Low voltage switchgear is rated up to 1KV and consists of low voltage switches, earth leakage circuit breakers, HRC fuses, electrical isolators, Air circuit breakers (ACB), Moulded case circuit breakers (MCCB) and miniature circuit breakers (MCB). With LV switchgear, electrical appliances are safeguarded against short circuit and overload by an electrical circuit breaker, but the operator is not protected against internal faults. By using an earth leakage circuit breaker, which detects leakage current, operators will be guarded as the appliance is disconnected before any harm is done.