MEGA Fuse – UL Listed, 72 V DC, 2500 AIC (40 A–300 A)

UL-Listed MEGA Fuses

Protect your DC power system with professional-grade MEGA fuses engineered for safety, reliability, and compliance. Built with a Bakelite high-temperature body and tinned copper elements, these bolt-mount fuses deliver low resistance and stable performance.

Rated to 72V DC with a 2500 A interrupt capacity (AIC), they’re ideal for lithium banks, inverters, chargers, and distribution circuits in vans, RVs, marine, and off-grid power. Pairs perfectly with things like your DC-DC, Solar Controller, or Shore Power Charger.

Looking for holders?

MEGA fuses are designed to be used with a proper bolt-down holder for safe, reliable high-current protection. Choose a holder on its own, or save with a complete fuse + holder bundle.

🧰 View MEGA Fuse Holder ⚡ Fuse + Holder Bundle Kit

Specs at a Glance

Voltage Rating	Up to 72V DC
Interrupt Capacity (AIC)	2,500 Amps @ 72VDC
Certifications	UL Listed
Body Construction	Bakelite high-temperature housing; tinned copper link
Form Factor	Bolt-mount MEGA fuse
Available Ratings	40A, 50A, 60A, 70A, 80A, 100A, 125A, 150A, 175A, 200A, 225A, 250A, 300A, 350A, 400A, 450A, 500A

⚡ Features at a Glance

72V DC system rating
2,500A AIC @ 72V DC
UL certified for verified safety
Bolt-mount MEGA format for secure installs
Bakelite high-temp body resists heat & chemicals
Tinned copper elements for low resistance

Applications

Perfect for RVs, marine power, off-grid cabins, and custom DC systems. Use these fuses to protect inverters, battery banks, charge controllers, and distribution circuits. They’re an excellent match for Sapphire LiFePO₄ batteries, providing safe, UL-listed protection for your system.

Pair with a holder for the safest way to install things like DC-DC chargers, Solar Charge Controllers, DC Distribution Panels, and other high amperage loads.

Need a mount?

MEGA fuses should always be installed in a proper holder to ensure safe, reliable high-current protection.

Single MEGA Fuse Holder Double MEGA Fuse Holder