VSR (Voltage Sensitive Relay) or ACR (Automatic Charging Relay) are automatically controlled switches that allow two batteries to be combined when charging, and to be isolated when not charging and current is draining from one of the batteries. When used with battery switches, VSR helps to reserve a fully charged battery at all time, avoid the dead battery and possibility of towing on the sea. D-VSR is an upgraded Digital version of VSR with enhanced features like 12/24V system support, dual-port sensing, much lower standby power consumption and better reliability.

DVSR main futures:

• Automatically combines two batteries when charging and isolates the two batteries when not charging
• DC 12/24V input auto ranging
• Sensing voltage from either battery bank
• No voltage drops comparing to battery isolator diodes (0.6V)
• Dimensions fits BF43x Fuse Box Series and Battery Switch, matching mainstream products in market (BEP style)
• Robust Glass Fiber reinforced Nylon enclosure
• Built-in LED indication (ON when VSR engages)
• Port for remote LED indicating VSR status (LED not included)
• Surface or panel mount options provides flexibility when installing
• Optional Storage Mode allows zero power consumption when engine is off

Download:

• Nominal Voltage | DC 12V / 24V Auto Detect
• Combine / Open Voltage | DC 13.3V / 12.8V @ 12V / DC 26.6V / 25.6V @ 24V
• Continuous Current Rating | 125A
• Intermittent Current Rating | 140A
• Power Consumption | 3mA (Standby) / 270mA / (Engage) / 0mA (Storage Mode)