> How to turn on a relay switch????!?

How to turn on a relay switch????!?

Posted at: 2015-01-07 
I see - I have boxes full of them. They are for 24VDCsupply operation. The feed/supply voltage goes to the side where the tow single pins are. Do not forget to put a diode like a 4701 across those to kill the back EMF. The diode has to be connected across those two pins. The banded side is the + (plus) and that is for the positive end of feed voltage. The un-banded or blank side is the minus - or negative side of the feed voltage. So - if you hook up a 24VDC supply to those two pins observing the proper polarity of the diode, the relay will be activated. the contacts are rated @ 120VAC 1A

The multiple pins at the other side are the contact pins in a SPDT (Single Pole Double Throw) configuration. The diagram is printed on the side of the plastic housing. Hope that helps. If you still have problems or questions, email me:

laidbackartist@columbiawireless.ca

EDIT - DO NOT use 120VAC mains voltage to power the relays a techno.... said! you will burn out the coils! Also helpful is MarkG's input re the specs.

electronic tech

24volt DC coil



Here is data sheet info



http://www.alibaba.com/product-gs/649649...





The Ebay photo shows an Omron equivalent with 24VDC clearly marked on its side. However this relay comes in different coil voltages so hopefully you will get what is pictured and not some other voltage. You may have to wait until you recieve the relays to find out what the voltage rating is for the coil.





Next time just goto a Radio Shack a buy a cheap low voltage relay for about $5.

To make the relay contacts move, you need to apply mains AC to the coil pins.



You have not even stated what you expect to do with it. I'm left wondering why you bought it, without knowing what for.



So if you don't know what you are doing, I would suggest you do NOT monkey with mains power!



And you do appear not to know.



Mains power is between dangerous and deadly for the unaware.

Connect 24V DC to the coil pin1 and 2 to activate it. It was marked on its label.

It says 110/220 VAC and 1A.



VAC means volts, alternating current



A in 1A means Ampère.





To obtain 1A from 110 VAC you need a resistor R in your circuit such, that 110/R =1



To obtain 1A from 220 VAC, you'll need a resistor R in your circuit such, that 220/R=1.





Hope it helps.



Merry Christmas!

so i recently bought a relay switch





http://www.ebay.ca/itm/271081451265?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649#ht_1449wt_1111





and i dont unerstand how much ampere and volts i need to turn on the switch.



i know there are not alot of details, but please, help me