Spehro Pefhany said: It has a triac output, so it is not very useful for switching DC. (it will switch "on" but not off until the load current drops below the holding current). It is most useful for switching AC (from 24VAC to 280VAC) at mains frequency. ----- So I should stick with DC version of the relay if I want to switch 24VDC, Thank you Spehro, Omer -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads