MRBF Terminal Fuse - 250A - MRBF Terminal Fuse - 250A

MRBF Terminal Fuse - 250A - Dimension Drawing

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Blue Sea Systems

5189-BSS

Fusible terminal MRBF - 250 A

Le fusible terminal BLUE SEA MRBF 250A (5189-BSS) est conçu pour la protection des circuits de forte intensité directement sur les bornes de batterie marines. Il assure une coupure rapide et fiable en cas de surcharge ou de court-circuit, optimisant la sécurité de votre installation électrique.

Le produit inclut un fusible terminal MRBF 250A.

Public priceGet pro pricing

19,87€

19,87€ ~~22,92€~~

IVA inclòs Expedició calculada en el moment del pagament.

En estoc

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

through our network of certified installers

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Service d'assistance

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Technical specifications

Tipus de fusible	MRBF
Tensió nominal	58 V DC
Amperatge	250.0
Poder de tall en curtcircuit	10.0
Nombre de fusibles	1.0
Tipus de muntatge	Sur goujon
Mida de les clavilles	M8
Mida de la rosca del terminal	M8
Fusible inclòs	Oui
Protecció antiexplosiva	Oui
Ignífug	Oui
Conformitat ABYC	Oui
Material dels contactes	Cuivre étamé
Material de la carcassa	Thermoplastique UL 94V0 et Céramique
Parell de cargol recomanat de les terminals	8.47
Secció de cable màxima per cargol	107.0
Pes	0.05
Interval de temperatura de funcionament	-40°C à +85°C
Certificacions	ABYC,SAE J1171,IP66,UL
Application Environment	Marin
Compact Design Benefit	Gain de place, réduction de l'encombrement
Conductor Material Plating	Étamé
Fire Prevention Feature	Oui
Fuse Element Material	Cuivre
Portafusible integrat	Non
Simplicitat d'instal·lació	Élevée
Èmfasi del disseny del producte	Sécurité, compacité
Nivell de robustesa del producte	Élevé
Gama de productes	MRBF
Tipus de producte	Fusible

Detailed description

Dissenyat per a la protecció de circuits d’alta intensitat, el fusible terminal BLUE SEA MRBF 250A (5189-BSS) ofereix una solució compacta i segura per a les instal·lacions elèctriques marines. Aquest fusible es munta directament sobre les bornes de bateria o sobre punts de distribució compatibles, reduint així les longituds de cable i els punts de connexió, cosa que disminueix la resistència i el risc de fallada. Està específicament dimensionat per gestionar un corrent nominal de 250 amperes, cosa que el fa adequat per a equips consumidors com ara onduladors, propulsors d’etrava o viradors.

Protecció òptima per a sistemes marins

El concepte MRBF (Marine Rated Battery Fuse) es distingeix dels fusibles en línia tradicionals com els ANL o Class T pel seu format i mode d’encesa. Mentre que els fusibles ANL i Class T requereixen un portafusible extern i cables intermedis, el fusible terminal BLUE SEA MRBF 250A s’integra directament a la borneta positiva de la bateria. Aquesta concepció simplifica el cablejat, redueix l’espai ocupat als compartiments motors o als cofres de bateria i disminueix el nombre de components necessaris per a una protecció eficaç. Assegura una tallada ràpida i fiable en cas de sobrecàrrega o curtcircuit, protegint així tot el sistema elèctric i evitant riscos d’incendi.

Integració i compatibilitat

El fusible terminal MRBF 250A és un element essencial dels sistemes de protecció elèctrica moderna. Forma part de la gamma de productes BLUE SEA, reconeguda per les seves solucions robustes i fiables per a l’entorn marí. Pot utilitzar-se com a complement d’altres proteccions de circuit per a instal·lacions de distribució DC, assegurant una protecció primària al més proper a la font d’energia. El seu format compacte queda il·lustrat mitjançant els esquemes de comparació a escala, permetent una planificació precisa de l’espai necessari per a la seva instal·lació.

Documentation

Type	Nom
	EN - Full Scale Fuse Comparison (scaled 1 - 1) - MRBF Terminal Fuse - 250A

Expert review

Pol CONIN

Responsable digital

« High-intensity protection for marine systems »

The Blue Sea MRBF 250A terminal fuse represents a strategic solution for protecting high-current circuits on vessels. Its unique design allows direct mounting on the battery’s positive terminal, which is crucial for minimizing the length of unprotected cables and thus reducing fire risks in the event of a short circuit between the battery and the first point of protection. For applications such as bow thrusters, windlasses, or high-power inverters (250A being a significant current rating), this proximity to the source is a major safety advantage.

Installation is simplified: the fuse integrates directly into the terminal system, often replacing a standard nut on the battery stud or a compatible MRBF distribution block. This provides significant space savings compared to classic inline fuse holders and their associated wiring. It is imperative to ensure that the battery stud or distribution block is compatible with the MRBF format for a secure and loss-free connection. This type of fuse is a wise choice for installations requiring robust and compact primary protection, but it does not replace secondary protections for lower-current distribution circuits.

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Fusible terminal MRBF - 250 A

19,87€

19,87€ ~~22,92€~~

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Frequently Asked Questions

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What is an MRBF terminal fuse and what is its main function?

The MRBF (Marine Rated Battery Fuse) terminal fuse is an electrical protection device designed for high-current circuits in marine environments. Its main function is to protect the entire electrical system from overloads and short circuits by quickly cutting off the current, thereby preventing fire hazards and equipment damage.

What is the nominal rating of this MRBF fuse and what applications is it suitable for?

This MRBF fuse has a nominal rating of 250 amperes. It is specifically sized to protect high-power equipment with high current draw, such as inverters, bow thrusters, windlasses, and other marine electrical systems requiring robust protection.

How is the MRBF fuse installed on a marine electrical system?

The MRBF terminal fuse is designed to be mounted directly on battery terminals or compatible distribution blocks. This design minimizes cable lengths and connection points, reducing electrical resistance and the risk of failure.

What are the advantages of the MRBF design compared to traditional inline fuses like ANL or Class T?

The MRBF design offers several key advantages:

Direct integration: It mounts directly on the battery's positive terminal, unlike ANL or Class T fuses which require an external fuse holder and intermediate cables.Wiring simplicity: This direct integration simplifies wiring and reduces the number of components needed.Space savings: It reduces clutter in engine compartments or battery storage areas.Optimized protection: It ensures fast and reliable cutoff in case of overload or short circuit, effectively protecting the electrical system.

Is this fuse specifically designed for the marine environment?

Yes, absolutely. The term 'MRBF' stands for 'Marine Rated Battery Fuse', indicating it is specifically designed and tested for the robustness and reliability required in demanding marine environments. It is part of the BLUE SEA product line, known for its reliable solutions for the nautical sector.

Is it possible to use this fuse with different battery brands or distribution blocks?

This fuse is designed to be mounted on standard battery terminals or compatible distribution blocks. As long as the dimensions of the terminals or blocks match the mounting specifications of the MRBF fuse, it should be compatible with most brands.

What precautions should be taken when installing an MRBF fuse?

When installing an MRBF fuse, it is essential to ensure the connection is secure and clean to guarantee optimal conductivity and avoid hot spots. The polarity must also be respected, and the appropriate tools must be used for correct tightening. Professional installation is always recommended for marine electrical systems.

Can this fuse be used to protect multiple circuits simultaneously?

The MRBF 250A fuse is designed to protect a main circuit or a group of high-current circuits connected to the same battery terminal or distribution bus. If you need to individually protect several secondary circuits, it is recommended to use additional fuses or circuit breakers sized for each specific circuit downstream of the main MRBF fuse.