DOWNLOAD :
http://support.automationdirect.com/docs/iec_contactors.pdf
Download :
MOTOR CONTROLS
http://css.wsu.edu/wp-content/uploads/2012/09/Motor-Controllers1.pdf
Electrical Symbols and Line Diagrams
http://abe.ufl.edu/tburks/Presentations/ABE5152/Electrical%20Symbols%20and%20Line%20Diagrams.pdf