Anyone using DIN mount SSRs? I'm looking at building my automated control panel and curios about using DIN rail SSRs. I realize it's just a heatsink but do they do a better job then the traditional panel mount HS? I would likely try to place it inline on same rail as other terminals and such. Would the heat be passed down the rail? I have found some 40A versions for about $32 and think it would be worth the extra $20 to keep everything DIN mount assuming they work as well.