According to Solar Flaire :
You have a definite comprehension problem. How many time have I
explained you have twisted the meaning to something that wasn't
posted?

Read again and think. "where would I use this device in a large
automotive plant?"

Who is talking about large automotive plants?

You wouldn't use one of these in an automotive plant:

http://www.acroelectric.com/standby-...ansfer-switch/

Note the CSA approval.

and "when did manual become automatic?"

How is a plug and receptacle _not_ a manual disconnecting device?

CEC permits both manual and automatic transfer switches.

Or http://www.powertogo.ca/transfer_switches.htm
--
Chris Lewis,

Age and Treachery will Triumph over Youth and Skill
It's not just anyone who gets a Starship Cruiser class named after them.