In a message dated 6/17/2003 2:06:14 PM Eastern Daylight Time, lors01@msn.com
writes:

> The term "contactor" usually refers to the relay that carries the main
>  current supply to the starter.  This is already built in to the starter
>  (solenoid).  True, the contactor or solenoid takes a good bit of current to
>  actuate but a separate relay to handle this seems like unnecessary
>  complication when a *PROPER* switch will do the job.  Just haven't heard a
>  compelling reason why this relay is necessary.
>  
>  Tracy
>  
Right, if the starter has a solenoid. If not, then a solenoid should be used
to power up the starter.
Lynn E. Hanover