BEP Pro Installer 5 Stud Bus Bar - 650A [777-BB5S-650]

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BEP Marine

777-BB5S-650

HD 5-way busbar 650 A

The BEP HD 5-post 650A bus bar is a robust and high-performance solution for marine electrical distribution. Designed for 50V DC systems, it handles a nominal current of 650A and features 10mm tinned copper studs. It is supplied with a transparent polycarbonate protective cover.

Retail priceBenefit from the professional rate

£70.32 GBP

£70.32 GBP ~~£101.13 GBP~~

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In 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

Nominal voltage	50 V
Amperage	650.0
Nombre de circuits	5.0
Nombre de pôles	Monopolar
Méthode de protection des circuits	None
Mounting type	Surface mounting
Display type	None
Wired network	None
Certifications	CE, ISO 9001
Taille maximale de cosse de câble	10 mm
Dimensions (W x H x D)	147 x 49 x 64 mm
Weight	0.506
Conformité ABYC	Oui
Code-barres du produit	50843687006690
Type d'application du busbar	Marine
Matériau de la base de la barre omnibus	High-temperature fiberglass reinforced plastic
Matériau conducteur de la barre omnibus	Tinned copper CDA102
Type de barre omnibus	High power
Color	Transparent
Couvercle de protection inclus	Oui
Matériau du couvercle	Polycarbonate
Flame retardant	Oui
Type de conception de la barre de liaison	Straight tiller
Longueur totale de la barre de liaison	147.0
Nom du fabricant	BEP
Manufacturer part number	777-BB5S-650
Section de câble maximale par goujon	120.0
Nut Material	Stainless steel
Nom de la série de produits	Pro Installer HD
Product type	Busbar
Couple de serrage recommandé des bornes	18.0
Nombre de goujons	5.0
Stud Material	Stainless steel
Taille des goujons	10 mm
Nombre de bornes	5.0
Taille du filetage des bornes	10 mm

Detailed description

The BEP HD 5-stud busbar 650A (part number 777-BB5S-650) is a robust and reliable electrical distribution solution for demanding marine systems. Designed to handle nominal currents up to 650 amperes at 50 VDC, this busbar is ideal for installations requiring dense and secure connectivity. Its five 10 mm (3/8") stainless steel studs, paired with tinned CDA102 copper conductors, ensure optimal conductivity and enhanced corrosion resistance in marine environments. Compact dimensions of 147 x 49 x 64 mm and a weight of 506 g simplify installation in constrained spaces.

Technical performance and durability

The BUSBAR HD 5 STUD 650A MC5 features a high-temperature fiber-reinforced plastic base, delivering superior mechanical strength and excellent resistance to chemical agents. The transparent polycarbonate cover provides effective protection against splashes and accidental contact while allowing quick visual inspection of connections. Unlike standard low-ampacity busbars, this HD version is specifically designed for high-power applications where reliability and safety are critical. It outperforms BEP’s Z-Bar range (such as 10 or 18-way 200A models) in current capacity, making it an essential component for main power systems or high-current circuits aboard.

Integration and positioning within the BEP range

Within the BEP Pro Installer range, this 5-stud 650A busbar offers a versatile option balancing connection count and current capacity. It sits between the 3-stud 650A (98 x 49 x 61 mm, 294g) and 8-stud 650A (249 x 49 x 64 mm, 841g) models, sharing the same 650A capacity and 10 mm stud size but providing an intermediate mounting configuration. For applications requiring slightly lower amperage, BEP also offers 4-stud 500A busbars with 8 mm studs. This flexibility enables installers to select the busbar best suited to their electrical system’s specific needs, whether for distributing battery bank power, connecting multiple high-current consumers, or centralizing grounds.

Documentation

Type	Nom
	EN - Detailed technical sheet - BUSBAR HD 5 STUD 650A MC5
	EN - Detailed technical datasheet - BUSBAR HD 5 STUD 650A MC5
	EN - Installation Guide - BUSBAR HD 5 STUD 650A MC5
	EN - Installation Instructions - BUSBAR HD 5 STUD 650A MC5

Expert opinion

Pol CONIN

Digital Manager

« BEP HD 5-stud 650A busbar: high-performance electrical distribution »

The BEP BUSBAR HD 5 studs 650A is a fundamental component for any high-power marine electrical installation. Its 650A rated capacity at 50V DC makes it essential for embedded systems with high consumption, whether for large battery banks or circuits dedicated to power-hungry equipment. The material quality is notable: a high-temperature fiberglass-reinforced plastic base ensures structural rigidity and crucial chemical resistance in a marine environment, while the tinned CDA102 copper conductors and 10mm stainless steel studs guarantee electrical integrity and corrosion resistance. The transparent polycarbonate cover is a major safety asset, preventing accidental contact and facilitating visual inspection of connections. This 5-stud model offers an excellent balance between compactness and connection capacity, making it ideally suited for centralizing power feeds or ground returns in complex installations where lower-capacity busbars would be undersized or require multiple, less clean connections.

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HD 5-way busbar 650 A

£70.32 GBP

£70.32 GBP ~~£101.13 GBP~~

Frequently Asked Questions

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What are the exact dimensions of this 5-stud busbar?

The dimensions of the BEP HD 5-stud 650A busbar (reference 777-BB5S-650) are 147 mm in length, 49 mm in width, and 64 mm in height.

What is the maximum voltage supported by this busbar?

This busbar is rated for a maximum nominal voltage of 50 VDC (direct current).

What is the nominal current rating of this 5-stud busbar?

The nominal current rating of this specific busbar (5 studs) is 650 amperes.

What materials are used for the busbar base?

The busbar base is made of high-temperature fiber-reinforced plastic. This material provides excellent strength and good chemical resistance.

What material is the busbar protection cover made of?

The busbar protection cover on this unit is made of transparent polycarbonate.

How many connection studs are present on this bus bar?

This bus bar is equipped with 5 connection studs.

What is the size of the connection studs on this busbar?

The connection studs are 10 mm (3/8") in size.

Which types of corrosion sprays are safe to use on polycarbonate covers?

Only use corrosion inhibitors labeled 'safe for plastics'.

Which chemicals should be avoided on the polycarbonate cover?

Do not wipe polycarbonate transparent covers with solvents or petrochemical products. These substances can damage the plastic, leading to deterioration of its properties such as opacity and brittleness.

Is this busbar suitable for 12 V or 24 V electrical systems?

Yes, this busbar is fully compatible with 12 V and 24 V systems, as its maximum rated voltage is 50 VDC.

Can I connect cables with different cross-sections to 10mm studs?

Yes, you can connect cables with different cross-sections, provided they are fitted with terminals or connectors suitable for 10mm (3/8") studs.

Is this product considered "Heavy-Duty" (heavy-duty use)?

Yes, the product designation includes « HD » for « Heavy-Duty », indicating it is designed for intensive and professional use.

Is the busbar supplied with a protective cover?

Yes, this busbar is supplied with a transparent polycarbonate cover.

Is this busbar manufactured by the BEP brand?

Yes, this busbar is a BEP product.

Is the busbar base resistant to high temperatures?

Yes, the base is made of high-temperature fiber-reinforced plastic, giving it good resistance to high temperatures.

Can this busbar be used in an environment where it may be exposed to moisture or corrosion?

Yes, this busbar is designed with materials suitable for harsh environments. Its base is made of high-temperature fiberglass-reinforced plastic and its studs are made of stainless steel, which contributes to its corrosion resistance.