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

Save 21%

BEP Marine

701-MDVS

Motorized voltage-sensitive battery switch (VSS) 701-MDVS

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

185,34€

185,34€ ~~233,30€~~

Shipping calculated at checkout.

Prices shown excluding VAT for United Arab Emirates. If your delivery address is in the European Union, the VAT of the destination country will be added at checkout.

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

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

Nominal voltage	12/24 V
Amperage	275.0
Number of circuits	1.0
Number of poles	1 pole
Supported battery banks	2.0
Battery switch type	Powered
Battery switch control method	Remote
Circuit protection method	Protection against deep discharges, Spark-proof
Integrated VSR	Oui
DVSR continuous current rating	275.0
Mounting type	Flush-mounted or surface-mounted
Ingress protection	IPX6
Display type	LED
Certifications	UL 1107, ABYC/CE
Maximum cable lug size	10 mm
Operating temperature range	-20 to +60 °C
Auto Operating Voltage Range	8 to 30.5
Coil current (mA)	15
Coil voltage	12 V
Continuous current (A)	275
Control type	Automatic (voltage detection), Manual (remote)
Cranking current (A)	1250
Discharge cut-off voltage	12.2
Emergency Parallel Flash Pattern	Long Flash: 5 Secs ON & 0.5 Secs OFF
Emergency parallel function	Yes
Housing material	Fiberglass reinforced plastics
Intermittent current (A)	455
Max charge current (A)	275.0
Max discharge current (A)	275.0
Maximum DC voltage	32
Model name	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")
Terminal type	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
Wiring connection type	Wago connector, Deutsch connector

Detailed description

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

Automated management and emergency coupling

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

Installation and reliability in marine environments

Certified IPX6 and spark-proof (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). Power consumption remains extremely low, with only 15 mA drawn in the off position.

Documentation

Type	Nom
	EN - Instructions d'utilisation et d'installation - BAT SW MDVS 12V 275A CONT MC6
	EN - Gabarit de montage et dimensions - BAT SW MDVS 12V 275A CONT MC6
	EN - Schéma de câblage - BAT SW MDVS 12V 275A CONT MC6
	EN - Instructions d'installation et d'utilisation - BAT SW MDVS 12V 275A CONT MC6
	EN - Notice d'utilisation - BAT SW MDVS 12V 275A CONT MC6
	EN - Instructions d'utilisation et d'installation - 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 represents a top choice for marine electrical architectures requiring both intelligent automation and mechanical redundancy. Its real strength lies in its hybrid design: it functions as a voltage-sensitive relay (VSS) to protect the starter battery by automatically cutting 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 Deutsch DTM06-3S and Wago industrial connectors enhances and simplifies 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 disable the vessel's power distribution. This is a critical, highly reliable component, IPX6 and Ignition Protected certified, ideal for securing modern battery banks.

Durabilité

Facilité d'installation

Rapport performance / prix

Payment and security

Your payment information and data are processed securely.

Motorized voltage-sensitive battery switch (VSS) 701-MDVS

185,34€

185,34€ ~~233,30€~~

Frequently Asked Questions

Need help? Contact us

What is the 701-MDVS BEP motorized battery switch?

The 701-MDVS from BEP is a motorized battery switch sensitive to voltage (VSS), designed to automate the management of battery banks aboard vessels. It combines the features of a charge 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 state of charge and protecting them against deep discharges. 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 amps, an intermittent current of 455 amps DC, and a peak starting current of up to 1250 amps DC.

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

In automatic mode, the system continuously monitors battery voltage. If the 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 coupling 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 work?

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

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

What is the power consumption of the 701-MDVS in standby mode?

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 rated for water resistance and is ignition-protected per UL 1107 and ABYC/CE standards, making it fully suitable for marine environments.

Which materials are used for the bolts 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 resistance to corrosion 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 mechanical installation of the 701-MDVS is flexible, allowing surface-mount or flush-mount installation depending on the requirements of your dashboard or battery compartment.

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 the stud nuts?

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

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

It is imperative that the negative (black) wire of the 701-MDVS be connected to the same battery that it is isolating. Only one negative connection must be provided to each unit for correct operation and to avoid erratic behavior.

Can the 701-MDVS be controlled remotely?

Yes, the 701-MDVS can be remotely controlled via a compatible remote switch, offering installation flexibility and ease of use.

How to remotely turn on or off the battery switch?

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