Power Loss On Off Switch
Power Loss On Off Switch
(OP)
I am looking for a swith, mountable to the front of an enclosure, that when power is lost or inturupted, Automatically switches to the "off" postion and has to phisically be turned on. Any idea's would be helpful.






RE: Power Loss On Off Switch
Search on "3-wire control" circuits.
RE: Power Loss On Off Switch
N.O. pushbutton =(Start or 'on' or 'reset') and one N.C. push button =(stop or 'off')wired in series with the relay coil and one N.O. holding (latching) contact connected across the N.O. (start) contact.
Wire the load through remaining realy contact(s).
RE: Power Loss On Off Switch
http://www2.gocci.com/electroswitch/electroswitchesandrelays/default.htm
RE: Power Loss On Off Switch
RE: Power Loss On Off Switch
thanks for the suggestions so far...keep 'em coming
RE: Power Loss On Off Switch
RE: Power Loss On Off Switch
Incidentally, Busbar second posting that addresses 3-wire control circuit is probably referring to a magnetic contactor or starter circuit. Any better control product catalog has it included, e.g. Square D Digest catalog, General Electric control catalog, etc.
Visit
http://fie.engrng.pitt.edu/fie2002/papers/1499.pdf
etc. for more info