I've went in the "search" menu and found some great information on "shunt trip breakers". I have a job where I will not be able to add any shunt trip breakers because the panel is packed and I know a shunt trip breaker requires another space, so I'm thinking about going just above the panel and setting a traugh and installing contactors inside the traugh to control the other circuits that need to go off when the Ansul system calls for it. Since the shunt trip breakers require 120 volts to activate it, will I not have to run another wire to the NC contact on the ansul system to energize the coils on my contactors, so that when the ansul system is activated, the coils will "drop out" on the circuits I have installed the contactors on? I was originally thinking I could come off the same wire that the other "shunt breakers" were on, but if they need the presence of 120 volts to trip, then I need the absence of 120 volts to make my contactors drop out. Thanks for the help. Steve...
