I2t : Current Squared times time. This is an electrical quantity that is used to determine energy to a protective device, such as a circuit breaker or fuse
Young & Company Electric Power Products and Related Engineering Services, Glossary of Electrical Terms, http://www.youngco.com/young2.asp?ID=4&Type=3, CA., USA 2001. (Electr Sfty - Amer) {514}