Quick Specs
Description
- 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 2/0 cable
- Accepts Blue Sea Systems Square Format standard or custom label
- Fuses sold separately
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Quick Specs
Accessories
Specifications
| SKU | 7721 |
| UPC | 632085077211 |
| Brand | Blue Sea Systems |
| Category | Electrical |
| Country of Origin | UNITED STATES |
| Weight | 0.48 |
| Dimensions | 8 x 4 x 2 |
| Status | Active |
| Last Synced | 9/4/2026, 2:02:32 AM |
Compliance & Shipping
WARNINGProp 65 Notice
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Product Literature
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Frequently Bought Together
Compare Key Features
| Feature |  Blue Sea 7721 Mega/AMG Safety Fuse Block CURRENT |  Blue Sea 5065 Waterproof In-Line Fuse Holder ATO/ATC |  Blue Sea 5056100 - Water Resistant ST-Blade Fuse Block w/Cover |  Blue Sea 5191 Terminal Fuse Block 30-300AMP |  Blue Sea 5045 ST Blade Compact Fuse Blocks - 4 Circuits w/Cover |
|---|---|---|---|---|---|
| Price | $43.34 | $10.19 | $47.59 | $32.29 | $32.29 |
| Brand | Blue Sea Systems | Blue Sea Systems | Blue Sea Systems | Blue Sea Systems | Blue Sea Systems |
| Condition | New | New | New | New | New |
| Availability | In Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.48 | 0.08 | 0.67 | 0.5 | 0.27 |
| Dimensions | 8 x 4 x 2 | 4 x 2 x 1 | 8 x 8 x 2 | 6 x 4 x 1 | 8 x 3 x 2 |
| SKU | 7721 | 5065 | 5056100 | 5191 | 5045 |
| Country | UNITED STATES | TAIWAN | MEXICO | TW | UNITED STATES |
| View Item | View Item | View Item | View Item | View Item |
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Price
$43.34