Battery coupler 720-MDVSO BEP
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Technical specifications
Technical specifications
| Nominal voltage | 12/24 V |
| Amperage | 500.0 |
| Number of circuits | 1.0 |
| Number of poles | 2 poles |
| Supported battery banks | 2.0 |
| Battery switch type | Voltage-sensing electronics |
| Battery switch control method | Automatic and manual |
| Circuit protection method | Ignition protected (UL 1107) |
| Integrated VSR | Oui |
| DVSR continuous current rating | 500.0 |
| Mounting type | Flush or surface-mounted |
| IP rating | IP65 |
| Display type | LED |
| Certifications | UL 1107, Ignition-protected |
| Maximum cable lug size | 12 mm |
| Dimensions (W x H x D) | 102 x 102 x 109 mm |
| Automatic voltage detection | Automatic (12V/24V) |
| Bulk/absorption charge voltage | 13.3 |
| Continuous current (A) | 500 A |
| Control type | Automatic (voltage-sensitive) and manual (local/remote) |
| Cranking current (A) | 2500 A |
| Cut In Delay Seconds | 5 |
| Cut In Voltage 12v | 13.3 |
| Cut In Voltage 24v | 26.6 |
| Cut Out Voltage 12v | 12.7 |
| Digital Circuitry | Yes |
| Discharge cut-off voltage | 12.7 |
| Housing material | High-temperature fiberglass reinforced plastic |
| Intermittent current (A) | 700 A |
| Lowered Cut In Voltage Benefit | Suitable for low-efficiency alternators and high-temperature environments |
| Max charge current (A) | 500.0 |
| Max discharge current (A) | 500.0 |
| Maximum DC voltage | 32 V |
| Model name | 720-MDVSO |
| Operating voltage range | 8 to 30.5 V |
| Optical Position Sense | Yes |
| Peak discharge current | 2500.0 |
| Positions | Auto, Manual (On/Off), Emergency Parallel |
| Product use | Automatic management and coupling/decoupling of battery banks, with emergency parallel function. |
| Recommended continuous discharge current | 500.0 |
| Replaces Models | 720-MDVS, 720-MDVS-24V |
| Switch type | Voltage Sensitive Switch (VSS) with dual operation |
| Terminal size | 2 x 12 mm (1/2") |
| Terminal type | Fasteners (2 x 12mm) |
| Wiring connection type | 3-wire cable with Wago plug (for control), studs (for power) |
Detailed description
Detailed description
The 720-MDVSO battery separator coupler from BEP represents a major evolution in onboard energy management. Designed to replace the older 720-MDVS and 720-MDVS-24V models, this voltage-sensitive switch (VSS) now features automatic 12/24V dual-voltage detection, eliminating the need for manual configuration. Its design is based on advanced digital circuitry combined with an optical position sensor, ensuring increased precision and efficiency during battery bank coupling and decoupling cycles.
Electrical performance and optimized thresholds
This module supports extreme loads with a continuous capacity of 500A, 700A intermittently, and up to 2500A at startup. Unlike the previous generation, the 720-MDVSO lowers its activation voltage to 13.3V (26.6V for 24V systems) after a 5-second delay, making it perfectly suited for low-efficiency alternators and high-temperature environments. The cutoff voltage is set at 12.7V (25.4V) with a 20-second delay to prevent oscillations. Additionally, standby power consumption has been drastically reduced by 70%, dropping to less than 5mA at 12V.
Installation and marine safety
System integration is simplified by robust power connections via two 12 mm tinned copper studs and a 3-wire control harness equipped with a Wago plug. Certified to IP65 and ignition-protected according to UL 1107, the high-temperature fiberglass-reinforced plastic housing withstands the most severe marine conditions. The system also offers a remote emergency parallel function for 10 minutes, along with a full manual override control for absolute safety onboard.
Documentation
Documentation
Expert opinion
Expert opinion
Pol CONIN
Digital Manager
« Optical reliability and optimized coupling thresholds for modern alternators »
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