Smart Adjustable Battery Isolator VSR 12V 140A – Pro

The Pro adjustable voltage-sensitive relay (VSR) automatically connects the starter and auxiliary battery banks when charging voltage rises, then isolates them when voltage falls to help protect the starter battery.

Key Features:
• 12V 140A smart battery isolator
• Automatic and manual operating modes
• Digital voltage display
• Adjustable cut-in voltage (default 13.3V)
• Adjustable cut-out voltage (default 12.8V)
• Adjustable 3–5 second cut-out delay
• Low standby current draw
• IP67 protection rating
• Suitable for dual-battery systems in vehicles, RVs, boats and off-grid applications

Technical Specifications:
• Charging voltage: 12V
• Display range: 4.5V–20V
• Current draw: 330mA while charging; 1mA standby
• Default cut-in voltage: 13.3V
• Default cut-out voltage: 12.8V
• Cut-out delay: 3–5 seconds, adjustable
• Protection rating: IP67

The unit can be configured from the front controls for automatic/manual operation, operating voltage and delay settings. Install according to the supplied wiring instructions.

12 Months Warranty