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BEP Marine

701-MDVS

Motorized battery switch 701-MDVS BEP

The 12V motorized battery switch sensitive to voltage BEP (275A continuous, 1250A cranking) automates the protection of your battery banks with its integrated VSS relay and emergency coupling function. The motorized evolution of the renowned 701 mechanical series, it ensures reliable isolation with IPX6 certification and 10 mm tinned copper studs.

Includes: 701-MDVS motorized battery switch, removable access panels.

Retail priceBenefit from the professional rate

£156.68 GBP

£156.68 GBP ~~£206.23 GBP~~

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Free pickup point from €150 in France
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Custom installation

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Installers near you

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Technical specifications

Nominal voltage	12/24 V
Amperage	275.0
Nombre de circuits	1.0
Nombre de pôles	1 pole
Parcs de batteries supportés	2.0
Type d'interrupteur de batterie	Powered
Méthode de contrôle de l'interrupteur de batterie	Remote
Méthode de protection des circuits	Protection against deep discharges, Spark-proof
VSR intégré	Oui
Courant continu nominal du DVSR	275.0
Mounting type	Flush-mounted or surface-mounted
IP rating	IPX6
Display type	LED
Certifications	UL 1107, ABYC/CE
Taille maximale de cosse de câble	10 mm
Operating temperature range	-20 to +60 °C
Auto Operating Voltage Range	8 to 30.5
Courant de bobine (mA)	15
Tension de la bobine	12 V
Courant continu (A)	275
Type de contrôle	Automatic (voltage detection), Manual (remote)
Courant de démarrage (A)	1250
Discharge cut-off voltage	12.2
Emergency Parallel Flash Pattern	Long Flash: 5 Secs ON & 0.5 Secs OFF
Mise en parallèle d'urgence	Yes
Housing material	Fiberglass reinforced plastics
Courant intermittent (A)	455
Max charge current (A)	275.0
Max discharge current (A)	275.0
Maximale tension dc	32
Nom du modèle	701-MDVS
Nut Material	Stainless steel
Operating voltage range	8 to 15 V
Operating Voltage Range 24v	15 to 30
Peak discharge current	455.0
Positions	Auto, Manual On/Off, Emergency Coupling
Product use	Automated battery bank management on board vessels
Recommended continuous discharge current	275.0
Storage temperature range	-40 to +80 °C
Switch type	Motorized voltage-sensitive battery switch (VSS) with emergency coupling
Terminal size	2 x 10 mm (3/8")
Type de borne	Tinned copper studs
Vss Disengage Delay Engine	5
Vss Disengage Delay Non Engine	3
Vss Disengage Voltage Engine Source	12.2
Vss Disengage Voltage Other Sources	13.0
Type de connexion câblage	Wago connector, Deutsch connector

Detailed description

The BEP 701-MDVS motorized battery switch with voltage-sensitive operation is designed to automate battery bank management on board vessels. Operating at 12V, it combines the features of a voltage-sensitive relay (VSS) and an emergency parallel switch. Capable of handling continuous current up to 275A and up to 1250A peak during startup, this module ensures high-power electrical distribution while protecting batteries from deep discharge through its automatic cutoff algorithms.

Automated management and emergency coupling

Unlike the standard manual model 701 in the same range, the 701-MDVS integrates motorization and advanced voltage detection. In automatic mode, it continuously monitors charge state: if voltage drops below 12.2V for more than 5 minutes, the system disengages to preserve the integrity of the starter battery. It also features an exclusive emergency parallel function (Emergency Parallel) allowing manual or remote coupling of battery banks in case of failure. An integrated LED indicator provides real-time system status via different light codes (rapid flashing for voltage errors outside the 8-15V range, long flashing for parallel mode).

Installation and reliability in marine environments

Certified IPX6 and ignition-protected (UL 1107 and ABYC/CE standards), this battery switch is built to withstand the harshest marine environments (operating from -20°C to +60°C). Its 10 mm (3/8") tinned copper studs and stainless steel nuts ensure optimal conductivity and corrosion resistance. Mechanical installation is flexible with surface or flush mounting options, and removable side panels facilitate power cable routing up to 50 mm² (or 70 mm² with a tension reducer). Power consumption remains extremely low, with only 15 mA drawn in the off position.

Documentation

Type	Nom
	EN - Installation and Use Instructions - BAT SW MDVS 12V 275A CONT MC6
	EN - Mounting template and dimensions - BAT SW MDVS 12V 275A CONT MC6
	EN - Wiring diagram - BAT SW MDVS 12V 275A CONT MC6
	EN - Installation and Use Instructions - BAT SW MDVS 12V 275A CONT MC6
	EN - User Manual - BAT SW MDVS 12V 275A CONT MC6
	EN - User and Installation Instructions - BAT SW MDVS 12V 275A CONT MC6

Expert opinion

Pol CONIN

Digital Manager

« Secure automation and physical redundancy for battery bank management »

The BEP 701-MDVS motorized battery switch is a top choice for marine electrical systems requiring both intelligent automation and mechanical redundancy. Its true strength lies in its hybrid design: it functions as a voltage-sensitive switch (VSS) to protect the starter battery by autonomously disconnecting the circuit below 12.2V, while providing an essential emergency coupling function to compensate for a failed engine battery. In terms of system integration, its compatibility with industrial Deutsch DTM06-3S and Wago connectors streamlines and secures the control circuit wiring. In terms of power handling, its 10 mm tinned copper studs reliably handle massive starting currents up to 1250A. The ability to force switching via a physical manual override ensures that any electronic failure will never paralyze the vessel's power distribution. This is a critical, highly reliable component, certified IPX6 and Ignition Protected, ideal for securing modern battery banks.

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Motorized battery switch 701-MDVS BEP

£156.68 GBP

£156.68 GBP ~~£206.23 GBP~~

Frequently Asked Questions

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What is the 701-MDVS BEP motorized battery switch?

The BEP 701-MDVS is a voltage-sensitive motorized battery switch (VSS), designed to automate battery bank management on board vessels. It combines the features of a charging relay and an emergency parallel switch.

What is the primary function of the 701-MDVS battery switch?

Its primary function is to automate battery bank management by monitoring their charge state and protecting them against deep discharge. It also provides an emergency coupling function to link battery banks if necessary.

What is the nominal operating voltage of the 701-MDVS?

The 701-MDVS is specifically designed to operate with 12V DC battery systems. Its operating voltage range is 8 to 15V DC.

What are the current ratings of the 701-MDVS?

The 701-MDVS can handle a continuous DC current of 275 amperes DC, an intermittent current of 455 amperes DC, and a peak starting current up to 1250 amperes DC.

How does the 701-MDVS protect batteries against deep discharges?

In automatic mode, the system continuously monitors battery voltage. If voltage drops below 12.2V for more than 5 minutes, the system automatically disengages to preserve the integrity of the starter battery.

What is the Emergency Parallel function?

The Emergency Parallel function allows manual or remote linking of battery banks in case of failure, ensuring a backup power source for starting or other critical needs.

How does the LED indicator on the 701-MDVS function?

The integrated LED indicator provides real-time system status updates via different light codes:

A rapid flashing pattern (0.1 sec ON / 0.1 sec OFF) indicates voltage out of specification (below 8V or above 15V). A long flashing pattern (5 sec ON / 0.5 sec OFF) indicates the parallel emergency mode is engaged. A medium flashing pattern (1 sec ON / 1 sec OFF) indicates the VSS is in low-voltage disconnect mode (voltage below 12.2V/24.4V). A solid LED indicates the VSS is engaged. An unlit LED indicates the VSS is disengaged.

What is the electrical consumption of the 701-MDVS in the off position?

The power consumption of the 701-MDVS battery switch is extremely low, drawing only 15 mA when the switch is in the off position.

What are the protection certifications for the 701-MDVS?

The battery switch is IPX6 certified for water resistance and is protected against ignition per UL 1107 and ABYC/CE standards, making it perfectly suited for marine environments.

Which materials are used for the studs and nuts of the 701-MDVS?

The 10 mm (3/8") studs are made of tinned copper and the nuts are made of stainless steel. These materials ensure optimal conductivity and excellent corrosion resistance in a marine environment.

What is the operating temperature range of the 701-MDVS?

The 701-MDVS is designed to operate reliably in demanding marine environments, with an operating temperature range from -20°C to +60°C (-4°F to 140°F).

Is the 701-MDVS waterproof?

Yes, the 701-MDVS is IPX6 certified, meaning it is protected against powerful water jets and can withstand the harshest marine environments.

What are the mounting options available for the 701-MDVS?

The 701-MDVS mechanical installation is flexible, allowing surface-mount or flush-mount installation depending on your dashboard or battery compartment requirements.

What is the size of the connection studs on the battery switch?

The 701-MDVS is equipped with two 10 mm (3/8") tinned copper studs for power connections, ensuring a robust and reliable connection.

What is the maximum recommended cable size for the 701-MDVS?

The maximum recommended cable size is 50 mm² (1/0). If using a cable larger than 50 mm², it must be strain-relieved, with an absolute maximum of 70 mm² (2/0).

What is the recommended torque for stud nut tightening?

The recommended torque for stud nuts is 8 Nm (5.9 lbf) to ensure a secure and optimal electrical connection.

How should the negative wire (black) of the 701-MDVS be connected?

The negative wire (black) of the 701-MDVS must be connected to the same battery it is isolating. Each unit must have only one negative connection for correct operation and to prevent erratic behavior.

Can the 701-MDVS be remotely controlled?

Yes, the 701-MDVS can be remotely controlled via a compatible remote switch, providing installation flexibility and operational convenience.

How to turn the battery switch on or off remotely?

To turn the battery switch on remotely, momentarily press the remote switch until power activates or the LED indicator lights up. To turn it off, hold the remote switch pressed for more than 2 seconds.