This practical course explains basic principles of motor starters including power and control circuit, electrical measuring instruments (multimeter, clamp ammeter, and merger test), meters (volt, frequency, and amp. Meter), tools (cutter, Player, nose Player, …etc.). As well as introduce the important devices used on motors starters such as push buttons, switches, wire connection, relay, over load, timer, contactor, circuit breaker and fuse, indicator light, limit switch and float switch.