On Fri, 26 Jan 2001 10:44:09 +0200, you wrote: >Sorry this is off-topic! > >My pic is connected to a triac optocoupler(MOC3041) that drives a bigger= triac (IT615) which is rated at 600V 15Amperes.=20 > >When I switch 2.5KW heater element on at 220Volt the triac(IT615) with = heatsink becomes very-very hot. Must I get a higer rated triac or must I = look for some other problems? > >I am sure that the pic software don't switch the triac on/off the whole = time..It switch on at a certain time and off after a 5minute delay. If you need small size, low cost, and low heat, a good old-fashioned relay is still hard to beat! -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu