Fuse JJN (Class T) 225 Amp
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You have 30 days to request a return. All sale items are final sale.
Protect demanding DC power systems with a fast-acting Class T fuse rated 225 Amp, built for high interrupt capacity and quick short-circuit response—ideal for inverter-related and other high-amperage electronic equipment protection.
Key Features
- Fast short-circuit response to help protect high-amperage electronics such as inverters (per manufacturer description).
- 20,000 Amp interrupt capacity (AIC), UL rated for DC applications under UL 189L (per manufacturer description).
Intended Use
- DC circuit protection for high-amperage equipment (such as inverters).
- Marine and RV power systems using Class T fuse protection components.
Product Details
- Fuse: JJN (Class T).
- Rated current: 225 Amp.
- SKU: 661-5117.
- Model/Series: 5117 (Class T fuse series on manufacturer listing).
- Interrupt capacity: 20,000 Amp interrupt capacity (AIC).
- UL rating: UL listed for DC applications under UL 189L.
- Package/qty: Single fuse (1).
Parts Desk Insights
Best Use Case: Choose this fuse when your system calls for fast-acting Class T protection to reduce the time a short circuit can stress downstream electronics (including inverter feeds).
Common Issues: Most install problems come from mismatch with the compatible Class T fuse block/holder and incorrect fuse rating for the circuit. Confirm the correct Class T fuse type and amperage for your fuse holder and wiring layout before installation.
Related Products & Accessories
- Class T Fuse Block (225–400A range) - To build a complete Class T fuse protection solution, pair the fuse with the correct compatible Class T fuse block/holder for your system.
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.