amps , making it ideal for higher-draw circuits like bilge pumps, windlasses, or inverters.
• Dual Fuse Holders: The dual fuse holder features a specially designed case molded with a second fuse pocket, allowing a spare fuse to be stored for convenient access if necessary — a smart detail for offshore or remote boaters who can't easily reach a parts store.

Injection-Molded Quality from a Century-Old Marine Manufacturer

Sea-Dog Line is a third-generation family business with a long history of providing high-quality marine hardware and accessories for recreational boaters. Their injection molding facility in Washington state operates 16 injection molding machines that run 24 hours a day, 6 days a week, producing over 17 million parts annually. That in-house manufacturing capability means consistent quality control across every inline fuse holder that leaves the factory.

Sea-Dog also has an ABYC-certified marine technician on staff to support technical and installation questions — a reassuring resource for boaters tackling DIY electrical projects who want to make sure their installations meet recognized marine safety standards.

Why Choose Sea-Dog Line for Inline Fuse Holders?

• Watertight snap-tight designs rated for wet and semi-wet marine locations
• Multiple fuse formats: AGC glass tube, ATO/ATC spade, and Maxi blade styles
• Amperage options ranging from 10A for small accessories up to 60A for high-draw circuits
• Dual-holder models with built-in spare fuse storage for added peace of mind
• Over 100 years as a supplier of quality marine parts for retail and OEM customers

Whether you're rewiring a center console, protecting a new VHF radio circuit, or upgrading aging fuse holders on a cruiser, Sea-Dog Line's inline fuse holders offer the watertight reliability and broad format selection that marine electrical work demands. Browse the full selection of Inline Fuse Holders or explore everything Sea-Dog Line has to offer for your boat.