The Big Switch is a heavy-duty battery disconnect switch rated at 250 amps continuous service and 2500 amps for 5 second intervals (12V / 24V). The switch is manufactured with silver plated electrical contacts. It is a completely sealed, waterproof design, able to withstand the most severe operating conditions. We back the quality of this switch with a three (3) year warranty. The Big Switch, FR 1005, is supplied with a lock-out bracket which enables a padlock to be inserted in the "off" position to comply with OSHA lock-out/tag-out regulation 1910.147. This prevents accidental activation during equipment maintenance.