Cole Hersee introduces its SureStart™ Low Voltage Disconnect (LVD) Switch 48513. The Cole Hersee SureStart™ Low Voltage Disconnect Switch electronically senses battery voltage and conserves starting power by disconnecting non-critical loads, prolonging battery life by preventing battery damage due to excessive discharge. This switch is ideal for utility and delivery vehicles, as well as vehicles with ancillary on-board equipment, such as snowplows, hoists, pumps, floodlights, etc., as well as in-cab amenities such as A/C. When battery drain occurs, there are substantial costs associated with downtime, vehicle recovery, and battery damage due to over-discharge. These costs can be eliminated when a Cole Hersee’s SureStart LVD switch is used.

The switch has a rating of 100A at 12V or 24V DC.  Its service life exceeds 1,000,000 on/off cycles, and it also features a manual override that allows users to connect or disconnect the switch when needed, regardless of voltage.

The SureStart LVD switch features a compact size (4.5 x 4 x 4.27”) which makes it easy to install into a new or old vehicle.  Unlike many voltage monitoring devices, the SureStart LVD switch does not require a separate solenoid to control high current, increasing reliability, and simplifying installation.  The switch’s resistance to moisture, salt spray, vibration and shock make it a versatile device that can be implemented into any vehicle or environment. 


• Operating temperature range -40 to 85˚C (-40 to 185˚F) • Ingress protection IP67 • Humidity 0 to 90% RH • Vibration 10-500Hz • Inductive transient +/- 600V • Load dump + 150V • Battery terminals (1/4” – 20)
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