Safety circuits such as E-Stop are generally wired in series meaning the output of one switch is wired to the input of the next and so on. So these have to be wired NC so that there is a High signal to indicate the end of a circuit. If any one switch is pressed, this opens the...
Wired terminal Available Customzied switch Available OEM&ODM Available Product type normal open micro switch Show more Lead time Customization Know your supplier Jiangxi Shuangdu Technology Co., Ltd. 4 yrsLocated in CN Order with confidence
http://3dblogger.typepad.com/wired_state/google_witch_hunters.html Reply May 24, 2012 Catherine Fitzpatrick +Emma Puls I would say it was likely a word count limit or space reasons, that's usually the reason these days, the Internet/Google have dumbed down a lot of things and ...