Can 24VDC NPN Output, switch a 12VDC Relay?

[ndzied1]

So long as the commons are tied together and the current is not overdrawn, can I use a 24VDC NPN output (sinking) to switch a 12VDC Relay?

So one leg of the relay coil is tied to +12VDC and the other leg wired to the NPN output?



Thanks,

 

[daba]

I don't see why not, and i don't see what harm it would do to try it.

But why not use a 24V relay, or are times really that hard ?

 

[ndzied1]

I don't see why not, and i don't see what harm it would do to try it.

But why not use a 24V relay, or are times really that hard ?

No, retrofit job. New 24V PLC and old 12V Relay

 

[Hydro Power Guy]

If you don't have many to do, you could put a resistor in series so you drop the voltage. Or possibly use a contact output module and just switch the 12v?

 

[adel1961]

yes you can