STAR-DELTA Starter Without Timer for 3 Phase induction motor. Power, Control & Wiring Diagram of Star-Delta Starter. R , Y, B = Red, Yellow, Blue ( 3 Phase Lines)C.B = General Circuit BreakerMain = Mai SupplyY = StarΔ = DeltaC1, C2, C3 = Contatcors (Power Diagram)O/L = Over Load RelayNO = Normally OpenNC = Normally Closed K1 = Contactor (Contactor coil) K1/NO = Contactor Holding Coil (Normally Open)K1 , K2, K3 = Contators (For Control Diagram )
