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Loads: Some baseboard heaters (1500W max, some motors, 12A max). I have no experience using Triacs and optocouplers. Triac: T3035H-6T, Datasheet: Optocoupler: MOC3062SM, Datasheet: Optocoupler is driven by a 5V micro controller output which will be on as long as the load needs to be on.
I am planning to control the Triac with the MOC3062SM optocoupler, and would like your comments on the example circuit in the datasheet (Basic Applications). I am uncertain about how to dimension (watt) the two 360 ohm resistors on the 240VAC load example.
I mean, if the optocoupler triac is conducting as long as LED is on, then 1/3A is flowing in the resistors, and producing a cozy 80W. So I guess I am not understanding the workings of the optocoupler, as I cannot believe we need to dissipate that kind of heat. EDIT: I just realized the 1/3A is just momentary, the load takes the bulk of the voltage as soon as the triac fires.
Or does the optocoupler switch off a certain number of degrees into the cycle? Your input will be appreciated.