- Joined May 15, 2010
Overkill in my opinion. Depending on the max. current drawn through the relay contacts possibly something like a CPC1511Y.Am I on the right track?
SSRs usually either MOSFETS or in some cases with AC circuits they will use TRIACS. TRIACS are cheaper, but have a voltage drop around 1.7 volts, which isn't too bad when switching 240V AC, but is pretty significant if switching 12V AC.hi,
Have you considered suitably rated SSR's Solid State Relays.?
I assume your A/C etc is AC powered.
Relays are probably cheaper, especially if you want to switch high power AC at mains voltages with minimal power loss.My home thermostat has relays to switch the heat and A/C. They are very loud. Is there any reason why this couldn't have used MOSFETs for the switching?
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by Robert Keim
by Jake Hertz