Magnetic Contactor--Working and Connection " With English Subtitles " 

if you want to learn about the working and connections of a magnetic contactor , here is a nicely explained video in Hindi and Urdu .
in this video i will show you the
1- parts of magnectic contactor
2- connections of magnetic contactor
i will also explain the terms used in magnetic contactor like NC contact or normally close contact & NO contact or normally open contact .
if you want to learn more about magnetic contactor please visit my channel .
/ electricfocus
"Magnetic Contactor" is a magnetic switch and use to turn ON and OFF heavy Load's, for example ; Motor's ,Generatro's etc.
heavy Load's, for examplif you want to learn about the working and connections of a magnetic contactor , here is a nicely explained video in Hindi and Urdu .
in this video i will show you the
1- parts of magnectic contactor
2- connections of magnetic contactor
i will also explain the terms used in magnetic contactor like NC contact or normally close contact & NO contact or normally open contact .
if you want to learn more about magnetic contactor please visit my channel .
e ; Motor's ,Generatro's etc."Magnetic Contactor can be used either AC or DC "
different types and power rating magnetic contactorsare available in market .
Basically it have "3" main parts of "Magnetic Contactor" are
1st one is its electromagnet .electromagnet is for switching the contactor.The
2nd part of "Magnetic Contactor" is its main contactsNamely "U, V , W , R , S, T"these are the main contacts of "Magnetic Contactor"main contacts are use for connecting loadthis
"Magnetic Contactor" is designed for 3phase systemyou can attach all three phases "red"yellow"blue"for switchingthere are
also auxiliary contacts of "Magnetic Contactor"the four terminal beside main cntactsthese two contacts are the auxiliary contacts of "Magnetic Contactor"
the top two contacts areNC or normally close contacts it is also mention at the top surface of "Magnetic Contactor" moreover, the bottom two contacts are theNO or normally open contacts .the rating of auxiliary contacts is less then the main contacts.auxiliary contacts can handle minimum amount of current comparatively main contacts.
auxiliary contacts can handle minimum amount of current comparatively main contacts.
main contacts can trip more then 1000A current but the auxiliary contacts can't handle higher amount of current you can also see another two contacts on the top side.which marked as A1 and A2 are contacts of its coil.the coil of this magnetic contactor can operate upto 440v volts
.often devices in power system , the terminals of coil Mareked as
A1 and A2.so this is the brief introduction of "Magnetic Contactor"
Now we will see the working
of "Magnetic Contactor"for this purpose, I draw a circuit diagram it is the electromagnet of the "Magnetic Contactor" A1 and A2 are the two contacts of this electromagnet when we apply 440 or 220 volts at these terminals
, this coil will become an electromagnet and it will pull the move-able part toward itself .and the result of this movement the contacts of the contactor will make and break.as i told you that , two types of contacts,main contacts are marked as u,v,w and r,s,t these are the main contacts another two contacts are present at the top side one of them is NC and other is NO as you can see the main contacts are made up of heavy copper links but the auxiliary contacts are made up of thin copper because they are used for small amount of current auxiliary contacts are use for its ON and OFF operation of "Magnetic Contactor"