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⚡ Fuse your circuits with confidence — power meets precision!
Blue Sea Systems MRBF Terminal Fuse Blocks deliver robust 300A current protection at up to 58V DC in a compact, weatherproof design. Featuring a unique isolated stud for easy stacking and a safety insulating cap, these fuse blocks are engineered for demanding marine and DC power applications, ensuring reliable circuit protection in tight spaces.







| ASIN | B002INJXO6 |
| Best Sellers Rank | 94,068 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 343 in Deck Hardware |
| Brand | Blue Sea Systems |
| Colour | Double Fuse |
| Connector Type | Screw terminal |
| Connector type | Screw terminal |
| Country Of Origin | USA |
| Current Rating | 300 Amps |
| Current rating | 300 Amps |
| Customer Reviews | 4.6 out of 5 stars 257 Reviews |
| Global Trade Identification Number | 00632085021511 |
| Included Components | Blue Sea Systems 2151-BSS Dual MRBF Terminal Fuse Block - 30 to 300A |
| Item Dimensions W x H | 6.4W x 8.9H centimetres |
| Item Type Name | Blue Sea Systems 2151-BSS Dual MRBF Terminal Fuse Block - 30 to 300A |
| Item Weight | 4.8 Ounces |
| Manufacturer | Blue Sea Systems |
| Manufacturer Part Number | 2151 |
| Material | Plastic |
| Model Number | 2151 |
| Mounting Type | 3/8 inch threaded mount |
| Mounting type | 3/8 inch threaded mount |
| Number Of Contacts | 2 |
| Number Of Poles | 2 |
| Number of Positions | 2 |
| Number of contacts | 2 |
| Specification Met | Unspecified Standards Meet |
| UPC | 632085021511 |
| Unit Count | 1.0 count |
| Voltage | 58 Volts (DC) |
P**K
Way too expensive for what it is...
Ridiculously expensive. Well made product but you have to question the cost. Quality costs... unless you're being ripped off!
Y**N
Bon achat
Produit de qualité
S**E
Highest Quality
I have done several DIY solar projects. For safety, I always put a proper sized fuse at the battery. With this MRBF Terminal Fuse Block, I can simply mount the fuse right to the battery post. It is simple to mount, small and very high quality. I only needed a single fuse block, but they had a super special where the dual fuse block was way less expensive then a single fuse block. So I bought the double. This is a very well designed piece if equipment. The build quality is superb and it is made for harsh salt water environments.
P**1
Schlanke Installation
Sehr gutes Produkt, ermöglicht eine schlanke Elektroinstallation mit dem Nachteil, daß die Sicherungen ihren Preis haben. Für mich aber trotzdem angenehmer, als eine extra MEGAfuse-Box plus Kabel einzubauen.
A**E
Dubbio sull’originalità del prodotto.
Arrivato in una bustina trasparente anonima. Non posso escludere che si tratti di merce non originale Blue Sea System
H**I
Great Quality, high price.
This worked great on my 48v battery bank of 8 12v 280 AH ecoworthy batteries. Save so much wire and headaches with the bussbars. Note: do not get the cheaper bojack fuses as they have not been reliable in my experience. I did not like spending $18 for the better fuse but had to anyway…
Trustpilot
2 months ago
1 month ago