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BEP Marine

770-DP

Bipolar battery switch 400 A 48 V

The BEP 770-DP double-pole battery switch is designed for 12-48V marine electrical systems, providing simultaneous isolation of positive and negative terminals with a continuous rating of 400A and IP66/IP67 protection. Essential for preventing galvanic corrosion on metal hulls, it features the EZ-Mount system for simplified front-mounted installation. Product only, no accessories included.

Price excl. import taxesBenefit from the professional rate

£66.96 GBP

£66.96 GBP ~~£83.44 GBP~~

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Prices exclude import taxes. DAP delivery: import taxes are paid on delivery.

Available 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

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Support service

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Technical specifications

Nominal voltage	48
Amperage	400.0
Number of circuits	1.0
Number of poles	2
Supported battery banks	1.0
Battery switch type	Rotary
Battery switch control method	Manual
Circuit protection method	None
CZone compatible	Oui
Mounting type	Surface mount, flush mount
IP rating	IP66
Display type	None
Wired network	None
Certifications	CE, UL1107
Maximum cable lug size	M10
Operating temperature range	-25°C to +55°C
Dimensions (W x H x D)	98 x 98 x 92
Weight	0.544 kg
Compatible Busbar Model	BEP Pro Installer
Continuous current (A)	400A
Control Handle Material	Fiberglass reinforced plastic
Control type	Rotary knob
Cranking current (A)	1500A
Cranking Current Duration	10
Installation cutout diameter (mm)	52
Dimensions (L x W x H)	98 x 98 x 92
Emergency Safety Feature	Yes
Ez Mount System	Yes
Fastener material	Stainless steel
Galvanic Corrosion Protection	Yes
High Power System Suitability	Yes
Housing material	Fiberglass reinforced plastic
Hull Material Compatibility	Metal
Operating humidity range	Up to 95% condensation-free
Ignition Protection Standard	UL1107
Ease of installation	Yes
Interconnection Height Common Feature	Yes
Intermittent current (A)	600A
Intermittent Current Duration	5
Ip Rating Secondary	IP67
Maintenance Safety Feature	Yes
Marine environment suitability	Yes
Max Terminal Stud Torque Nm	11
Maximum DC voltage	48V
Modular Interconnection System	Yes
Mounting method detail	Surface or flush mounting via the EZ-Mount system, allowing front-side wiring.
Net Weight Kg	0.5
Operating Temperature Range C	-25°C to +50°C
Operating voltage range	48
Packaged weight kg	0.65
Panel cutout diameter mm	85 mm
Positions	On/Off
Product use	Bipolar battery switch for isolation and switching of 48V circuits
Product range	Pro Installer
Removable Handle	Yes
Simultaneous Pole Disconnection	Yes
Simultaneous Pole Disconnect Benefit	Prevention of galvanic corrosion and increased safety during maintenance operations or in case of emergency.
Storage Temperature Range C	-40°F to +185°F
Switch type	Manual on/off
Terminal size	M10
Terminal Stud Material	Stainless steel
Terminal Stud Size Metric	M10
Terminal Stud Thread Metric	M10
Terminal type	M10 bolt
Warranty period	5 years
Wiring Access Type	From the bow
Wiring connection type	Bolt

Detailed description

Designed for managing high-demand electrical circuits in marine and mobile environments, the BEP 400A 48V bipolar battery switch provides simultaneous isolation of the positive and negative terminals. This feature is essential for metal-hulled vessels to prevent galvanic corrosion and ensure enhanced safety during maintenance operations or in emergencies. With a continuous rating of 400A, an intermittent peak of 600A for 5 minutes, and a starting capacity of 1500A for 10 seconds, this switch is suited for high-power systems.

Advanced integration and safety

The BEP 770-DP bipolar battery switch integrates the EZ-Mount system for simplified installation, allowing front-side wiring and optimizing access to connections. Its design ensures a shared interconnection height, enabling EZ-Mount switches to align directly with the BEP Pro Installer busbar range, facilitating compact and efficient installations. The product is UL1107 certified for flame resistance and CE marked, ensuring compliance with safety standards.

Robust and versatile design

Constructed from fiber-reinforced plastics and fitted with stainless steel washers/nuts, this battery switch is built to withstand harsh marine environments. Its IP66 and IP67 ratings ensure resistance to powerful water jets and enhanced sealing. The removable knob provides an additional isolation function for maintenance and safety. The BEP 770-DP model stands out from conventional single-pole switches by its ability to fully disconnect the circuit, thereby protecting the entire electrical system.

Expert opinion

Pol CONIN

Digital Manager

« Safety and integration of marine electrical systems with the BEP battery switch »

Choosing a dual-pole battery switch like the BEP 770-DP is strategic for demanding marine installations, particularly on metal-hulled vessels. Unlike single-pole switches that cut only the positive terminal, the dual-pole model isolates both positive and negative terminals simultaneously. This capability is essential to prevent stray currents and galvanic corrosion, a common and costly issue on metal hulls. For shipyards or shipowners concerned with the longevity of their vessel, this represents a significant functional advantage.

From an installation perspective, the ability to wire from the front is a major asset and greatly simplifies the work, especially in confined spaces. Integration with BEP’s Pro Installer busbar range allows for compact and modular electrical panels, optimizing space and reducing assembly time. This type of battery switch is suited for power systems where reliability and safety are absolute priorities, such as workboats, large cruising sailboats, or mobile industrial applications. It is particularly relevant for 12V, 24V, or 48V systems requiring a clean and secure high-current cutoff.

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Bipolar battery switch 400 A 48 V

£66.96 GBP

£66.96 GBP ~~£83.44 GBP~~

Frequently Asked Questions

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What is a bipolar battery isolator and why is it important for boats?

A bipolar battery switch disconnects both the positive and negative terminals of the battery simultaneously. This feature is critical for metal-hulled vessels, as it helps prevent galvanic corrosion. It also provides enhanced safety during maintenance operations or in emergencies by completely cutting off power to the system.

What is the DC current capacity of this BEP 770-DP battery switch?

This BEP 770-DP battery switch is designed to handle a continuous current of 400 amperes.

What are the intermittent current and starting capabilities of this model?

The BEP 770-DP battery switch can handle a 600 amp intermittent surge for 5 minutes and a 1500 amp cranking capacity for 10 seconds.

Which materials are used to manufacture this battery switch to ensure its robustness in a marine environment?

This battery switch is made from fiberglass-reinforced plastics and features stainless steel washers and nuts, making it resistant to harsh marine environments.

Is this battery switch waterproof and dustproof?

Yes, this battery switch has an IP66 and IP67 protection rating. This means it is resistant to powerful water jets and provides enhanced sealing, protecting it against temporary immersion and dust.

What safety certifications does the BEP 770-DP battery switch have?

The BEP 770-DP battery switch is UL1107 certified for flame protection and CE marked, ensuring compliance with European safety standards.

Is the control button of the battery switch removable?

Yes, the control button of this battery switch is removable. This feature provides additional isolation for maintenance and safety.

How does the EZ-Mount system simplify the installation of this battery switch?

The EZ-Mount system allows front-side wiring, optimizing access to connections and simplifying the installation process.

Can this battery switch be integrated with other BEP equipment?

Yes, its design ensures a shared interconnection height, allowing EZ-Mount switches to align directly with BEP’s Pro Installer busbar range, enabling compact and efficient installations.

Is the wiring accessible from the front during installation?

Yes, the EZ-Mount system is designed to allow front-side wiring, which greatly simplifies access to the connections.

Is a significant space required behind the panel for installation?

Thanks to the EZ-Mount system and front-wiring, installation is optimized for tight spaces, reducing the need for a large clearance behind the panel.

Is this battery switch suitable for metal-hulled vessels?

Yes, it is particularly suited to metal-hulled vessels thanks to its bipolar function that helps prevent galvanic corrosion.

Can this battery switch be used in non-marine applications?

Yes, although designed for marine environments, its robustness and waterproofing characteristics also make it suitable for other demanding mobile applications.

Is the battery switch compatible with BEP Pro Installer busbars?

Yes, its design allows direct interconnection with BEP's Pro Installer busbar range, enabling integrated and compact installations.

What is the warranty duration for this BEP battery switch?

The warranty period for this battery switch is in accordance with BEP’s general sales conditions. For precise details, please refer to BEP’s official warranty policy.

Does the warranty cover water damage or corrosion?

IP66/IP67 protection and corrosion-resistant materials are designed to extend product lifespan. Specific coverage conditions for water-related or corrosion damage are detailed in the manufacturer BEP’s warranty policy.

Is the product shipped with all accessories required for installation?

The battery switch is supplied as-is. Specific installation accessories such as cables or tools may need to be purchased separately, depending on your setup.

What is the country of origin of this BEP battery switch?

The country of origin for this BEP battery switch is New Zealand.

What is the maximum voltage this battery switch can handle?

The BEP 770-DP bipolar battery switch is specifically designed for 48V electrical systems. It is suitable for managing demanding circuits in marine and mobile environments at this voltage.

Why is it important for this battery switch to be double-pole?

A dual-pole battery switch like the BEP 770-DP is critical because it allows simultaneous isolation of the positive and negative terminals of a circuit. This feature is especially important for metal-hulled vessels, where it helps prevent galvanic corrosion. Additionally, it provides enhanced safety by completely cutting electrical power during maintenance operations or in emergencies.