Blue Sea Terminal Fuse, 175 Amp, White
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You have 30 days to request a return. All sale items are final sale.
Protect your vessel’s DC main circuit with a Blue Sea Systems MRBF terminal fuse (175A, white). Designed for ignition-protected installation with a clear window for quick visual confirmation of a blown fuse—ideal for large battery bank protection and common high-draw systems.
Key Features
- 175A MRBF terminal fuse for DC main circuit protection
- Interrupt rating satisfies ABYC requirements for DC main circuit protection on large battery banks
- Ignition protected for safe installation aboard gasoline powered boats
- Clear window provides visual indication of a blown fuse condition
- Color coded for each amperage
- Requires a compatible terminal fuse block (not intended to mount directly to the battery terminal)
Intended Use
- Marine DC electrical systems
- DC main circuit protection on large battery banks
- Inverters
- Windlasses
- Bow thrusters
Product Details
- Product Title: Blue Sea Terminal Fuse, 175 Amp, White
- Fuse Type: MRBF terminal fuse
- Amperage Rating: 175 Amp
- Color: White
- Part / SKU: 661-5186 (Blue Sea Systems 5186)
- Visual Indicator: Clear window for blown condition
- Application Note: Requires a terminal fuse block; do not mount fuse directly to the battery terminal.
Parts Desk Insights
Best Use Case: Use this MRBF terminal fuse with the proper Blue Sea terminal fuse block to provide ABYC-oriented DC main protection on larger battery banks, where quick fuse status checks are helpful.
Common Issues: Most service calls with terminal fuses come from incorrect installation location (mounting directly to the battery terminal) or using the wrong terminal fuse block—confirm the mating fuse block before final assembly and inspect the clear-window indicator after any fault event.
Related Products & Accessories
- Blue Sea Terminal Fuse Block (compatible with 5186/661-5186) - Required companion part for proper installation—choose the correct fuse block for MRBF/terminal fuse use.
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.