- Ignition protected for installation aboard gasoline or diesel powered boats
- Sealed cover protects fuses from the harsh marine environment
- Insulating cover satisfies ABYC/USCG insulation requirements
- Cover breakouts allow wire access in any direction
- 300A maximum with 4/0 cable
- Accepts Blue Sea Systems Square Format standard or custom label
- Fuses sold separately
Blue Sea 7721 MEGA® / AMG® Safety Fuse Block
Ignition and ingress protected to provide in-line fusing for a single circuit up to 300A.
In stock
Order now, ships tomorrow
Free Delivery
Orders over $100
Tech Support
USA based
- Brand
- Blue Sea Systems
- System Voltage
- 24V, 12V
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Same-Day Shipping
Most orders placed before 1:00 PM PDT on business days ship same day from our California warehouse. Expedited overnight and 2-day options available at checkout.
Free Delivery
Take advantage of free standard shipping on orders over $100. Only available for shipping addresses in the Contiguous United States.
Returns & Warranty
We offer a 30-day return policy for unused items in original packaging. Manufacturer warranties apply to all products.
Not sure this is the right product?
Our USA-based technical team can help you size your system. Mon-Fri 7:30AM to 4:00PM PST.
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