I need help with Relay Specs?
I am a physics undergrad working in a lab at UCLA, and we are currently trying to figure out how to automate our current setup.
I am quite new at practical electronics. I have handled a few things in class before but most of that was theoretical, and Relays were never really discussed.
I am currently looking at some solid state relays on Newark, but i don't really know what i am looking for
the schematic i drew up uses two relays. Our LabView system can put out 10VDC at 2mA, so i am using a relay to draw current from the wall @ a small DC voltage, and then using that voltage to operate another relay that will draw a 120V/60Hz current out of the wall to power some solenoid valves.
The 2nd Relay is already taken care of (turns on a 3V 10mA), but we now need the smaller one to activate it, and to be honest i am not sure what the specs i am looking at mean. what do Load Voltage Max, Load Current, Isolation Voltage, and Forward Current mean?
I figure that the Load current is how much it draws out of the power supply and that the load voltage max is how much voltage is required to switch it, but what is the forward current and the isolation voltage?