Power Relays over 2 Amps are an electromechanical device which turns a large load on or off through the use of a smaller control signal. The contacts on these devices have a rating of 2 A, 3A, 3.5A, 4A, 5A, 6A, 7A, 7.5A, 8A, 8.5A, 9A, 10A, 11A, 12A, 14A, 15A, 16A, 18A, 20A, 21A, 23A, 25A, 26A, 30A, 31A, 32A, 33A, 35A, 40A, 48A, 50A ,60A, 90A, 100A, 120A, 150A, 200A, 400A, and 750A.