Sea-Dog 4208821 Hi-Amp Panel Mount Resettable Circuit Breaker 40A, 48 Volts
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The Sea-Dog 4208821 Hi-Amp panel mount resettable circuit breaker is a single-pole thermal type breaker designed for 48VDC systems. It includes a visible indication of a tripped condition and is built for marine environments, including engine compartment and bilge area applications.
Key Features
- Visible indication of tripped condition
- Single pole thermal type resettable breaker
- 48VDC voltage rating
- Interrupt level: 3000 amperes
- Panel mounted for clean, protected installation
- Water resistant and sealed for engine compartment and bilge area applications
- Thermoset plastic construction with stainless steel studs and washers
- CE certified
Intended Use
- 48VDC marine electrical circuits
- Engine compartment and bilge area power distribution protection
- Auxiliary and accessory circuit protection in marine systems
Product Details
- SKU: 354-4208821
- Sea-Dog Hi-Amp Panel Mount Resettable Circuit Breaker
- Amps (rating): 40A
- Voltage rating: 48 Volts (48VDC)
- Breaker type: Single pole thermal type
- Interrupt level: 3000 amperes
- Panel mount, water resistant and sealed construction
- Construction: Thermoset plastic with stainless steel studs and washers
- CE certified
- Panel cutout/indicator measurement values listed as: A 2-15/16", B 1-15/16", C 2-1/8", D 2-7/16", E 1-9/16"
Parts Desk Insights
Best Use Case: Use this resettable circuit breaker as overcurrent protection for a dedicated 48VDC circuit where a panel-mounted, sealed breaker with a visible trip indication is desired.
Common Issues: If the breaker repeatedly trips, verify load current draw and wiring connections before resetting. Also double-check panel mounting/fitment against the diagram measurements so the studs, washers, and panel seal engage correctly for water-resistant installation.
Related Products & Accessories
- Browse circuit breakers (collection) - Use the Circuit Breakers collection to match other Sea-Dog Hi-Amp breaker ratings and styles.
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.