MRBF Terminal Fuse - 150A - MRBF Terminal Fuse - 150A

MRBF Terminal Fuse - 150A - Dimension Drawing

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Blue Sea Systems

5185-BSS

MRBF terminal fuse - 150 A

Designed for protecting high-current circuits, the Blue Sea MRBF 150A terminal fuse provides essential protection directly at the battery terminal. Its compact design allows for quick and secure installation, minimizing unprotected cable lengths. This product includes only the 150A fuse, without the terminal block.

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19,96€

19,96€ ~~22,92€~~

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In stock

Free pickup point shipping over €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

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Installers near you

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Support service

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Technical specifications

Fuse type	MRBF
Nominal voltage	58
Amperage	150.0
Pouvoir de coupure en court-circuit	10.0
Nombre de fusibles	1.0
Mounting type	On battery terminal
Taille des goujons	M8 (8mm)
Taille du filetage des bornes	M8 (8mm)
Fuse included	Oui
Protection anti-déflagrante	Oui
Conformité ABYC	Oui
Housing material	Plastic
Couple de serrage recommandé des bornes	8.47
Section de câble maximale par goujon	107.0
Dimensions (W x H x D)	27.8 x 16.3 x 23.0 mm
Certifications	ABYC,SAE J1171,IP66
Nom du fabricant	Blue Sea Systems
Catégorie Odoo	Merchandise / NAVICO GROUP / 13 - Blue Sea BSS (35)
Description courte du produit	MRBF 150A fuse terminal for protecting high-current circuits in marine installations.
Product Design Type	Safety
Product Model	5185-BSS
Product use	Overcurrent protection
Product range	MRBF Terminal Fuse
Nom court du produit	MRBF 150A
Product type	Fuse

Detailed description

Designed for high-current circuit protection, the Blue Sea Systems MRBF 150A terminal fuse is an essential electrical safety solution for marine installations. This MRBF (Marine Rated Battery Fuse) type fuse is specifically designed for direct mounting on the battery’s positive terminal, minimizing unprotected cable length and reducing the risk of electrical fire in the event of a short circuit or major overcurrent.

Technical specifications and positioning

With a rating of 150 amperes, this fuse is suitable for protecting main circuits or high-consumption equipment such as inverters, bow thrusters, or windlasses. It is designed to operate at a maximum voltage of 58V DC and offers a high interrupting capacity, reaching 10,000A at 14V DC, 5,000A at 32V DC, and 2,000A at 58V DC. This interrupting capacity is a key indicator of its ability to safely interrupt a high fault current. Compared to other fuse types such as ANL or MIDI fuses, the MRBF stands out for its compact design and ease of integration directly on the battery terminal, often via a dedicated terminal block (sold separately). It provides an alternative to bulkier inline fuse holders, enabling clean and optimized electrical distribution installation.

Applications and integration

The Blue Sea Systems MRBF 150A terminal fuse is a fundamental component for compliance with ABYC (American Boat and Yacht Council) electrical safety standards, which require protection within 7 inches (approximately 17.8 cm) of the power source. It integrates seamlessly into the electrical systems of boats, sailboats, and recreational vehicles, where space is often constrained and reliability is paramount. Its insulated design provides additional protection against accidental contact, contributing to the overall safety of the onboard electrical installation.

Documentation

Type	Nom
	EN - Full Scale Fuse Comparison (scaled 1 - 1) - MRBF Terminal Fuse - 150A

Expert opinion

Pol CONIN

Digital Manager

« Primary protection for marine circuits: the advantage of the MRBF 150A terminal fuse »

The Blue Sea Systems MRBF 150A terminal fuse is a critical component for the safety of marine electrical installations. Its primary value lies in providing primary and immediate protection for high-current circuits directly at the battery terminal. This proximity to the power source is crucial for minimizing the length of unprotected cable, a significant risk factor in the event of a short circuit, and for complying with current electrical safety standards. This type of fuse is ideal for protecting circuits dedicated to power-hungry equipment such as thrusters, windlasses, or inverter systems on vessels of all sizes, from rigid inflatables to cruising sailboats.

In terms of installation, the MRBF format greatly simplifies implementation. It is typically mounted on a dedicated fuse holder that attaches directly to the battery terminal, enabling a clean and compact integration. This solution is often preferred over inline fuse holders, which require additional cable lengths and potentially more failure points. Choosing an MRBF fuse is a technical decision for effective protection and minimal bulk at the battery. It should be noted that the fuse holder is a separate and necessary component for installation, and the fuse itself is a consumable that must be replaced after an overcurrent event.

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MRBF terminal fuse - 150 A

19,96€

19,96€ ~~22,92€~~

Frequently Asked Questions

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

An MRBF (Marine Rated Battery Fuse) terminal fuse is an electrical safety device designed to protect high-current circuits in marine installations. Its main purpose is to prevent electrical fire risks in the event of a short circuit or major overcurrent by cutting the power quickly and safely. It is specifically designed for direct mounting on the battery's positive terminal.

What is the maximum operating voltage for this 150A MRBF fuse?

This 150A MRBF terminal fuse is designed to operate at a maximum voltage of 58V DC.

What is the interrupting rating of this 150 amp fuse?

The interrupting rating (AIC - Ampere Interrupting Capacity) of this fuse is as follows:

10 000A at 14V DC5 000A at 32V DC2 000A at 58V DCThis rating is a key indicator of its ability to safely interrupt a high fault current.

For which types of marine equipment is this 150A fuse suitable?

This 150 ampere fuse is suitable for protecting main circuits or high-power equipment onboard, such as inverters, bow thrusters, or windlasses.

Where should the MRBF 150A terminal fuse be installed for optimal protection?

For optimal and safety-compliant protection, the MRBF 150A terminal fuse must be mounted directly on the battery’s positive terminal. This method minimizes the length of unprotected cable, significantly reducing the risk of electrical fire in the event of a fault.

Is a specific mount required to install this MRBF fuse on the battery?

Yes, this MRBF fuse is designed to be mounted directly on the battery terminal, often via a dedicated terminal mount (sold separately). This mount is essential for correct and secure installation of the fuse.

Is this fuse compliant with electrical safety standards for boats?

Yes, the Blue Sea Systems MRBF 150A terminal fuse is a fundamental component for compliance with ABYC (American Boat and Yacht Council) electrical safety standards. These standards require protection within 7 inches of the power source, which this fuse allows thanks to its direct mounting on the battery terminal.

Can this fuse be used with systems operating at voltages other than 12V?

Yes, this fuse is designed to work with systems up to 58V DC. It is therefore compatible with 12V, 24V, 36V, 48V or other intermediate DC voltages, provided the maximum voltage of 58V DC is not exceeded.