Sierra FS84200 Marine Rated Battery Fuse, 175A, White
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Provide reliable, marine-rated high-current circuit protection at the battery with the Sierra FS84200. Designed for DC main circuit protection on large battery banks, this bolt-down terminal fuse mounts directly to the positive battery stud for compact installation in tight spaces.
Key Features
- Ignition protected when used with Sierra MRBF Fuses
- Bolt-down design for high-vibration applications
- Standard isolated M8 stud design allows the stacking of terminals
- Protective, insulating cap helps prevent accidental shorts
- Compact fuse holder for high-current DC protection in tight spaces
- Designed for DC Main, Bow Thruster, Inverter, and windlass circuit protection
- 175A fuse capacity (white)
- 300A maximum amperage rating
- Meets ABYC requirements for DC main circuit protection on large battery banks with high-interrupt rating
- Easy fault indication with clear fuse display
- Color-coded amperage identifier
Intended Use
- DC main circuit protection on large battery banks
- Marine bow thruster circuit protection
- Inverter circuit protection
- Windlass circuit protection
- General DC high-current circuit protection for marine electrical systems (terminal-fuse applications)
Product Details
- Product: Sierra FS84200 Marine Rated Battery Fuse
- Fuse rating: 175A (white)
- Color-coded amperage identifier
- Mounting: bolts-down design for high-vibration applications
- Stud design: standard isolated M8 stud design for stacking terminals
- Protection feature: includes protective insulating cap to help prevent accidental shorts
- Maximum amperage rating: 300A
- Application: DC Main circuit protection on large battery banks with high-interrupt rating (ABYC compliant)
- Fault indication: clear fuse display
- SKU: 11-FS84200
- Variant weight provided on the product record: 45 GRAMS
Parts Desk Insights
Best Use Case: Ideal for protecting high-current DC circuits close to the battery—such as DC main, bow thruster, inverter, and windlass—especially when you need compact protection in a tight mounting area.
Common Issues: Common install issues include incorrect fuse type/block pairing (MRBF fuse compatibility matters) and loose mounting in high-vibration locations—confirm the fuse type used and verify the terminal stack is correctly arranged on the isolated M8 stud.
Related Products & Accessories
- Browse Fuses - Match the correct MRBF-style fuse rating for your application.
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.