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

Opt for additional installation assistance

En cours de réapproSave 21%

BEP Marine

770-DP-EZ

Bipolar battery switch EZ 400 A

The BEP EZ 400A bipolar battery switch is a marine electrical safety solution designed for 12-48V DC systems, providing simultaneous disconnection of the positive and negative poles with a continuous 400A capacity. Robust and IP66 certified, it is ideal for demanding marine environments. This product includes the battery switch and its EZ mounting system for easy flush-mount installation.

Price excl. import taxesBenefit from the professional rate

$100.00 USD

$100.00 USD ~~$126.00 USD~~

Shipping calculated at checkout.

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

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

Opt for additional installation assistance

Technical specifications

Nominal voltage	12V-48V
Amperage	400.0
Number of circuits	1.0
Number of poles	Bipolar
Supported battery banks	1.0
Battery switch type	Manual
Battery switch control method	Manual
Circuit breaker type	Bipolar
Circuit protection method	Manual isolation
Mounting type	Flush-mounted
IP rating	IP66
Wired network	None
Certifications	CE, UL1107
Maximum cable lug size	10
Dimensions (W x H x D)	102 x 102 x 95
Continuous current (A)	400
Control type	Manual (rotary knob)
Cranking current (A)	1500
Cranking Current Duration	10 seconds
Ignition protection	Ignition protected
Intermittent current (A)	600
Intermittent Current Duration	5 minutes
Max discharge current (A)	400.0
Maximum DC voltage	48
Model name	770-DP-EZ
Mounting Fastener Size Imperial	10g, 3/16"
Fastener size (metric)	M5
Operating voltage range	12-48
Panel cutout diameter mm	92
Positions	ON/OFF
Product use	Isolation of marine electrical circuits, emergency shutdown, and safe maintenance by simultaneously isolating the positive and negative battery poles.
Recommended continuous discharge current	400.0
Switch type	Bipolar battery switch
Terminal size	M10 (3/8")
Terminal Torque Nm	13.5
Terminal type	Dowel
Torque Lbf	10
Warranty	5.0
Wiring connection type	M10 studs

Detailed description

The BEP EZ 400A bipolar battery switch is a robust and reliable solution for managing marine electrical circuits. Designed for 12 to 48V DC systems, it provides a continuous current capacity of 400A, with an intermittent capacity of 600A for 5 minutes and a starting current of 1500A for 10 seconds. Its bipolar design simultaneously isolates both positive and negative poles, offering enhanced safety compared to commonly used unipolar battery switches in similar applications. This model is an essential component for installations requiring emergency shutdown or secure maintenance.

Robust design and marine certifications

This battery switch is designed for demanding marine environments. Its IP66 protection rating ensures resistance to powerful water jets and dust. It is also "ignition protected," meaning it is designed to prevent the ignition of fuel vapors, a major safety advantage aboard. CE and UL1107 certifications attest to its compliance with international safety and performance standards. The M10 (3/8") connection studs are sized for heavy-gauge cables and require a tightening torque of 13.5 Nm (10 lbf) to ensure an optimal electrical connection resistant to vibrations.

Ease of installation and durability

The EZ mounting system simplifies the integration of the battery switch into various electrical panels or bulkheads. A 92 mm (3 5/8") drilling diameter is required for its flush installation, with M5, 10g or 3/16" fasteners. The unique mounting system allows for clean flush mounting by removing the front clips, providing a neat finish. BEP, a brand known for the quality of its electrical solutions, backs this product with a 5-year warranty, underscoring its confidence in the durability and reliability of this critical safety and energy management equipment aboard. This battery switch is a strategic choice for professionals and demanding recreational boaters.

Documentation

Type	Nom
	EN - Fiche technique - Coupe batterie bipolaire EZ 400A continu On/Off 48V
	EN - Gabarit de montage - Coupe batterie bipolaire EZ 400A continu On/Off 48V
	EN - Fiche technique détaillée - Coupe batterie bipolaire EZ 400A continu On/Off 48V
	EN - Guide d'installation et fiche technique - Coupe batterie bipolaire EZ 400A continu On/Off 48V
	EN - Guide d'installation et fiche technique - Coupe batterie bipolaire EZ 400A continu On/Off 48V
	EN - Guide d'installation et fiche technique - Coupe batterie bipolaire EZ 400A continu On/Off 48V
	EN - Fiche technique et notice d'installation - Coupe batterie bipolaire EZ 400A continu On/Off 48V

Expert opinion

Pol CONIN

Digital Manager

« Power management and enhanced safety: the efficiency of the BEP EZ 400A bipolar »

The BEP EZ 400A bipolar battery switch represents a top-tier power cutoff solution for demanding marine systems. Its ability to handle 400A continuously and 1500A peaks during startup, across a 12 to 48V DC voltage range, makes it suitable for a wide range of applications, from small sailboats to larger motorized units. The key advantage of this model lies in its bipolar function, ensuring complete system isolation by cutting both positive and negative simultaneously, which is critical for safety in complex installations and maintenance.

The robustness of the EZ 400A is confirmed by its IP66 rating, providing protection against water jets, and its "ignition protected" certification essential in engine compartments where fuel vapors may be present. The M10 connection studs, with a recommended tightening torque of 13.5 Nm, ensure maximum conductivity and mechanical resistance to boat vibrations. The EZ mounting system simplifies professional integration with a standardized 92 mm drilling pattern. Its 5-year warranty confirms the reliability expected from a BEP component, offering peace of mind to installers and end users.

Durabilité

Facilité d'installation

Rapport performance / prix

Payment and security

Your payment information and data are processed securely.

Bipolar battery switch EZ 400 A

$100.00 USD

$100.00 USD ~~$126.00 USD~~

Frequently Asked Questions

Need help? Contact us

What is a bipolar battery switch and why is it important?

A bipolar battery switch, such as the EZ 400A model, can isolate both the positive and negative poles of a circuit simultaneously. This feature provides enhanced safety compared to unipolar battery switches, as it ensures a complete power cut, minimizing the risks of short circuits or leakage currents—particularly critical in marine environments.

What is the DC current capacity of this battery switch?

This EZ 400A dual battery switch is designed to handle a continuous current of 400 amperes. This capacity makes it suitable for demanding applications in marine electrical systems.

What is its intermittent current and starting capacity?

The EZ 400A battery switch can handle an intermittent current of 600 amperes for 5 minutes. For engine starts, it has a cranking current capacity of 1500 amperes over 10 seconds, which is sufficient for most marine engines.

What is the supported voltage range for this battery switch?

This battery switch is compatible with 12V to 48V DC electrical systems (direct current).

Is this battery switch watertight? What is its IP rating?

Yes, this battery switch is designed to withstand marine environments. It has an IP66 protection rating, meaning it is protected against powerful water jets and dust.

What does the "ignition protected" rating mean for this product?

The "ignition protected" marking means the battery switch is designed to prevent the ignition of fuel vapors or other flammable gases present in the environment. This is a critical safety feature for marine applications, where fire risks related to fuels are present.

What are the safety certifications of this battery switch?

This battery switch is CE certified and has been independently tested to meet UL1107 standards. These certifications ensure compliance with international safety and performance standards.

Can this battery switch be used to cut power to a single device or the entire system?

The EZ 400A battery isolator is primarily designed to handle emergency shutdown or secure maintenance of the entire boat's electrical system by isolating the batteries from the rest of the circuit. It functions as a main switch for the battery.

What is the role of a battery switch (isolator) in a marine electrical system?

The primary role of a battery switch is to completely isolate the batteries from the boat's electrical system. This is critical for safety during maintenance, to prevent battery discharge when the boat is not in use, and as an emergency measure in case of electrical issues.

Is this battery switch suitable for marine environments?

Yes, absolutely. Its robust design, IP66 water and dust protection rating, and "ignition protected" feature make it perfectly suited and safe for use in demanding marine environments.

How does the On/Off mechanism of this battery switch work?

The battery switch is equipped with a simple "On/Off" mechanism that allows manual activation or deactivation of the connection between the batteries and the boat's electrical system. Simply turn the knob to switch between the two states.

How to ensure a secure electrical connection during installation?

To ensure a secure electrical connection, it is essential to verify that all cables are correctly sized for the loads they carry. Additionally, all electrical connections must be properly tightened to the specified torque of 13.5 Nm (10 lbf) to prevent damage to the battery switch or the system.

Is this battery isolator compatible with 12V, 24V and 48V systems?

Yes, this bipolar battery switch is designed to work with a wide range of voltages and is compatible with 12V, 24V and 48V DC electrical systems.

Is this battery switch suitable for lithium batteries?

Yes, since it supports a voltage range from 12V to 48V DC and handles high currents, this battery switch is suitable for use with lithium battery systems, as well as other types of marine batteries.

Can this battery switch be used with other marine electrical equipment brands?

Yes, the BEP EZ 400A battery switch is a standard power management component. It is designed to integrate into most marine electrical systems and is compatible with equipment from other brands, provided voltage and current specifications are met.