Control Catalog

Reduced Voltage Starters Electromechanical

Section 2

CR332 Wye-Delta Starters Schematic Diagrams

Typical Schematic Diagram for Closed Transition Wye-Delta Starter (NEMA Size 7YD)

Typical Schematic Diagram for Closed Transition Wye-Delta Starter (NEMA Size 4YD)

Diagram Legend 1M, 2M - Line Contactors 1S, 2S - Start Contactors RA, RB, RC - Transition Resistors OL - Thermal Overload Relay TR - Pneumatic Timing Relay 2MX - 2M Auxiliary Relay

ICR - Control Relay TR - Timing Relay FU - Fuse TC - Time Closing CT - Current Transformer RES - Resistor - Terminal Board Point

Product Number Selection Instructions: See page 2-50

Rev. 4/16 Prices and data subject to change without notice

Control Catalog

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