/diy/ - Do It Yourself

>>1196995
>contacts
The difference in AC vs DC relays is the coil, not the contacts.
AC relays (with AC coil) can be used to switch DC through the contacts.
DC relays (with DC coil) can be used to switch AC through the contacts.
>>1196995
>AC has zero-crossing which kills the arc, but DC can sustain it.
Contacts arc more on opening than on closing.
R/C filters are available to suppress arcing whether switching AC or DC.
>>1196995
>Better not be switching upwards of a few (dozen?) amps through an AC relay.
really? you should get out more.