The Big Switch is a heavy-duty battery disconnect switch rated at 250 Amps of continuous service in 12V and 24V systems. The Big Switch is manufactured with silver plated electrical contacts and a sealed, water resistant design that is able to withstand the most severe operating conditions. The Big Switch comes standard with a three (3) year warranty.Top racers realize that using a low amp switch creates resistance and actually reduces power. Flaming River's heavy duty battery disconnect switch is top of the line designed for complex electrical systems and 16 Volt batteries.