What are steps how to wiring a Star Delta Starter

Here are the steps for wiring a Star Delta Starter, based on the diagram you provided: Power Circuit Wiring: Step 1: Main Power Input and MCCB • Connect the 3-phase incoming power supply (R, Y, B) to the input terminals of the MCCB (Moulded Case Circuit Breaker). • From the output terminals of the MCCB, distribute the three phases to the rest of the circuit. Step 2: Main Contactor (M) and Overload Relay • Connect the output of the MCCB to the input terminals of the Main Contactor (M). • Connect the output terminals of the Main Contactor (M) to the input terminals of the Overload Relay. • Connect the output terminals of the Overload Relay to the primary windings of the motor (U1, V1, W1). Step 3: Star Contactor (Y) and Motor Secondary Windings • Connect the secondary windings of the motor (U2, V2, W2) to the input terminals of the Star Contactor (Y). • Short-circuit the output terminals of the Star Contactor (Y) together to create the star point. Step 4: Delta Contactor (Δ) and Motor Secondary Windings • Take a 3-phase supply directly from the output of the MCCB and connect it to the input terminals of the Delta Contactor (Δ). • Connect the output terminals of the Delta Contactor (Δ) to the secondary windings of the motor (U2, V2, W2) with the following cross-connections to achieve delta configuration: Delta Contactor output T1 to motor terminal W2 Delta Contactor output T2 to motor terminal U2 Delta Contactor output T3 to motor terminal V2 Control Circuit Wiring: Step 5: Control Circuit Power Supply and Safety Chain • Take a single-phase supply (L) from one of the phases after the MCCB for the control circuit. • Connect this control supply (L) through the normally closed (NC) auxiliary contact of the Overload Relay (O/L). • From the O/L NC contact, connect to the NC contact of the STOP Push Button. Step 6: Start Button, Main Contactor (M) Coil, and Holding Circuit • From the output of the STOP Push Button, connect to the normally open (NO) contact of the START Push Button. • From the output of the START Push Button, connect to the coil of the Main Contactor (M). • Wire an NO auxiliary contact of the Main Contactor (M) in parallel with the START Push Button to create a holding circuit (latch). Step 7: Timer (T) and Star Contactor (Y) Coil Circuit • From the point after the START Push Button (where the M coil is connected), connect to the coil of the On-Delay Timer (T). • Also from this point, connect through a normally closed (NC) auxiliary contact of the Timer (T) and then through a normally closed (NC) auxiliary contact of the Delta Contactor (Δ) to the coil of the Star Contactor (Y). This ensures interlocking (Star and Delta cannot be ON simultaneously). Step 8: Delta Contactor (Δ) Coil Circuit • From the point after the START Push Button (where the M coil is connected), connect through a normally open (NO) auxiliary contact of the Timer (T) and then through a normally closed (NC) auxiliary contact of the Star Contactor (Y) to the coil of the Delta Contactor (Δ). This also ensures interlocking. • Connect the other side of all contactor and timer coils (M, T, Y, Δ) to the Neutral (N) line. Got more? Send 'em 📸