The Flaming River 1.18" Stud 12/24V Big Switch 500 with Lock-Out Bracket is the perfect choice for those who need a reliable and durable switch. This switch is made from glass-filled nylon for impact resistance and extreme temperature resistance, making it ideal for both the racing and heavy duty trucking markets. It can withstand severe vibration and has a max continuous current of 500A and an operating temperature range of -40 °F to +176 °F. The contact terminals are silver-tin oxide plated copper for superior conductivity and corrosion resistance. This switch is designed to provide reliable performance in the most demanding environments. FleetPride is your First Click in Heavy Duty®.