Greg,
A specially configured starter is required to start and run a motor in this manner. I believe any twelve lead squirrel cage motor can be operated using the "star-delta" or "wye-delta" method. Three contactors reside in a starter of this type. One of the contactors bridges between 10,11 and 12 during the starting period, which is usually an adjustable time.
Have you considered using either a "soft-start" starter or a variable frequency drive? The prices of these solid state devices have become much more competitive with the star-delta starter in recent years and the wiring is so much simpler--three leads plus ground in and three leads plus ground out to motor. To use the wye-delta starter, all 12 leads must be brought out to the starter from the motor. If the shaft bearings are properly grounded with grounding kits, and the motor is purchased with windings that are suitable for the higher D.C. voltages often present in motors connected to VFD's, the motor will last a long time. A google search for information or a call to a sales rep for motors and starters in your local area will produce a wealth of information on the subject.
Good luck!
