Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
You must login to post a message.

10/22/2019 5:31 AM
Thanks to you all....... I was not sleeping ... I stayed awake worried about it all. :)

Koffee Kosmo
10/21/2019 5:00 PM
While you were sleeping I have been active in booting out some spammers along with the posts they tried to sneak past me

10/21/2019 2:41 PM
Apologies, fixed it asap! BBQ grill

10/21/2019 12:35 PM
WOW!! A few minutes ago the site page said "Account Suspended". And would not open the site.

10/18/2019 2:37 PM
Eth Nat Yirg Idido roasted yesterday. I dropped some off at a friends coffee shop. In a few days he will brew it and tell me what he thinks. We believe my roasts are better than what we buy.

Users Online
Guests Online: 3

Members Online: 0

Total Members: 6,206
Newest Member: chapeshiel
In Memory Of Ginny

Latest Donations
renatoa - 2.00
allenb - 25.00
snwcmpr - 10.00
Groveland Hill Roas... - 25.00
renatoa - 2.00

View Thread

Who is here? 1 guest(s)
 Print Thread
SSR for heating element
For those driving the heating elements on their roasters with an SSR, do you use a heat sink?

If not, have your relays met untimely deaths?
Gullygossner wrote:

For those driving the heating elements on their roasters with an SSR, do you use a heat sink?

If not, have your relays met untimely deaths?

I don't use one, although I have the SSR (and everything else) screwed into a metal sheet, so that does add a bit of heat transfer. The SSR has been fine for well over a year now, in a non-ventilaed enclosure. That's drawing about 10A on an SSR rated for 25A.
Beware that inside the Fotek 25A there is actually a 12A triac, so the rating is fake.
Me too I found a 16A triac in a 40A SSR, so the false claims are spread probably across their whole line of products.

Though, I continue using them, but for 6A (1300W/230V) heater, which is reasonable.
10A could be a bit at the edge...

However, this is only a warn and not 100% on topic of original post.
The decision to use or not a heatsink depends mainly on SSR metal plate temperature, which is a factor of consumed current, not of triac rating.
If you can keep the SSR in hand for long time during the roast, then you are under 55 C, which is lukewarm for silicon., no heatsink required, rather a better ventilation.
I use the 40A rated Fotek (that I found inside to be 25A triac).
I mounted it on at standard CPU heat sink I had laying around.
Driving 1700-1800 watt it gets 40-45C warm after 10 minutes.
Jump to Forum:

Similar Threads

Thread Forum Replies Last Post
Heating Element Enclosure Ideas Electric and Gas Heat Sources 11 01/13/2019 7:15 AM
ceramic infrared element Building a Coffee Roaster 3 11/06/2018 11:58 AM
Oreck XL blower and Popper heating with recirc Fluidbed Roaster 41 11/04/2018 5:22 AM
Low fat fryer for heating Turbo Oven Roasters 5 10/25/2018 6:35 AM
Heating Issues with Nesco Pro Other Roasters 4 07/16/2018 10:04 PM
Homeroasters Association Logo, and all Content, Images, and Icons © 2005-2016 Homeroasters Association - Logos are the property of their respective owners.
Powered by PHP-Fusion Copyright © 2019 PHP-Fusion Inc
Released as free software without warranties under GNU Affero GPL v3
Designed with by NetriX