Hi Everyone,
Thanks for looking at my post and I hope you will be able to help.
My understanding of relays is limited. What I know is you can have coils that require a DC or AC supply
which when energised will change the positions of the output contacts (eg, NO will go Closed and vice versa).
Take for instance a 24VAC relay coil from the link below. Reading the product information, I realise it states the
contact voltage VAC is 250 VAC and 3 lines below that it states Contact VDC as 30VDC. Why do we have VDC on the contacts when
we are putting in VAC? Is there any rectification going on inside the relay to get VDC because to me we can only put in 24VAC and I'm not expecting VDC on the contacts. Or are they stating we can ahve both DC and AC on the contacts and if so which pins do we get them from?I'm only expecting VAC on the contacts information but not both. I am very confused. Your help is deeply appreciated.
http://uk.farnell.com/omron-industrial-automation/my4in-24acs/relay-4pco-24vac/dp/186600
Thank you in advance.
Thanks for looking at my post and I hope you will be able to help.
My understanding of relays is limited. What I know is you can have coils that require a DC or AC supply
which when energised will change the positions of the output contacts (eg, NO will go Closed and vice versa).
Take for instance a 24VAC relay coil from the link below. Reading the product information, I realise it states the
contact voltage VAC is 250 VAC and 3 lines below that it states Contact VDC as 30VDC. Why do we have VDC on the contacts when
we are putting in VAC? Is there any rectification going on inside the relay to get VDC because to me we can only put in 24VAC and I'm not expecting VDC on the contacts. Or are they stating we can ahve both DC and AC on the contacts and if so which pins do we get them from?I'm only expecting VAC on the contacts information but not both. I am very confused. Your help is deeply appreciated.
http://uk.farnell.com/omron-industrial-automation/my4in-24acs/relay-4pco-24vac/dp/186600
Thank you in advance.