Fuse JJN (Class T) 225 Amp

Protect demanding DC power systems with a fast-acting Class T fuse rated 225 Amp, built for high interrupt capacity and quick short-circuit responseideal 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 (225400A 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.