SSR Enclosure

[sigtaulightning]

So I am getting ready to assemble the SSR's into some type of weather resistant device/box ... I am considering a weather proof single gang box to place the SSR in and have the plugs exit out of the bottom. A similar design to HowTo: SSR Enclosure using extension cords (Bill Adelsberger) found at
http://computerchristmas.com/christmas/link-how_to/HowToId-78/SSR_Enclosure_using_extension_cords


My concern is the heat. What type of considerations should I have for this? If I put the standard Aluminum heat sink on will that be enough or does the air need to flow. Your suggestions and thoughts are greatly appreciated.

Thanks
Sig

[wjohn]

Sig,

I ran a test last week The TRIAC without a heatsink is good for around 50 Watts continuous load (12VAC MR16 globe at 4 amps), but it is hot!! and will discolor the TRIAC and heat up the PCB. I would not recommend this.


Putting the right angle alum heatsink onto the TRIAC disipates the heat effectively. at 50 Watts, it is just warm, and you should be able to use without any dramas.

While this test was done at 12VAC, you would see the same effects at 110VAC, and similar loads.

John.

[tfmacz]

This is what I have done for a weather proof housing for the ssr boards. About half way down the page.

http://members.shaw.ca/christmaslights/

They are mounted face down on a post, fence post, display support,or anything handy.

http://members.shaw.ca/christmaslights/photos/Photo_011407_006.jpg

[scharbon]

You have got to take a photo of your shop and post it in the Showing Off section (http://www.doityourselfchristmas.com/forum/viewtopic.php?t=708) along with the other shops forum members have posted. You have a CNC along with a full bench of electrical equipment?

I have a Black and Decker workmate and RatShack sodering station - thats it :( .

Maybe santa can get me a CNC. Hmmm.......... :D

SSR enclosures look really nice. Looking forward to seeing other photos of your stuff posted in the photo album.

Steve