Product Details: The Littelfuse Diode Battery Isolators is designed to provide superior protection for negative ground 12-36V DC systems. These isolators feature electronic parts that are implanted to provide superior defense against harmful factors such as reverse polarity, over-voltage, and over-current. The isolators also feature an integral heat sink that provides effective heat dissipation. This ensures that the isolators are able to operate at peak performance for extended periods of time.<br/><br/>FleetPride is your First Click in Heavy Duty®.