

⚓ Power up your marine circuits with confidence and style!
Blue Sea Systems MRBF Terminal Fuse Blocks feature a new isolated stud design using standard M8 hardware for easy stacking and compact installation. Designed for high-amp fuse protection, they are ideal for DC mains, inverters, windlass, and bow thruster circuits. Weatherproof and equipped with an insulating cap, these fuse blocks prevent accidental shorts and withstand harsh marine environments, making them a reliable choice for small open-cockpit boats and tight spaces.







| ASIN | B0019ZBTV4 |
| Batteries | 1 Unknown batteries required. |
| Batteries Included? | No |
| Best Sellers Rank | #73,587 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #172 in Fuses & Holders |
| Brand | Blue Sea Systems |
| Color | Single Fuse |
| Customer Reviews | 4.6 4.6 out of 5 stars (852) |
| Date First Available | 6 August 2012 |
| Department | Battery Switches, Switch Panels, Electrical |
| Is Discontinued By Manufacturer | No |
| Item model number | 5191 |
| Length | 3 inches |
| Manufacturer | Blue Sea Systems |
| Material Type | Plastic |
| Number of Items | 1 |
| Product Dimensions | 6.35 x 6.35 x 5.08 cm; 45.36 g |
| Size | 2.40'' x .79'' |
| Style | 1 Fuse |
| Weight | 0.5 Pounds |
| connector-type | Screw |
M**T
Very neat system for mounting fuse directly to battery terminal. Changed battery lugs to cargo type so that fuse block would be mounted vertically.
A**R
Well made, easy to fit
N**.
Très compact, plus sécuritaire que les fusibles "inline" ou de type ANL , vous ne vous trompez pas côté qualité... n'oubliez pas de commander aussi les fusibles, elles ne sont pas incluses ...
E**T
Misleading picture and description - fuse missing on delivered item
H**L
High quality, easy to install. It's all about the fuse now to see if this works. Hopefully it never trips.
Trustpilot
2 months ago
3 weeks ago