BEP Digital Voltage Sensing Relay DVSR 12/24V Battery Isolator

The BEP Digital Voltage Sensing Relay (DVSR) 12/24V is an intelligent battery management device designed to automatically charge multiple battery banks from a single charging source while protecting your engine starting battery from being discharged by onboard accessories. Suitable for both 12V and 24V DC systems, the DVSR automatically detects system voltage and delivers reliable, fully automatic battery isolation and charging for boats, caravans, motorhomes, and commercial vehicles.

Using advanced digital circuitry, the BEP DVSR continuously monitors battery voltage. When the engine is running and charging voltage rises, the relay automatically combines the battery banks, allowing both the start and house batteries to charge from the alternator or battery charger. Once charging stops and voltage falls, the relay automatically isolates the batteries, ensuring onboard appliances cannot discharge the engine starting battery.

Unlike traditional diode battery isolators, the BEP DVSR introduces virtually no voltage drop, allowing batteries to charge more efficiently. The unit also features an ignition/storage mode that reduces power consumption to virtually zero when the vessel is stored, helping preserve battery life during extended periods without use.

Designed for harsh marine environments, the DVSR is ignition protected, compact, easy to install using a simple three-wire connection, and suitable for yachts, launches, trailer boats, RVs, campervans, and commercial marine electrical systems.

Key Features

• Genuine BEP Marine Digital Voltage Sensing Relay
• Automatic 12V and 24V system detection
• Charges two battery banks from one charging source
• Protects starting battery from discharge
• No voltage drop like traditional diode isolators
• Digital voltage sensing technology
• 125A continuous current rating
• 140A intermittent current rating
• Ignition protected
• Ultra-low standby current
• Storage mode with virtually zero power consumption
• Surface or panel mount installation

The DVSR automatically combines battery banks at 13.4V (26.8V) and isolates them at 12.8V (25.6V) while supporting 125A continuous and 140A intermittent current.

Why Buy the BEP DVSR from Barton Marine NZ?

At Barton Marine NZ, we supply genuine BEP Marine electrical products trusted by New Zealand boat owners and marine electricians. The BEP DVSR provides automatic battery charging and isolation without complicated wiring, helping maximise battery life while ensuring your engine always has a fully charged starting battery.

Perfect for:

• Trailer boats
• Cruising yachts
• Launches
• Fishing boats
• House battery systems
• Twin battery installations
• RVs and motorhomes
• Campervans
• Commercial vessels
• Marine electrical upgrades

Technical Specifications

Specifications are based on the BEP Marine DVSR (710-140A).

Common Applications

The BEP Digital Voltage Sensing Relay is commonly used for:

• Dual battery systems
• Marine battery management
• House battery charging
• Engine start battery protection
• Alternator charging systems
• Boat electrical upgrades
• RV battery systems
• Campervan power systems
• Off-grid battery installations
• Commercial marine electrical systems

Performance Benefits

The BEP DVSR provides:

• Automatic battery charging
• Reliable battery isolation
• Protects engine start battery
• No alternator rewiring required
• No voltage loss through diodes
• Very low standby power consumption
• Simple three-wire installation
• Reliable digital battery management

Digital voltage sensing technology provides more accurate switching, lower power consumption, and improved reliability compared with older analogue battery isolators.