Sierra FS84020 FMX Fuse, 40A, Green
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Sierra FS84020 FMX Fuse (40A, Green) is a fast-acting, high-current automotive-style fuse designed for battery and general DC protection.
Key Features
- Fast-acting high-current protection for battery and general DC applications
- 40A rating for demanding electrical circuits
- Green color body for easy amperage identification
- Electrical specification: Max Voltage Rating 32VDC
- Interrupt capacity: 1,500A @ 32VDC
Intended Use
- Battery and general DC power distribution systems
- Marine and automotive-style electrical circuit protection (cartridge/FM F X style fuse applications)
Product Details
- Sierra FS84020 FMX Fuse, 40A, Green
- Fuse style: FMX
- Amperage rating: 40A
- Body color: Green
- Max voltage rating: 32VDC
- Interrupt capacity: 1,500A @ 32VDC
- SKU (variant): 11-FS84020
Parts Desk Insights
Best Use Case: Use this FMX fuse to protect battery and general DC circuits where a fast-acting high-current fuse with a 32VDC maximum rating is specified.
Common Issues: Common fitment issues usually come from using the wrong fuse type (FMX vs. a different cartridge style) or the wrong amperage/color code. Before installing, confirm the fuse style matches your fuse holder/fuse block and verify the circuit’s required fuse rating.
Related Products & Accessories
- Fuses - Browse the Fuses category to match additional amperages and fuse styles.
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.