Longacre Weatherproof HD 40 Amp Ignition Switch Completely Sealed with Polyurethane Coating The back side of this switch is completely sealed and weatherproofed with a tough, waterproof polymer coating. Keeps out dirt, dust and moisture that can turn a critical switch into a useless dead end connection, possibly putting you out of a race. * Heavy Duty 40 Amp Switch * Includes Weatherproof Cover & Wire Terminals Low Cost Insurance - No Annual Premiums!