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Low Voltage Disconnects

Low Voltage DisconnectsLVD

Discharging batteries beyond a critical low voltage can damage the batteries and/or load, and require a longer recharge interval. A low voltage disconnect prevents this condition. The LVD contains a sense and control circuit housed in a compact, rugged, vinyl-clad aluminum case. It is installed in-line between the battery and the load. The unit continually monitors battery voltage and if it falls below a preset voltage threshold, the load is automatically disconnected. When batteries are recharged past another pre-set voltage the load is reconnected. Connect and disconnect points are user adjustable.

Model  Input
Contact Current
Factory Set Actuation Points  Adjustment Range 
Disconnect  Connect 
LVD 12-30 12V (Neg Ground) 30 Amps 10.4 VDC 12.2 VDC 9 – 15 VDC
LVD 12-75 12V (Neg. Ground) 75 Amps 10.4 VDC 12.2 VDC 9 – 15 VDC
LVD 24-50 24V (Neg. Ground) 50 Amps 21.0 VDC 24.5 VDC 18 – 30 VDC
LVD 48-30 48V (Pos. Ground) 30 Amps 42.0 VDC 49.0 VDC 38 – 60 VDC


Operating Temperature: 0 – 50 °C


Dimensions (mounted vertically, all models): 5.25” High x 5.25” Wide x 3.5” Deep

Weight: (All models): 2 Lbs.

Typical LVD Installation