ST Blade Compact Fuse Blocks - 8 Circuits - ST Blade Compact Fuse Blocks - 8 Circuits

ST Blade Compact Fuse Blocks - 8 Circuits - Wiring Diagram

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Blue Sea Systems

5046B-BSS

Compact ST blade fuse blocks - 8 circuits

The compact ST blade fuse block with 8 circuits from BLUE SEA (5046B-BSS) is an IP66 electrical protection solution designed for marine installations up to 32V DC. It provides ignition protection and tinned copper busbars, with a capacity of 30A per circuit and 100A per block. This product, from the current ST Blade range by BLUE SEA, is supplied with its insulating cover; fuses are sold separately.

Circuits: 8

4 8

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£49.12 GBP

£49.12 GBP ~~£54.41 GBP~~

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Low stock

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

thanks to our network of approved installers

Find an installer

Support service

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Technical specifications

Fuse type	ATO or ATC
Nominal voltage	32
Amperage	100.0
Plage de calibre de fusible compatible	1A - 30A
Nombre de fusibles	8.0
Mounting type	Surface mount
Taille des goujons	4.8
Taille du filetage des bornes	4.2
Couvercle de protection inclus	Oui
Protection anti-déflagrante	Oui
IP rating	IP66
Flame retardant	Oui
Conformité ABYC	Oui
Contact material	Tinned copper
Dimensions (W x H x D)	146 x 32.5 x 43.8
Weight	0.18
Certifications	CE, ISO 8846, SAE J1171, Directive 2013/53/EU
Bus Height Mm	8.6
Adaptabilité à l'environnement marin	Yes
Max Amperage Per Circuit	30
Entraxe de fixation horizontal	118.7
Taille des vis de montage (métrique)	M4
Product Comparison Note	Compared to the 5045 model in the same range, which offers 4 circuits, the 5046 provides double the capacity for installations requiring more individual protections while maintaining a compact format.
Product type	Fuse block
Nombre de goujons	1
Terminal Height Mm	9.4
Terminal Screw Type	8-32 screw with captive locking washer
Wiring Entry Side	Unilateral

Detailed description

Designed for demanding marine environments, the BLUE SEA compact ST blade fuse block with 8 circuits (reference 5046B-BSS, model 5046) provides a reliable circuit protection solution. This block accepts ATO and ATC fast-acting blade fuses, enabling efficient management of onboard DC electrical systems up to 32V DC. Its compact design, with dimensions of 146 mm (length) x 43.8 mm (width), is optimized for space savings, particularly due to its single-sided entry wiring.

Protection and compliance

BLUE SEA model 5046 features ignition protection, making it safe for use in gasoline engine compartments in compliance with ISO 8846 and SAE J1171 standards. Its insulating cover meets ABYC/USCG insulation requirements. The bus bars and fuse clips are made of tinned copper, ensuring good conductivity and corrosion resistance. Each circuit can handle up to 30A, with a maximum of 100A for the entire block. IP66 sealing provides protection against water spray and dust. This block is certified under the Recreational Craft and Personal Watercraft Directive 2013/53/EU.

Integration and comparison

This fuse block integrates easily into various installations thanks to its #8-32 screw terminals with captive locking washers and its #10-32 threaded stud, accepting ring or fork terminals. Compared to the same range model 5045, which offers 4 circuits, the 5046 provides double the capacity for installations requiring more individual protection while maintaining a compact format. It stands as a robust alternative to less protected fuse blocks, offering increased durability in marine or humid environments.

Expert opinion

Pol CONIN

Digital Manager

« Technical analysis of the BLUE SEA 8-circuit fuse block for marine environments »

The BLUE SEA 8-circuit compact fuse block with ST blade terminals is a relevant solution for secondary electrical distribution aboard pleasure boats and small workboats. Its 'ignition protected' certification (spark-proof) makes it particularly suitable for installations in engine compartments where gasoline vapors may be present, a point often overlooked with standard fuse blocks. This feature, combined with its IP66 rating, provides peace of mind regarding its resilience in marine conditions.

The advantage of the single-sided cable entry design is significant for installations where space is constrained. It simplifies cable routing and allows for a cleaner, more compact integration into electrical panels or consoles. The use of #8-32 screw terminals and a #10-32 stud offers flexible and secure connection options. For installations requiring a moderate number of protected circuits, this model strikes a balance between capacity (8 circuits) and footprint, distinguishing it from higher-capacity blocks or more complex multi-pole systems.

It is important to note that fuses are sold separately, allowing the installer to precisely select the amp ratings suited to each circuit. While designed for robustness, it is essential to adhere to the maximum current specifications per circuit (30A) and per block (100A) to ensure safety and longevity of the installation. This block is ideal for protecting essential equipment such as bilge pumps, navigation lights, sensors, or dashboard instruments.

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Compact ST blade fuse blocks - 8 circuits

£49.12 GBP

£49.12 GBP ~~£54.41 GBP~~

Frequently Asked Questions

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How many protection circuits does this fuse block provide?

This compact fuse block is designed to provide protection for 8 individual circuits.

Which types of fuses are compatible with this fuse block?

This fuse block is compatible with ATO® and ATC® type blade fuses (fast-acting).

What is the maximum operating voltage of this fuse block?

The fuse block can operate with a maximum voltage of 32V DC.

What is the maximum current rating supported by each circuit and by the entire fuse block?

Each individual circuit can support a maximum current of 30A. The entire fuse block has a maximum capacity of 100A.

Is this fuse block watertight and resistant to marine environments?

Yes, this fuse block has an IP66 waterproof rating. This means it is fully protected against dust and powerful water jets, making it ideal for demanding marine environments.

Can I install this fuse block in a gasoline engine compartment?

Yes, this fuse block is ignition-protected and safe for use in gasoline engine compartments. It complies with ISO 8846 and SAE J1171 standards.

How are the cables connected to this fuse block?

The fuse block is designed with single-sided cable entry to optimize space. It uses #8-32 screw terminals with captive locking washers for the circuits and a #10-32 threaded stud for the main power supply. It accepts ring or fork terminals.

What are the dimensions of this compact fuse block?

This fuse block has compact dimensions of 146 mm (length) x 43.8 mm (width).

Are the fuses included with the purchase of this block?

No, fuses are sold separately and are not included with the compact fuse block.

What materials are the fuse blocks and clips made of?

The fuse blocks and clips are made of tinned copper, ensuring excellent conductivity and increased resistance to corrosion in marine environments.

How should the fuse block be mounted?

This fuse block is designed for surface mounting. It accepts #8 (M4) mounting screws and the mounting hole centers are spaced 118.7 mm apart.

Is this product certified for use on recreational craft?

Yes, this fuse block is certified under the Recreational Craft and Personal Watercraft Directive 2013/53/EU and holds a CE Type Examination Certificate.

Is the insulating cover compliant with safety standards?

Yes, the insulating cover of this fuse block meets the insulation requirements set by the ABYC (American Boat and Yacht Council) and the USCG (United States Coast Guard).