Blue Sea Systems 7149 187 Series DC Circuit Breaker - Surface Mount, 200 Amps
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Blue Sea Systems 7149 187 Series DC Circuit Breaker provides combined switching and circuit protection in a rugged, surface-mount design for marine DC power distribution.
Key Features
- Single lever operation is clearly visible for quick switching and trip indication.
- Ignition protected (conforming to SAE J1171), designed for safe installation aboard gas-powered boats.
- Weather resistant construction for demanding environments.
- Surface mount style for straightforward installation in DC distribution systems.
- 5/16-18 terminal studs for secure, high-torque wiring connections.
- Maximum voltage: 42 volts DC.
Intended Use
- Marine DC electrical distribution (surface-mount breaker installations)
- Motor/lighting/control circuits requiring both switching and overcurrent protection
- 12/24/42V DC systems (use with conductors sized to the circuit’s design)
Product Details
- Brand/Series: Blue Sea Systems 7149 187 Series
- Type: DC circuit breaker (surface mount)
- Amps: 200 Amps
- Operation/Indicator: single lever operation is clearly visible
- Ignition protection: SAE J1171 (ignition protected)
- Weather: weather resistant
- Terminal studs: 5/16-18
- Maximum voltage: 42 volts DC
Parts Desk Insights
Best Use Case: Use this breaker when you want one device to handle both switching and circuit protection in a DC marine distribution circuit, especially where ignition protection and weather resistance are important.
Common Issues: Double-check that the breaker’s maximum voltage rating matches your system and confirm wire/lug compatibility with the 5/16-18 terminal stud size before final installation. Verify the mounting location and clearances so the surface mount base sits flat and terminals align cleanly.
Related Products & Accessories
- Browse related circuit breakers & fuses - Pair breakers with the appropriate fuse blocks/circuit protection components for your distribution layout.
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.