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[RGRAT1618]

I am looking for a power sequencer for 12-volt power. What I need it to do is when I turn on one switch, the sequencer turns on 4 relays a half a second apart from each other. I know there are some made by code 3 but they are ready costly. Thanks for all the help as always.





Rob G

 

[illflem]

Grainger has adjustable time delay relays, problem is that 12 vDC relays of this type aren't common and tend to be pricey.

 

[Animal]

Just use an R/C time constant, have the switch feed the first relay, have each additional relay feeding the next 3 second relay with it’s control voltage. Also depending on the ohm’s of the relay, an L/C time constant may work with the relay as the inductor.