Flaming River Big Switches with removable keys offer enhanced security and safety features. These units are rated at 250 amps for continuous service and 2,500 amps for 5-second intervals (12V/24V). They are heavy-duty waterproof switches, and their removable key feature is ideal for construction, farm equipment, and passenger cars. The keys are absolutely essential theft deterrents for these units and are available with or without an illuminated LED that easily indicates whether the system is on or off for proper shut down procedures.