Solid state relay question

[Precious Roy]

Hello,

You can buy there solid state relay boards http://www.ebay.nl/itm/5V-8-ch-Solid-State-Relay-Genuine-Keyes-Module-240V-AC-2A-Arduino-Flux-Workshop-/121957116913?hash=item1c6535ebf1:g:ZwwAAOSwKfVXEOsB

And i think this is the datasheet for the relays http://www.rhydolabz.com/documents/29/Solid_State_Relay_g3mb_datasheet.pdf

but i am wondering I need to switch 24v ac and i get the feeling when reading the datasheet that they will not work for 24v ac

can any of you confirm or deny my suspicions?

[snarkysparky]

It may not work for the low voltage you specify.

The reason is outlined in this document on page 2-14

http://literature.rockwellautomation.com/idc/groups/literature/documents/at/700-at001_-en-e.pdf

The output side uses the applied voltage to trigger the internal triacs.  If it's below the design threshold it will trigger late or not at all.