Hello,

I have a 110 kW motor that should start in star-delta, in two directions. I want to ask for some drawings for the control circuit and the dimensioning of the four contactors.

 

The information you are looking for is on the Square D website. The link is:

http://www.squared.com

The file name is 8600CT9601.pdf

Class 8600 Reduced Voltage Starters
Wye Delta Starters

Class 8630 Wye Delta Starters both open transition and closed transition types.

The wiring diagrams are on page 10

(110kw / 746 is about 150 hp) or a size 5 starter with 480 volts

I hope this helps