Blue Sea Systems 7148 187 Series DC Circuit Breaker - Surface Mount, 150 Amps
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You have 30 days to request a return. All sale items are final sale.
The Blue Sea Systems 7148 187 Series DC Circuit Breaker is a surface-mount, 150-amp solution for DC circuit switching and overcurrent protection in marine electrical systems, built for durability and protected installation where ignition protection is required.
Key Features
- Single lever operation for clear visual switching status.
- Ignition protected (conforming to SAE J1171), suitable for installation aboard gas-powered boats.
- Weather resistant for reliable use in marine environments.
- Surface mount design for straightforward panel or surface installation.
- 5/16-18 terminal studs for secure connections.
- Maximum voltage: 42 volts DC.
Intended Use
- DC marine electrical distribution
- Battery/charging system branch circuit protection (where DC circuit breakers are appropriate)
- Boat wiring panels requiring surface-mount switching and overcurrent protection
Product Details
- Blue Sea Systems 7148 187 Series DC Circuit Breaker - Surface Mount, 150 Amps
- Circuit protection and switching use case: circuit breaker function for DC circuits.
- Mounting style: Surface mount.
- Current rating: 150 amps (DC).
- Terminal studs: 5/16-18.
- Maximum voltage: 42 volts DC.
- Ignition protection: Conforming to SAE J1171.
Parts Desk Insights
Best Use Case: Choose this breaker when you need both switching and DC circuit protection in a compact, surface-mount format, especially in marine compartments where ignition protection is a requirement.
Common Issues: During installation, confirm the stud size (5/16-18) matches your ring terminals and torque the connections properly. If nuisance tripping occurs, review wiring gauge, load draw, and routing/heat buildup; also verify the breaker rating and system voltage before operation.
Related Products & Accessories
- Browse Circuit Breakers - Explore additional circuit breaker options for DC distribution and protection.
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.