What is the name of the switch/circuit which disconnects the load when a power outage occurs and wont reconnect even if power comes back until a button is pressed 
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Re: Switch??
the breaker?"Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin slitting throats." - H.L. Mencken -
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Re: Switch??
A double pole relay can be wired to do this. It can be done electronically also.Originally posted by keyboardcowboyWhat is the name of the switch/circuit which disconnects the load when a power outage occurs and wont reconnect even if power comes back until a button is pressed
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Switch??
a breaker would do this only if there is some kind of short or some other problem..i want it done under normal condition..
For example my braun shaver does exactly this,it runs of an adapter it has an on/off switch on itself but when the adapter is switched off and back on the shaver wont turn on until the button on the shaver is pressed againComment
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Re: Switch??
If the adapter outputs DC, this could easily be done with an SCR (Silicon controlled rectifier). It would also be possible to this with a triac in an AC circuit.Originally posted by keyboardcowboy
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Switch??
He may also be asking about the type of switch used in some TV's.
This type of switch is used in some electronics so that if your power goes out the component will not power back on when the power outage or breaker is turned back on. They will only turn back on when the switch is pressed again. Or they will not power on after 15 seconds of power loss.
When power is lost and restored within 15 seconds, the load stays on
When power is lost for more than 15 seconds, the load turns off..
Not sure what the name of this is called I thought it was a reed switch or magnetic switch but I was wrong.^Learning to walk on rice paper without leaving a trace,Comment
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Re: Switch??
It sounds like a load transfer switch like on a standby UPS to me.
When the power goes out the load is transferred to an inverters output.
With a mechanical relay this will take around 6ms or so for transfer. With a semiconductor based relay I'm sure the response time will be faster.Last edited by Krankshaft; 06-20-2009, 11:30 AM.Elements of the past and the future combining to make something not quite as good as either.Comment
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Re: Switch??
A contactor or latching relay.
Typically used to start high amperage loads such as air conditioners and high HP motors and such.
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