Circuit Breaker w/Cover (Resettable)
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LNS/Sea-Dog Line resettable inline circuit breaker with a manual reset button and included splash-resistant breaker cover—designed to protect higher-amperage accessory circuits in marine electrical systems.
Key Features
- Inline resettable circuit breaker with manual reset button
- Ignition protected for installation aboard gasoline powered boats
- Designed for higher amperage accessory circuits
- May be used on 12V or 24V systems
- Injection molded nylon and polycarbonate construction
- Stamped brass #10-32 studs with nuts
- Includes splash proof breaker cover (420840)
- Battery/power-in and protected auxiliary/power-out post function: copper post = power in, silver post = protected power out
- Complies with SAE standard J553 and SAE J1171
Intended Use
- Marine accessory circuit protection (higher-amperage accessory circuits)
- 12V and 24V marine electrical systems
- Gasoline engine boat installations (ignition-protected application)
Product Details
- Product Type: Circuit Breakers
- Reset Type: Manual reset (resettable)
- Configuration: Inline resettable circuit breaker with two protected terminals/posts
- Post/Terminal Function: Copper post is the battery or “power in” post; silver post is the auxiliary or “power out” protected post
- Studs/Hardware: Stamped brass #10-32 studs with nuts
- Included: Breaker Cover (420840)
- Ignition Protection/Compliance: Complies with SAE standard J553 and SAE J1171
- Voltage Systems: For 12V or 24V systems
- SKU/Variant Identifier: 354-4208551
Parts Desk Insights
Best Use Case: Use for inline, resettable overcurrent protection of a marine accessory circuit where you want a manual reset breaker instead of a replaceable fuse.
Common Issues: If the breaker trips repeatedly, confirm the accessory load and wiring (including correct connections to the copper “power in” post and silver “power out” protected post) and inspect the breaker cover seating for proper protection. If nuisance tripping continues after verifying load and wiring, consult the relevant marine electrical wiring diagram and service documentation.
Related Products & Accessories
- Browse circuit breakers & fuse holders - Use the Circuit Breakers collection to match the correct breaker amperage and style for your protected accessory circuit.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.