

⚡ Power up your marine circuits with confidence—stack, protect, and conquer the waves!
The Blue Sea Systems MRBF Terminal Fuse Block features a cutting-edge isolated stud design compatible with standard M8 hardware, enabling terminal stacking for scalable electrical setups. Compact yet powerful, it provides high-amp fuse protection ideal for DC mains, inverters, windlasses, and bow thrusters. Built weatherproof for harsh marine environments, it includes an insulating cap to prevent shorts, ensuring safe and reliable circuit protection in tight spaces.







| ASIN | B0019ZBTV4 |
| Batteries | 1 Unknown batteries required. |
| Batteries Included? | No |
| Best Sellers Rank | #73,866 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #171 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
M**Y
Tested out mrbf with blue sea 300ah fuse attached to 280ah & 2000w inverter & 1500w ninja coffee maker.
Trustpilot
1 month ago
1 month ago