There are so many " What if's" that only guessing works well. There are also " Shunt Trip" breakers that break with say 50 mills to cut a 20 amp circuit. Usually we think of a breaker with a bi-metal strip heating and curling out of the way at a certain temp caused by over current. Some even reset by themselves!. The shut trip can be configured to trip if a overvoltage condition occurs instead of over current. Even if a interlock door is opened. I have a Heinemann that has extra coils that sense the current while the contacts only open or close the circuit without regard to actual current through contacts.Think it is called hydraulic, but I would bet there is no oil.. Just another $0.01 worthless.. 73 Mike
Bi-metal is very interesting stuff. Since all metals have a different thermal coefficient of expansion, two metals of different types bonded together will curl when it gets hot or cold.Makes dandy breakers, and thermostats! ----- Original Message ----- From: "John Lawson" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" <[email protected]> Sent: Monday, December 04, 2006 12:40 PM Subject: Re: [AMRadio] Breaker Info > > > On Mon, 4 Dec 2006, Jack Schmidling wrote: > > > I need some help understanding the main power switch on my powersupply. > > > > > Here is some info on current (no pun intended) Hienemann/Eaton brakers - > > > http://www.circuitbreakersinc.com/cirguide.pdf > > > it's possible you have one of the "dual-rating" devices - with two > different ranges that will trip the breaker. > > > The diagrams show 38 different configs - a bit more tracing and/or > voltmeter work might narrow this down some. > > > Cheers > > John > KB6SCO > DM90fg > > ______________________________________________________________ > AMRadio mailing list > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Partner Website: http://www.amfone.net > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > > ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected]
