Blue Sea Systems 7048 187 Series DC Circuit Breaker - Panel Mount, 150 Amps
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The Blue Sea Systems 7048 187 Series DC Circuit Breaker combines manual switching and DC circuit protection in one panel-mount device. It’s ignition protected and designed for marine use where a single, clearly visible breaker location helps simplify electrical control and troubleshooting.
Key Features
- Panel mount DC circuit breaker for marine electrical distribution
- Combines switching and circuit protection into one device (single accessible control)
- Single lever operation is clearly visible
- Ignition protected (conforming to SAE J1171) for installation aboard gas-powered boats
- Weather resistant marine construction
- 150 amps DC breaker rating (187 Series)
- 5/16-18 terminal studs
- Maximum voltage: 42 volts DC
Intended Use
- 12V/24V DC marine electrical systems requiring breaker-based switching and circuit protection
- Onboard DC power distribution and branch circuit protection where an ignition-protected panel-mount breaker is required
Product Details
- Product: Blue Sea Systems 7048 187 Series DC Circuit Breaker - Panel Mount, 150 Amps
- Mounting style: Panel mount
- Breaker family: 187 Series
- Amps: 150 amps
- Terminal studs: 5/16-18
- Maximum voltage: 42 volts DC
- Ignition protection: Conforming to SAE J1171
- Operation: Single lever / clearly visible switching
Parts Desk Insights
Best Use Case: A practical choice when you want one panel-mounted breaker to both switch a DC circuit and provide protection against fault conditions—especially for gas-engine boat installations that need ignition-protected components.
Common Issues: If this breaker won’t fit or wire correctly, it’s usually due to panel cutout/layout differences or terminal lug mismatch. Double-check the panel opening and ensure the conductor lugs match the 5/16-18 terminal stud size before mounting and tightening connections.
Related Products & Accessories
- Browse Circuit Breakers - Explore matching Blue Sea Systems breakers and related electrical protection components.
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.