Circuit Breaker w/Cover (Resettable)

LNS/Sea-Dog Line resettable inline circuit breaker with a manual reset button and included splash-resistant breaker coverdesigned 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.