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⚓ Power your boat with confidence — fuse protection that won’t let you down!
The Blue Sea Systems 7720 Fuse Block MIDI is a compact, ignition-protected fuse block designed specifically for marine use on gasoline and diesel boats. Featuring a sealed cover that shields fuses from harsh marine environments and an insulating cover that meets ABYC/USCG safety standards, it ensures reliable, long-lasting electrical protection. Lightweight and easy to install, this fuse block is a trusted choice among boating professionals and enthusiasts alike.





| ASIN | B004T1VYLA |
| Best Sellers Rank | #86,075 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Fuse Blocks (Tools & Home Improvement) |
| Brand Name | Blue Sea Systems |
| Color | blue/sea |
| Customer Reviews | 4.8 4.8 out of 5 stars (166) |
| Date First Available | March 21, 2011 |
| Included Components | FUSE BLOCK MIDI |
| Item Dimensions LxWxH | 8 x 4 x 2 inches |
| Item Package Dimensions L x W x H | 7.24 x 3.98 x 1.81 inches |
| Item Weight | 5.3 Ounces |
| Manufacturer | Blue Sea Systems |
| Material | Plastic |
| Model Name | FUSE BLOCK MIDI |
| Number of Items | 1 |
| Package Weight | 0.2 Kilograms |
| Part Number | 7720 |
| Style | Music |
| Warranty Description | LIMITED WARRANTY |
N**L
Great quality
I used this as well as several other blue sea parts on a build. The blue sea parts are excellent quality, easy to work with, and well worth the investment.
A**R
recommend
good product heavy duty.
N**G
I returned it...
While this product is durable, looks great and functions well. I returned this product though. Why would I want a mini ANL fuse holder that's as big as an standard ANL holder? This was just too big for me I wish I would have taken a picture side by side... Its literally the same size as an ANL holder.
A**R
Quality Fuse Block Midi
This is the third fuse block midi holder I bought from Blue Sea Systems. I like the quality, durability, and design of the fuse holder. Half-inch nuts secure the wire lugs at each end and can accept the wire at any angle by breaking off the sides of the cover. The midi fuse is secured by two phillips head screws which make it easy to install or remove the fuse. This only accepts midi fuses. The plastic protective cover is held on securely by sturdy plastic clips that can withstand the vibrations while driving my van and not fall off like other protective covers do. I would buy this fuse block midi holder again.
A**R
Another great product from Blue Sea!
Used for my travel trailer solar upgrade project. Always high quality.
M**K
Drugs are Bad, Mmkay
Love it. Makes my pickles sweeter
B**H
Robust and Reliable . . .
I don't always relish the idea of building a new electrical circuit or tearing into an old one. But it's high quality products like this that can make the job so much more enjoyable. This fuse holder is a bit bulky but if you have the space to use it, you can be assured that this component will do the job. You can go to the Blue Sea Systems web site to get the exact dimensions. Like all Blue Sea products, the sheer quality and thoughtful design of this product encourages me to build the rest of my circuits to the same high standard.
P**U
solid fuse holder.
Pretty well made but it looks like there's only 1 way the wire can come out each end and not 3 like it says in the description. I used an M6 x 8mm screw to attach it to my 4runner's frame. It's much bigger than I expected, so if you have a space that's tight, check your measurements.
A**E
Das Sicherungshaltergehäuse ist sehr gut, robust und wertig. Die Sicherung und die Anschlüsse für die Sicherung sind im Gehäuse Schutzart IP66 mit Dichtung. Die separaten Anschlüsse für das Kabel sind nicht Ausführung IP66, diese sind nur abgedeckt aber offen ev. IP20. Für mich waren die separaten Anschlüsse von Kabel und Sicherung wichtig. Die teilweise IP66 - Ausführung ist für mich sinnfrei.
A**O
Garantía de buenos productos
S**.
Good price
J**1
Blue sea makes a good, solid product
B**D
good
Trustpilot
2 months ago
2 days ago